Wednesday, 25 April 2012

Bardick Snake (Echiopsis curta)

The bardick is a small snake found in leaf litter and among vegetation debris in semi-arid areas of the southern part of the continent. It is grey or grey-brown in colour and typically grows to no mre than about 60cm in length. The head is distinct, being broader tha the neck. It preys on small lizards, frogs and small mammals. Its venomous status is uncertain, but the venom has been found to have similarities with death adder venom. Females produce a litter of between 3 and 14 live young.




Description

The Bardic Snake is an evil Yuan-Ti character. The Yuan-Ti are known as a deceitful and controlling race, and so the idea of one who would sing lies in order to weaken an enemy is fitting, as is the Bard's use of enchantment spells to control enemies. This particular Yuan-Ti is also an experienced veteran warrior and has dabbled in necromancy (hence the Blackguard and Pale Master levels). Because of these factors, this particular build has very solid role-playing qualities. However, it is made also as a power build designed to gain both Epic Divine Might and Hymn of Requiem while achieving high saves, spell resistance, and AC as well as significant power with enchantment spells. It is extremely versatile, with countless options for how to approach a battle. As such, there are very few types of enemies that this character is hard-pressed to deal with. In fact, this build tested favorably against most builds I tested it against in the Battle of the Builds mod. This is remarkable considering 1v1 completely ignores the important party buffing aspect of Bards.



Part of the aim of this build is versatility. It is fun to have multiple viable options on how to approach a battle. The Bardic Snake can approach things in a lot of different ways. He can be use epic divine might to be a major melee damage dealer. He can pump up his defense with inspirations, songs, and spells to become a tank. He can debuff opponent's will saves and then throw out hard to resist enchantment spells. He can throw down a series of bombs like curse song, hymn of requiem, and ice storm and watch like a Wizard or Sorcerer does as his party mops up the severely weakened/damaged enemies. Inspire Regeneration can make him a poor man's cleric between battles. Pumping up Hide and Move Silently (which I dont do, but is certainly possible) and using inspire competence or using invisibility can make him a good scout. Inspire competence in conjunction with sleight of hand or appraise or a conversation skill can get you things you want more easily. With a high Use Magic Device, your battle options extend to any arcane OR divine spell that can be found on a scroll or wand! The Bardic Snake will also be the major buffer for your party like any other Bard. The options are just endless with this character! You can be creative too. For instance, I recently discovered that with NWN2s dumb AI, it is a legitimate strategy to use Inspire Slowness and then have your Bard run in and draw all the aggro of a group. He can run around without getting caught while the rest of your party gets easy attacks of opportunity and sneak attacks on the chasing enemies without taking damage. If your party's health is too low to win a battle head on, this Bard tactic can be a lifesaver. Anyways, let's get down to the essentials:



Range

E. curta ranges from southern Western Australia through South Australia, and west to Victoria and New South Wales. It is listed as Near Threatened by the IUCN..



Habitat

E. curtis inhabit semiarid grasslands and shrublands. They are usually found under rocks, debris, fallen vegetation, etc.

Food and Venom

The species is nocturnal. They prey upon a wide variety of rodents, lizards, amphibians, and sometimes birds and insects- an unusual variety for a small elapid. These snakes are venomous, and, like all elapids, inject their venom swiftly through fangs placed in the front of the jaw.



Reproduction

Little is known about either of these snakes' reproductive habits except that Bardicks are ovoviviparous, and that females give birth to anywhere from 3-14 young around August.

Monday, 26 March 2012

Acanthophis hawkei (Barkly Tableland Death Adder)

Acanthophis is a genus of elapid snakes. Commonly called death adders, they are native to Australia, New Guinea and nearby islands, and are among the most venomous snakes in the world. The name of the genus derives from the Ancient Greek acanthos/ἄκανθος "spine" and ophis/ὄφις "snake", referring to the spine on the death adder's tail.

Seven species are listed by ITIS,[1] though it remains unclear how many species this genus includes, with figures ranging from 4 to 15 species being quoted


Description

Death adders are very viper-like in appearance, having a short, robust body, triangular shaped heads and small subocular scales. They also have vertical pupils and many small scales on the top of the head. Their fangs are also longer and more mobile than for most other elapids, although still far from the size seen in some of the true vipers. Despite their name and appearance, they are not vipers at all. This is a case of convergent evolution.

They normally take 2–3 years to reach adult size. Females are generally slightly larger than the males. They can also be easily distinguished from other Australian snakes because of a small, worm like lure on the end of their tail, which is used to attract prey. Most have large bands around their bodies, though the color itself is variable, depending on their locality. Colors are usually black, grey or red and yellow, but also include brown and greenish-grey


Hunting

Unlike most snakes, death adders do not actively hunt, but rather lie in ambush and draw their prey to them. When hungry, death adders bury themselves amongst the substrate. This may be leaf litter, soil or sand, depending on their environment. The only part of themselves they expose are their head and their tail, both generally very well camouflaged. The end of the tail is used for caudal luring and when wiggled is easily mistaken for a grub or worm. An unsuspecting bird or mammal will eventually notice the 'easy lunch' and attempt to seize it. Only then will the death adder move, lashing out with the quickest strike of any snake in the world.[2] A death adder can go from a strike position, to strike and envenoming their prey, and back to strike position again, in less than 0.15 of a second.


Venom

Death adders can inject on average 40–100 mg of highly toxic venom with a bite. The LD50 of the venom was reported as 0.4–0.5 mg/kg subcutaneous and it is completely neurotoxic, containing neither haemotoxins nor myotoxins, unlike most venomous snakes.

A bite from a death adder can cause paralysis which seems minor at first but can cause death from a complete respiratory shutdown in six hours. Symptoms of envenomation can be reversed through the use of death adder antivenom, or using anticholinesterases, which break the synaptic blockade by making acetylcholine more available to the parasympathetic nervous system, thus mitigating the effects of the venom.

Before antivenom was introduced, it is reported that about 50% of death adder bites were fatal. Deaths are much rarer nowadays as the anti-venom is widely available and the progression of envenomation symptoms is slow.




Tuesday, 20 March 2012

Red Spitting Cobra

Description

This relatively medium-sized cobra attains lengths between 0.7 and 1.2 meters (2.3 and 3.9 ft),[1][2] but may grow to a maximum length of around 1.5 meters (4.9 ft) in very rare cases.[2][3] It is often thought of as an attractive species; it is usually bright salmon-red contrasted with a broad black throat band and subocular teardrop markings.[1] However, the colour of this species does have variation, which usually depends on where in Africa a particular specimen is found. For example, specimens from southern Kenya and northern Tanzania have an orange-red colour, with a broad, dark blue or black throat band. Some specimens may have two or three throat bands, but this is uncommon for specimens from East Africa. The ventral side is also reddish in colour, sometimes the throat area may be a creamy white. Specimens from other areas can be yellow, pinkish, pink-grey, pale red or steel grey. Most specimens will have a throat band, but it will fade or even sometimes disappear in larger adults. The true red specimens will become reddish-brown in colour as they age and grow in size.[2] The body of this snake is slightly depressed, tapered and moderately slender with a medium-length tail. It is slightly compressed dorsoventrally and subcylindrical posteriorly. The head is broad, flattened and slightly distinct from the neck. The canthus is distinct and the snout is rounded. The eyes are medium to large in size with round pupils. Dorsal scales are smooth and strongly oblique.


Scalation

Dorsal scales on the midbody are in 21–27, ventrals are in 197–228, and subcaudals are in 61–72 rows, subscales are paired, and the anal scale is single. There are seven upper labials, one upper labial enters the eye; two preoculars, three postoculars, and the lower labials are usually eight in number (range 7-9).

Distribution and habitat

The red spitting cobra is mainly found in East Africa, including Djibouti, Eritrea, Somalia, southern Egypt, northern and eastern Ethiopia, and northern Tanzania and northern Sudan. It is also widespread in the dry country of eastern and northern Kenya. It primarily inhabits dry savanna and semidesert areas of East Africa up to an elevation of about 1,200 metres (3,900 ft) above sea level. They can usually be found near water holes.


Behavior

Red spitting cobras are terrestrial, fast and alert snakes. Adults specimens of this species are nocturnal, while juveniles are more active during the day. Adults like to hide in termite mounds, old logs, holes, brush piles or any other ground cover during the day.[3] They are also known to be cannibalistic; this could be the reason juveniles and smaller specimens are diurnal while adults are nocturnal.[2]

When threatened, this cobra rears up and displays a typical cobra hood. It may also hiss loudly. If the intruder does not retreat, it may sprays jets of venom to the face of the intruder. Venom that gets into the eyes can cause burning pain and blindness. Even so, this snake seldom causes fatalities in humans.

Diet

This species has a wide range of prey, but they prefer amphibians such as toads and frogs, if and when they are available. However, they will prey on rodents, birds[1] and probably others snakes. They are known to raid chicken runs in the region.


Reproduction

The red spitting cobra is oviparous. The female will lay six to 15 eggs.

Venom

The venom of this species, like most spitting cobras, contains a mixture of neurotoxins and cytotoxins. Bite symptoms include slight pain around the wound and numbness of lips and tongue. Although it rarely causes human fatalities, survivors are usually disfigured.[1] The murine IP LD50 value for this snake is 2 mg/kg.[4]

In September 2011, a snake keeper from the Eastern Cape in South Africa died shortly after a red spitting cobra sprayed venom into his face whilst he and a friend were photographing the snake. Some of the venom was believed to have entered his nasal passages and led to anaphylactic shock. His being asthmatic is believed to have contributed to his fatal reaction.






Saturday, 4 February 2012

Farancia (Mud Snake)

Farancia is a genus of colubrid snakes. It consists of two species, one commonly referred to as the rainbow snake and the other commonly referred to as the mud snake. They are native to the eastern half of the United States.

Description

Farancia species can grow to a length of 30-54 inches. They are usually uniform dark brown or black with a brightly colored underside that is red or orange. Rainbow snakes exhibit red striping down their back.

Behaviour
The snakes of this genus are typically semi-aquatic. Living in the muddy edges of slow moving, permanent water sources. Their diet consists primarily of amphiumas, eels, and sirens. Breeding occurs in early spring, and eggs are laid in a burrow near the water in early summer. The clutch incubates between 8–12 weeks, and hatches in mid-autumn.




Species

    Farancia abacura - Texas, Arkansas, Louisiana, Mississippi, Alabama, Georgia, Florida, North and South Carolina, Virginia, Tennessee, Missouri, Illinois, and Kentucky.
        Eastern Mud Snake, Farancia abacura abacura (Holbrook, 1836)
        Western Mud Snake, Farancia abacura reinwardtii (Schlegel, 1837)
    Farancia erytrogramma - Louisiana, Mississippi, Alabama, Georgia, Florida, North and South Carolina, Virginia, and Maryland.
        Rainbow Snake, Farancia erytrogramma erytrogramma (Palisot de Beauvois, 1802)
        Florida Rainbow Snake, Farancia erytrogramma seminola (Neill, 1964)


Geographic range

The mud snake is found primarily in the southeastern United States, in the states of Texas, Arkansas, Oklahoma, Louisiana, Mississippi, Alabama, Georgia, Florida, North and South Carolina, Virginia, Tennessee, Missouri, Illinois, and Kentucky.



Cultural Significance

The mud snake is one of a few animals which may be the origin of the hoop snake myth. J.D. Wilson Writes:
“     Mud snakes are sometimes known as “hoop snakes” because of the myth that they will bite their own tail and roll after people.[1]     ”

The hoop snake myth has also been attributed to the Coachwhip snake.




Friday, 20 January 2012

Most Venomous Snakes in the World


 1.Taipan (Oxyuranus scutellatus): It is one of the most venomous and deadliest snakes in the world. There are three main sub-species of Taipan such as Papuan Taipan (Oxyuranus s. canni), Western or Inland Taipan (Oxyuranus Microlepidotus) or (Fierce Snake) and Common or Coastal Taipan (Oxyuranus Scutellatus). Taipans are found in Australia and New Guinea. Fierce snake or Inland Taipan is more toxic as compared to Papuan Taipan and Coastal Taipan. Inland Taipan is olive or brown in appearance, with uniformly black head or black marking on the head. Its habitat is grasslands and dry plains. Common or Coastal Taipan is dark or light brown in color with a paler shade on the sides and underside and lightly keeled scales. It is about 6 ft in length. It is found in the open woodlands and forests.

 2. Krait: This highly poisonous snake is found in Asia. It appears black or bluish-black in color with a white narrow cross-bands and a narrow head. Its average length is about 90cms. It is more active at night than during the day. It is 15 times more deadly than the common cobra. Its venom is a powerful neurotoxin, which causes the respiratory failure.
 
3. King cobra: It is world's largest venomous snake. Its average length is about 3.5 meters and it can be maximum 5.5 meters long. It appears uniformly brown, olive or green in color with black cross-bands. King cobra is commonly found in Southern China, Thailand, Philippines, South India and Malaysia Peninsula. Its venom is a neurotoxin type.
 
4. Russell's viper: Russell's viper is more commonly found in India, Sri Lanka, Malaysian Peninsula, Southern China, Sumatra, Java, Borneo and surrounding islands. It has a light brown body with three rows of black or brown splotches having white or yellow border. Its average length is about 1 meter. It is responsible for relatively more human deaths than any other types of venomous snake. While attacking, it coils tightly, hisses and strikes with such a high speed that its victim gets little chance to escape. Its venom is of hemotoxin type, which is a powerful coagulant, causing damage to blood cells and tissues.
  
5. Black Mamba: It is Africa's most feared venomous snake. It is found in Africa's open woodlands and African savannas. It is highly toxic and notoriously aggressive. Its venom is a powerful neurotoxin. It appears uniformly black or brown. Its average length is about 4.3 meters. Its mouth has a black internal lining. It is known as world's fastest land snake with the top speed of 16-19 km/hr.

 6.Tiger snake: It is olive or dark brown in color with olive or yellowish belly and cross-bands. Its subspecies are found in Victoria and Tasmania and it is uniformly black. Its average length is about 1.2 to 1.8 meters. It is one of the most venomous snakes found in Australia. It is also found in New Guinea, Tasmania and Bass Strait Islands. Its venom is a potent neurotoxin that affects the central nervous system. It produces venom in high quantities, with an average yield of about 35 mg to 180 mg.
  
7. Western Brown Snake (Pseudonaja nuchalis): It is found in the grasslands, forests, deserts and gravelly plains. It is a native of Australia. It has a narrow black head and black neck. It may be black or light brown in color with narrow dark crossbars or a series of lighter bands around the body. It is about 1.5 meters in length. Its venom is neurotoxic.

Rough Scaled Bush Viper (Atheris hispida)

Atheris hispida is a venomous viper species found in Central Africa. Known for its extremely keeled scales that give it an almost bristly appearance.[3] No subspecies are currently recognized.

 Description

The males of this species grow to maximum length of 73 cm (body 58 cm, tail 15 cm). Females grow to a maximum of 58 cm. The males are surprisingly long and slender compared to the females.

The head has a short snout, more so in males than in females. The eyes are large and surrounded by 9-16 circumorbital scales. Orbits separated by 7-9 scales. The nostril is like a slit and separated from the eye by two scales. The eye and the supralabials are separated by a single row of scales. The supralabials number 7-10, of which the fourth is enlarged.[3] The body is covered with elongated, heavily keeled scales that give this species a "shaggy", almost bristly appearance. The scales around the head and neck are the longest, decreasing posteriorly. Midbody, the dorsal scales number 15-19. There are 149-166 ventral scales and 35-64 subcaudals. The anal scale is single.


Common names

Rough-scaled bush viper, spiny bush viper, hairy bush viper, rough-scaled tree viper,African hairy bush viper, hairy viper.

The common name "hairy bush viper" should, however, be avoided for this species, as it will likely be confused with the recently described species, A. hirsuta, the specific name for which means "hairy".


Geographic range

Central Africa: DR Congo, south-west Uganda, west Kenya. The type locality given is "Lutunguru, Kivu" (DR Congo).[1]

More specifically, Spawls & Branch (1995) describe the distribution as isolated populations in Kivu and Orientale Provinces in DR Congo, southeastern Ruwenzori in Uganda and the Kakamega Forest in western Kenya.


Behavior

Capable of climbing reeds and stalks, this species is often found basking on top of flowers and terminal leaves. Mostly nocturnal.

 Feeding

Feeds on mammals, frogs, lizards and sometimes birds. Sometimes hunts for mammalian prey on the ground.



Friday, 25 November 2011

Rosy boa

The Rosy Boa (Lichanura trivirgata) is a snake of the Boidae family, one of only two members of that family native to the United States. The other is the Rubber Boa (C. bottae). Rosy Boas are native to the American Southwest, and Baja and Sonora Mexico.


Description

These small attractive snakes attain a length of 39 in (1 m) (though some specimens from the coast of California reach 4 feet) and a large adult has a body width about the diameter of a golf ball. Coloration in Rosy Boas is highly variable. The common name is derived from the rosy or salmon coloration that is common on the belly of Rosy Boas originating from coastal southern California and Baja Mexico. Most Boas do not have this ventral coloration but instead have a series of dark to orange spots on a light-colored background.

Almost all Rosy Boas have at least some trace of three longitudinal stripes, one down the center of the back, and two on the lower sides. The appearance of these stripes varies widely from extremely straight and having high contrast with the interspaces to extremely broken with almost no contrast with the interspaces. Stripe colors can be orange, maroon, rust, brown, or black. The interspaces range from shades of light to dark gray, yellow, or tan.


Geographic range

The Rosy Boa is found in the southwestern United States in the states of California and Arizona, and northwestern Mexico in the states of Baja California and Sonora. In California, the Rosy Boa ranges throughout the Colorado and Mojave deserts and also occupies the coastal areas of Los Angeles, Orange, Riverside, and San Diego counties. In Arizona, the Rosy Boa occupies the Mojave desert and the western areas of the Sonoran desert. It is absent from the eastern and northern halves of the state. In Sonora, the Rosy Boa ranges from the border with the United States south throughout the Sonoran Desert to at least as far south as Ortiz. In Baja California, the Rosy Boa is almost ubiquitous ranging throughout the entire peninsula except in areas of extremely dry or rockless desert.



Behavior

Rosy Boas spend most of their lives concealed beneath rocks and in crevices to escape the elements and natural predators. Granite outcroppings are the most common geologic association inhabited by the Rosy Boa. Less often they are found in association with volcanic or other rock types. Only in rare places do Rosy Boas inhabit rockless environments. In areas with few rocks Rosy Boas will use rodent burrows for concealment.


Rosy Boas' activity season follows local weather patterns; however, they are generally dormant during the winter, and active during the spring, summer and fall. Like all snakes, they are dependent on external temperatures to promote such normal bodily functions as digestion and gestation. Throughout most of their range the winter is too cold for these functions and the Rosy Boas go into a dormant state called brumation. The spring is breeding season for Rosy Boas, resulting in their highest rate of activity. Most Rosy Boas are encountered in spring as they leave the security of their rock piles and crevices to seek mates. Another reason Rosy Boas may be active on the surface of the ground is to find prey or new territory.


The surface activity of Rosy Boas can take place during any hour of the day, but during hot weather they are primarily nocturnal. In the spring, they are often abroad in the afternoon and early evening. In the late spring and summer, this activity period switches to from dusk to late into the night. Because most populations of Rosy Boas live in exceedingly dry habitats, their activity is often highly moisture dependent. During dry periods they remain deep underground to assist in remaining hydrated. Recent rainfall often results in a flurry of surface activity.

These snakes forage mainly for small mammals but have occasionally been known to take other prey items such as birds and lizards. Pack rats, baby rabbits, deer mice, and kangaroo rats make up a large portion of their diet. Rosy Boas are one of the slowest-moving species of snake in the world. They are unable to pursue prey and must either wait in ambush or stalk their meals. When a meal is within reach, usually a few inches, a Rosy Boa will strike with surprising speed and accuracy. Prey is secured with tiny rows of needle-sharp teeth, then suffocated through constriction.

Rosy Boas are extremely docile when encountered by humans. When disturbed they usually roll into a compact ball with the head in the center.[1] The species is not prone to bite in defense, and when human bites have occurred they have usually been the result of a feeding response with a captive animal. All Rosy Boa bites are nonvenomous. Their extreme docility and their attractive coloration have made Rosy Boas very popular with herpetoculturists.


Reproduction
Rosy Boas bear live young, about six in a brood. The newborns are about 30 cm (12 in.) in length.


In captivity
Their generally docile temperament, ease of care, and small size makes the Rosy Boa an ideal choice for a pet snake (or first boa). They are frequently captive bred, and readily feed on commercially available mice. Many color variations are available, including albinos as well as the many different subspecies that come in dozens of variations. With other species, such as corn snakes and ball pythons, dominating the majority of the market, the popularity of Rosy Boas hasn't been as high as the other more popular species.