AMPHIBIANS (AMPHIBIA) (Salamanders, toads, frogs, newts, caecilians, etc.)
Largest Amphibian
The largest species of amphibian is the Chinese giant salamander (Megalobatrachus davidianus), which lives in the cold mountain stream and marshy areas of northeastern central and southern China. The average adult measures 39 in in total length and weighs 24 to 28 lb. One huge individual collected in Kweichow (Guizhou) Province in southern China in the early 1920's measured 5 ft in total length and weighed nearly 100 Ib. The Japanese giant salamander (Megalobatrachus japonicus) is slightly smaller, but one captive specimen weighed 88 lb when alive and 100 lb after death, the body having absorbed water from the aquarium.
Largest Newt
The largest newt is the pleurodele or ribbed newt (Pleurodeles waltl). found in Morocco and on the Iberian Peninsula. Specimens measuring up to 15.74 in in total length and weighing over 1 lb have been reliably reported.
Largest Frog
The largest known frog is the rare Goliath frog (Rana goliath) of Cameroon and Equatorial Guinea. A female weighing 7 lb 4.5 oz was caught in the rapids of the River Mbia, Equatorial Guinea, on Aug 23, 1960. It had a snout-vent length of 13.38 in and measured 32.08 in overall with legs extended. In Dec 1960 another giant frog known locally as "agak" or "car-pnag" and said to measure 12-15 in snout to vent and to weigh over 6 lb was reportedly discovered in central New Guinea, but further information is lacking. In 1969 a new species of giant frog was discovered in Sumatra.
Largest Tree Frog
The largest species of tree frog is Hyla vasta, found only on the island of Hispaniola (Haiti and the Dominican Republic) in the West Indies. The average snout-vent length is about 3.54 in but a female collected from the San Juan River, Dominican Republic, in March 1928 measured 5.63 in.
Largest Toad
The largest toad is probably the marine toad (Bufo marinus) of tropical South America. An enormous female collected on Nov 24, 1965 at Miraflores Vaupes, Colombia, and later exhibited in the reptile house at the Bronx Zoo, New York City, had a snout-vent length of 9.37 in and weighed 2 lb 11 1/4 oz at the time of its death in 1967.
Smallest Amphibian
The smallest species of amphibian is believed to be the arrow-poison frog Sminthillus limbatus, found only in Cuba. Fully-grown specimens have a snout-vent length of 0.44-0.48 in.
Smallest Newt
The smallest newt is believed to be the striped newt (Notophthalmus perstriatus) of the southeastern US. Adult specimens average 2.01 in in total length.
Smallest Tree Frog
The smallest tree frog is the least tree frog (Hyla ocularis), found in the southeastern US,. It has a maximum snout-vent length of 0.62 in.
Smallest Toad
The smallest toad is the sub-species Bufo taitanus beiranus, first ered c. 1906 near Beira, Mozambique, East Africa. Adult specimens have a maximum recorded snout-vent length of 0.94 in.
Smallest Salamander
The smallest species of salamander is the pygmy salamander (Dermognathus wright), which is found only in Tenn, NC, and Va. Adult specimens measure 1.45-2.0 in in total length.
Longest Lived Amphibian
The greatest authentic age recorded for an amphibian is about 55 years for a male Japanese giant salamander (Megalobatrachus japonicus) which died in the aquarium at Amsterdam Zoological Gardens June 3,1881.It was brought to Holland in 1829, at which time it was estimated to be 3 years old.
Highest and Lowest
The greatest altitude at which an amphibian has been found is 26,246 in the Himalayas for a common toad (Bufo vulgaris). This species has also been found at a depth of 1,115 ft in a coal mine.
Most Poisonous Venom
The most active known venom is the batrachotoxin derived from the skin secretions of the kokoi (Phyllobates latinasus), an arrow poison frog of northwestern Colombia, South America. Only about 1/100,000th gram (0.0000004 oz) is enough to kill a man.
Longest Frog Jump
The record for three consecutive leaps is 33 ft 5 1/2 in by a female South African sharp-nosed frog (Rana oxyrhyncha) named "Santjie" at a frog derby held at Lurula Natal Spa, Paulpietersburg, Natal, Africa May 21,1977.
At the annual Calaveras County Jumping Frog Jubilee at Angels Camp, Calif, in 1975, another specimen "Ex Lax" made a single leap of 17. 6. in for its owner Bill Moniz.
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