252 Trans. Acad. Sci. of St. Louis. 
If the same proceeding could be resorted to in this State, it 
would furnish additional information so desirable in this 
particular branch of science. 
CLASS BATRACHIA. 
Order Urodela. 
FaMILy SIRENIDAE. SIRENS. 
1. Siren Lacertina. (Linn.) Mud-e 
Found in lakes and sloughs near eae Spring, St. Clair County, Il. 
This animal is rather scarce and is becoming more so, as its abodes have 
been drained in the last few years 
FaMILy PROTEIDAE. WaTER DOGS. 
2. Necturus Maculatus. (Raf.) Mud-puppy, Water-d 
Common in the Mississippi and Merrimac rivers, aa in the lakes and 
ponds adjoining the former, in St. Clair County, Ill., and Madison County, 
l., which are inundated nearly every spring. 
During early spring and late fall they leave the deep water to approach 
the shores and are then often caught with hook and line by fishermen, 
who dread them, claiming that they are very poisonous, although the fact 
is, they are as harmless as a frog. hey are commonly called ‘* Water- 
dogs” on account of their gills on the side of the neck, which look like 
ears when the animal is out of water. I have kept two of them for sev- 
eral months in an aquarium, but one morning found them both dead through 
suffocation, owing to the larger one, some fourteen inches long, having 
more than half swallowed the smaller one, which was about ten inches long. 
AMBLYSTOMIDAE. SALAMANDER. 
3. Amblystoma Microstomum. (Cope.) Small-mouthed Salamander. 
This animal is found sparingly in spring, vader rocks and fic at Cliff 
Cave, St. Louis County; also near Bluff Lake, St. Clair County, I 
4, ae a Tigrinum. (Green.) Tiger Salamander. 
th 
long as ten inches. Found also in St. Clair and Madison Counties, Ill. 
FAMILY PLETHODONTIDAE. 
Plethodon Glutinosus. (Green.) Slimy Salamander. 
arte species is common in spring. It is usually found in the oe of 
bluffs, under rocks and logs near springs and small creeks. Toward the 
middie of summer when the weather becomes very hot they usually Sai 
pear. Found at Cliff Cave, St. Louis County and St. Clair County, Ill. 
} 6. Spelerpes Longicaudus. (Green.) Long-tailed or Cave Salamand 
ae This is another species also quite common in the same areousaings as 
‘the last one. ee successful in finding one of these 
