10 [FEBRUAE.Y, 



The following notes are somewhat more precise than those of the former de- 

 scription. 



Sub. fam. PLETHODONTID^. 

 Gen. Aneides, Baird. 

 Char. Head large, swollen at the temples, snout angular, ,eyes very prominent; 

 tongue obcordale, more or less truncate posteriorly, attached in front, and along 

 the middle, sides quite free, quite free posteriorly, but less so than at the sides ; 

 maxillary teeth greatly developed, especially those of the lower jaw, which are 

 spear-shaped, sharp-pointed, more or less convex anteriorly, concave posteriorly, 

 with a ridge in the middle, about f of a line in length ; vomerine teeth in two 

 convergent rows, behind the internal nares meeting posteriorly, their convex 

 surfaces presenting inward* ; sphenoidal teeth very numerous, sharp pointed, 

 thickly set like a brush in two rows, closely in contact in the anterior third, poste- 

 riorly a very narrow linear interspace, not enlarged behind; in the original 

 specimen, this narrow interspace is not so distinct, so that they might almost 

 with propriety be described as a single row ; extremities slender ; fingers and toes 

 slightly compressed, free ; 1st finger much shorter than 4th ; 2d shorter than 

 3d ; 1st toe much shorter than 5th ; 2d than 3d ; 3d and 4th of equal length ; 

 skia smooth, costal grooves well marked, twelve or thirteen in number, tail round, 

 tapering to a point, very slightly compressed at tip, about same length as head, 

 neck and body. 



Aneides lugubkis. 



Syn. Sal. lugubris, Hallowell, Proceed. Acad. Nat. Sci., vol. iv. p. 126. 

 Aneides lugubris, Baird, Iconographic Encyclopoedia, vol. ii. 1859, 1st edition, 

 p. 256. Taricha lugubris? Gray, Cat. Br. Ampb., p. 26, No. 2. 



Char. Color dark olive above, yellow below, without spots or other markings, 

 a row of small, circular spots on each side. 



Dimensions. Length 4^ inches. 



Habitat. Monterey and San Francisco, Upper California. Two specimens in 

 Mas. Acad. Nat. Sci. Presented by Dr. Townsend and Mr. Heermann. 



The U. atretoderes may be subdivided into the following groups, which will 

 perhaps facilitate their study. 



a. With longitudinal teeth. 

 1. SALAMANDRID^. European. 

 Tongue rather large, attached iu front and posteriorly, free at the sides ; toes 

 45. 

 1 gen. Salamandra. 3 sp. maculosa, Corsica, atra. 



2. SEIRANOTID^. European. 



Tongue well developed, oblong, rounded in front, broader and almost truncate 

 posteriorly, //-ce in its posterior half, less so laterally, attached in front, toes 4 4. 

 1 gen. Salamandrina. 1 sp,. S. perspicillata. 



3. PLEURODELID.'E. N. African and S. European. 



Tongue small, B-ahc\TQ,n\&T, free posteriorly, and at the sides, attached in front; 

 toes 45; ribs not rudimentary, but much devgloptd, perforating even the in- 

 teguments. 



4. TR1T0NIDJ3. European, N. American, Asiatic. 



Tongue fleshy, papillose, well developed, attached in front and behind, free a: 

 the lateral edges ; toes 4 5. 



* The true position of this animal is among the Plethodonts, that of Taricha 

 the teeth of which are in two slender hmgiludinal series, comnencing on a line with 

 the inferior margin of the internal nares, about midway between them, but diverging 

 widely posteriorly, among the Trilonidce. 



