NATURAL SCIENCES OF PHILADELPHIA. 343 



and femora coarsely areolated. Fingers one-fourth, toes more than half 

 webbed. Length of head and body 1 in. 5 lin. ; of hinder extremity 1 in. 

 9 lin. Above greenish blue, darkest on the head ; beneath yellowish. 



Crumenifera p u s i 1 1 a Cope. 



Fam. Polypedatidae : characters those of Hyperolius, except in the presence 

 of a large vocal vesicle, which is prolonged posteriorly and bound beneath by 

 a median frenum, on each side of which a plicate pouch projects deeply into 

 the vesicular cavity. 



Head small, muzzle short, truncate ; canthus rostralis concave. Tympanum 

 concealed. Tongue obovate, extensively free and deeply notched. Skin above 

 smooth ; of the abdomen transversely areolate ; of the femora smooth. Fingers 

 one-fourth, toes three-fourths webbed. Many granulations about the angle 

 of the mouth. Length of head and body 10 lines ; of hinder extremity 14 

 lines. Color (in alcohol) pale straw color ; a faint brown line on the canthus 

 rostralis. 



It may be mentioned in this connection, that the genus Heteroglossa of 

 Hallowell is a Polypedatid, not a Ranid as has been hitherto supposed. The 

 statement regarding mandibular teeth, " nine in the lower jaw," should be 

 read "none in the lower jaw." It differs from Hyperolius in the less develope- 

 ment of the digital expansions and greater tenuity of the median attachment 

 of the tongue. 



Neurergus crocatus Cope. 



Of the family Salamandridse of the British Museum Catalogue,* and sub- 

 family Tritonime (Pleurodelidcc Gray, Proc. Zool. Soc, 1858, 137), and second 

 section, where the fronto-temporal arch is replaced by a ligament. There is 

 a line of pores on the inferior lateral region ; paratoids present, small ; skin 

 rough ; tail much compressed ; tongue free laterally and posteriorly. 



This genus resembles Hemisalamandra (Duges not Cope ; Pyronicia Gray 

 part.) in every particular except the form of the tongue; in this it is similar to 

 Euproctus and Glossoliga ; it has not the fronto-temporal arch of these, 

 nor the os quadrato-jugale of the latter. Lissotritou differs in wanting para- 

 toids. The head is depressed as in Salamandra maculosa, but the muzzle is 

 more rounded, as in Amblystoma. The eyelids are slightly developed. The 

 palatine teeth are in two widely divergent series, whose angle of convergence 

 is opposite to the posterior borders of the interior nares. The latter are widely 

 separated. The skin of the sides is rather corrugated. The digits are all 

 depressed, without fringe and rather elongate ; the third and fourth posterior 

 are equal. The anterior extremity appressed, extends to the heel of the ap- 



* The system adopted by Dr. Gray in the work alluded to, ia evidently the true one. 

 The separation of the Spelerpine from the Amblystomidae as a group of equal rank with 

 it, as proposed by the author of the present notice, is unnatural. Dr. Gray's later 

 arrangement of the Salamandrida? (Salamandrina Cope) supplies a grrat desideratum, 

 which the author attempted later and in ignorance of the menv>ir of the English savant. 



On reviewing my former work in connection with the new light furnished by Dr. Gray, 

 the following seems to be the nearest approximation to truth to which I can arrive at 

 present : 



Tritonina? {Triiones Cope, PleurodelidcE Gray.) Genera Pleurodeles, Glossoliga, No- 

 tophth.ilma (this genus I now believe to be distinct from the next,) Cynops (incl. Taricha 

 Gray), Euproctus (incl. Calotriton Gray), Lophinus Raf. (incl. Ommatolriton Gray, equiva- 

 lent to Triton, lOmmatolriton Cope, exclus.T. a 1 pest r is), Lissotriton (wants the para, 

 toids of Hemisalamandra; is not characterized by the freedom of the tongue posteriorly ;* 

 includes Hemitritnn Duges, Gray, a 1 p e s t r i s, in which I find a lateral line of pores,t) 

 Neurergus, Hemisalamandra (Triton ^Triton Cope, Pyronicia Gray,) Triton {Hemisala- 

 mandra Cope) : ten genera. 



* As stated Proc Acad. Nat. Sci., 1859, p. 127. 



(" In specimens labelled by Bonaparte; they are stated by Dr. Gray to be wanting, 



1862.] 



