290 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 



Family HYLID^. 



Genus CHOROPHILUS. 



Chorophilus triseeiatus. {31axim.) 



Helecetes triseriatus, Maxim, tteise Nord-Am. i. 1889, — . — Hayd. Trans. Amer. Phil. Soc, 



xii. 1862, 177. 

 Chorophilus triseriatus, Cope, Check List N. A. Bat. and Rep. 1875, 30. 



Specimens. 



1123, Ms, ter, etc. Frenchman'a River. July C, 1874. 



This small species was foand in the greatest abundance in prairie 

 pools* and streams at various points along the line, especially at French- 

 man's River, where numerous specimens were secured. It forms a con- 

 siderable portion of the food of the Eutceniw of this region. Specimens 

 are also in the Natural Museum from Colorado, New Mexico, Nebraska, 

 and Kansas. 



Family AMBLYSTOMATID^. 



Genus AMBLYSTOMA. TscJi. 



Amblystoma mavortium. Bd. 



a. MAVOR'J'IUM. 



Amlysloma mavortia, Bd. Journ. Acad. Nat. Sci. Phila. 2d ser. i. 1849, 292, 284 (New 



Mexico). 

 Amhystoma mavortium, Hallow. Journ. Acad. Nat. Sci. Phila. iii. 1858, 352. 

 Amhlystoma mavortium, Bd. P. R. R. Rep. x. 1859, Gunnison's and Beckwith's Route, 



Reptiles, 20. — Cope, Proc. Acad. Nat. Sci. Phila. 1867, 184.— Allen, Proc. Bost. 



Soc. Nat. Hist. xvii. 1874, 70.— Cope, Check List N. A. Bat. and Rep. 1875, 25. 

 Amblystoma proserpina, Bd. & GiR. Proc. Acad. Nat. Sci. Phila. 1852, 173. — Bd. U. S. 



Mex. B. Sur\r. ii. pt. ii. 1869, Reptiles, 29, pi. 35, f. 7-14. 

 Ambystoma proserpine, Hallow. Journ. Acad. Nat. Sci. Phila. iii. 1858, 354. 

 Ambystoma maculatum, Hallow. Journ. Acad. Nat. Sci. Phila. iii. 1858, 355. — Hallow. 



Proc. Acad. Nat. Sci. Phila. 1857, 215. 

 Desmiostoma maculatum, " Sager, Penins. Journ. Med. 1858, 428 ". 

 Camarataxis maculata. Cope, Proc. Acad. Nat. Sci. Phila. 1859, 123. 

 Ambystoma nebulosum, Hallow. Proc. Aca,d. Nat. Sci. Phila. 1852, 209 (Arizona). — 



Hallow. Sitgreaves'a Rep. Expl. Zuiii and Colorado R. 1853, 143, pi. 20.— Hal- 

 low. Journ. Acad. Nat. Sci. Phila. iii. 1858, 352. 

 Amblystoma? nebulosum. Cope, Proc. Acad. Nat. Sci. Phila. 1866, 300. 



h. CALIFOKNIENSE. 



Ambystoma californiense. Gray, Proc. Zool. Soc. Lond. 1853, 11, pi. 7 (Monterey). — 



Hallow. Journ. Phila. Acad. Nat. Sci. iii. 1858, 355. 

 Amblystoma mavortium subsp. californiense, Cope, Check List N. A. Bat. and Rep. 1875, 25. 



* These pools also furnished great numbers of an interesting Phyllopod, Lepidurus 

 coucsi of Packard. 



