48. AMBLYOPSIDiE CHOLOGASTER. 325 



fins. The species are of smaller size, and are found in the same waters. 



(ry^^Aoc, blind ; r/Oh:;, fish.) g 



521. T. subtcrranoMS Gnl. 



Colorless. Head rather blunter and broader forwards than in A. 

 spelccus. Mouth smaller, its cleft shorter than base of dorsal. Pecto- 

 rals scarcely reaching dorsal. One pyloric ccecum. D. 7 or 8; A. 7 

 or 8. L. 2 inches. Subterranean streams of Kentucky, Tennessee, and 

 Alabama. 



(Girard, Proc. Acad. Nat. Sci. Pbila. 1859, G2; Putnam, Amor. Nat. 1872, 30, fig.) 

 155.— CI10L0GAST£R Agassiz. 

 (Agassiz, Amer. Journ. Sci. Arts, xvi, 135, 1853: type ChoJogastcr cornutus Ag.) 



This genus has the general characters of Amblyopsis^ but differs in 

 the absence of ventral lins and in the fully developed condition of the 

 eyes, which are small and lateral. The species are not i)ellucid, but 

 colored like ordiuarj^ fishes. No papillary ridges. Pyloric coeca 2. 

 Ditches and cave-streams. (;fai/^o<r, maimed j /afi-r^y?, belly; in allusion 

 to the abortive ventrals.) 



522. C. cornMtMS Ag. 



Yellowish brown, dark above; sides with three dark longitudinal 



stripes, becoming dots on the tail; middle rays of caudal fin dark; 



fins otherwise uncolored. Mouth moderate, oblique, the maxillary not 



extending to the eye. Pectorals reaching nearly to front of dorsal, 



perfect, small. Snout with two horn-like projections. Head 3J ; depth 



4i. D. 8 or 9 ; A. 8 or 9. L. 2 J inches. Ditches in a rice-field, Wacca- 



maw, S. C. (Putnam.) 



(Agassiz, Amer. Journ. Sci. Arts, 1853, 135; Giintlier, vii, 2; Putnam, Amer. Nat. 

 1872, 30.) 



523. €. agassixi Putnam. 



Uniform light brown; fins somewhat speckled. Head 4 in body, its 

 length scarcely greater than the greatest depth. Pectorals reaching 

 little more than half way to front of dorsal. D. 9; A. 9. L. 1| inches. 

 {Putnam.) Subterranean streams in Tennessee and Kentucky. 



(Putnam, Amer. Nat. 1872, 30, fig.) 



A specimen of Chologaster obtained by Prof. S. A. Forbes in a ca\'e- 



stream of Southern Illinois does not agree well with either of the above 



species. The following descrij)tion has been fitruished us by Professor 



Forbes : 



Tlic head is 7*'"™ long, and the body, -without head or tail, 19""^. Head in lengtli, 

 therefore, 3^ times. The eye is above and well behind the maxillary, and goes about 



