704 Bulletin 47, United States National Museum. 



Chologaster avitus, JORDAN & JENKINS, Proc. U. S. Nat. Mus., 1888, 366, pi. 44, fig. 8, outlet of 

 Lake Drummond, Dismal Swamp, near Suffolk, Virginia. (Type, No. 39864. Coll. 

 Jenkins & Meek.) 



Chologaster cornutus, GILBERT, Bull. U. S. Fish Comm., vin, 1888, 227, specimens from Okefinokee 

 Swamp, Millen, Georgia; caudal fin more dusky, with little white at base. 



1045. CHOLOGASTER AGASSIZII, Putnam. 



Head 4 in body, its length scarcely greater than the greatest depth. D. 

 9 ; A. 9. Pectorals reaching little more than halfway to front of dorsal. 

 Uniform light brown ; fins somewhat speckled. Length 1 inches. (Put- 

 nam.) Subterranean streams in Tennessee and Kentucky ; not seen by us. 

 (Named for Louis Agassiz.) 



Chologaster agasslzii, PUTNAM, Amer. Nat., 1872, 30, fig., from a well at Lebanon, Tennessee. 



1046. CHOLOGASTER PAPILLIFERUS, Forbes. 



Head 3i in length. Body with ridges of tactile papillse, as in Ambly- 

 opsis. Eye above and well behind maxillary, about 6 in head; pectoral 

 reaching halfway to the dorsal. Color precisely as in Chologaster cornutus, 

 except that the middle stripe is decidedly paler than the ground color of 

 the body, but darker on the head, the change being abrupt at the oper- 

 cular margin ; caudal fin dark brown, with several vertical rows of white 

 specks or blotches running across the rays ; anterior part of dorsal 

 similar in color, but paler. Length a trifle over an inch. The species, 

 agreeing with cornutus in position of eye and plan of markings, with 

 agassizii in length of pectorals and structure of scales, is intermediate 

 in length of head, and agrees with neither in color of caudal and dorsal 

 and tint of middle band. (Forbes.) Cave Spring, Union County, Illinois. 

 (papilla, papilla; fero, I bear.) 



Chologaster papilliferus, FORBES, Amer. Naturalist, Jan., 1882, 1, cave spring in Southern 



Illinois. (Coll. F. S. Earle.) 

 Chologaster papillifer, JORDAN & GILBERT, Synopsis, 325, 890, 1883. 



322. TYPHLICHTHYS, Girard. 



Typhlichthys,GiRAR, Proc. Ac. Nat. Sci. Phila., 1859, 62, (subterraneus). 



This genus differs from Amblyopsis only in the absence of the ventral 

 fins. The body is similarly translucent, covered with papillary ridges 

 and the eyes are obsolete. The single species is of smaller size, and found 

 in the same waters, (rvfa'oc, blind ; 1%%?, fish.) 



1047. TTPHLICHTHTS SUBTERRANEUS, Girard. 



(SMALL BLINDFISH.) 



D. 7 or 8; A. 7 or 8. Head rather blunter and broader forward than 

 in A. spelceus. Mouth smaller, its cleft shorter than base of dorsal. Pec- 

 torals scarcely reaching dorsal. Onepyloricco3cum. Colorless. Length 

 2 inches. Subterranean streams of limestone regions in Indiana, Ken- 

 tucky, Tennessee, Missouri, and Alabama ; locally abundant, with Ambly- 

 opsis spelasus, but more widely diffused than the latter, (subterraneus, 

 under the earth.) 



Typhlichthys sttblerraneus, GIRARD, Proc. Ac. Nat. Sci. Phila., 1859, 62, well at Bowling Green, 

 Kentucky; (Coll. J. E. Tounglove); PUTNAM, Amer. Nat., 1872, 30, fig.; JORDAN & GIL- 

 BERT, Synopsis, 325, 1883; Carman, Bull. Mus. Comp. Zool., xvn, No. 6, 232, 1889. 



