12 THE BLIND FISHES OF MAMMOTH CAVE. 
Tellkampf and Wyman are all that have ever been written on the 4 
subject of any importance, with the exception of the description : 
of the eye by Dr. Dalton, whose paper, in the “New York Medical : 
Times,” Vol. 2, p. 354, I have not seen. Prof. Poey gives a com- d 
parison of portions of the structure with that of the Cuban blind 
fishes. J 
Dr. Tellkampf proposed the name of Heteropygii* for the family — 
of which, at the time, a single species from the Mammoth Cave was 
the only known representative, and makes a comparison of the char- — 
acters with those of Aphredoderus Sayanus, a fish found only in the 
fresh waters of the United States, and belonging to the old family — 
of Percoids, but now considered as representing a family by itself, 
though closely allied to the North American breams (Pomotis), and 
having the anal opening under the throat as in the blind fish. : 
Dr. Storer} not knowing of Dr. Tellkampf’s paper, proposed — 
the name of Hypswide, for the blind fish, and placed it between — 
the minnow and the pickerel families, in the order of Malacoptery- , 
gian, or soft rayed, fishes. According to the system adopted by — 
Dr. Günther, it stands as closely allied to the minnows, Cyprino- 
dontide (many of which are viviparous and have the single ovary — 
and general character of the blind fish), and the shiners, Oyprini- 
de, of the order of Physostomi. Dr. Tellkampf, in discussing the — 
relations of the family, points out its many resemblances to the — 
family of Clupesoces, and its differences from the Siluroids, Cy- 
prinodontes and Clupeoids, with which it has more or less affinity, : 
real or supposed. Prof. Cope in his paper on the Classification of — 
Fishes} places the Amblyopsis in the order of Haplomi with the | 
shore minnows, pickerel and mud fish, and in an article on the Wy 
andotte Cave,§ he says that the Cyprinodontes (shore minnows) 
are its nearest allies. This arrangement by Prof. Cope places 
the Haplomi between the order containing the herrings and that 
containing the electric eel of South America, all included with the 
garpike, dog fish of the fresh waters (Amia), cat fishes, suckers 
and eels proper, ete., etc., in the division of Physostomi as limited 
by him. 
the advanced position of the Ber of the intestine being so different from 
the position which it has in ordina: ary fi 
hes 
Synopsis of the Fishes of North America, published in 1846. 
i ; 
§Indianapolis Daily Journal of rable 5, 1871. Reprinted in Ann. Mag. Nat 
Hist., Nov ., 1871. 
