Aphyonus mollis G. and B., 955 fathoms, and Alexeterion parfaiti Vaillant, 5,005 metres, are the only ones found in the neighborhood of America. 3. The Lophiidæ are represented by Mancalias Schiifeldtii Gill, from a depth of 372 fathoms. Other blind species are found in foreign waters, while others with small eyes are found in American waters. The majority of deep-sea fishes have well-developed eyes.
The shore fishes have their blind representative in Typhlogobius californiensis St., which lives under rocks between tide water on the coast of southern and Lower California. I have elsewhere described the habits of this form. In the fresh-water caves of Cuba two blind fishes—Stygicola denta Poey and Lucifuga subterraneus Poey—have been found. Their relatives live in the ocean, Brotula barbata in Cuban waters; some of the others are blind and inhabitants of deep water.
The inland fresh-water fishes are represented by Gronias nigrilabris Cope, a catfish from cave streams of eastern Pennsylvania, and by members of the Amblyopsidæ, concerning which a more detailed account is given below.
The Amblyopsidæ.—The Amblyopsidæ are a small family of fishes allied to the Cyprinodontidæ. They are found in the Mississippi drainage basin and in certain southeastern streams. Three of the members of the family, Fig. 2.-The larva and adult of the Missouri cave salamander (Typhlotriton). the Chologasters, are provided with well-developed eyes, while four other species are cave fishes in the strictest sense, being blind and colorless. The distribution of the different members of the Amblyopsidæ is as follows:
Chologaster cornutus is found in lowland swamps of the Southern States from the Dismal Swamp to the Okefinokee Swamp. Chologaster Agassizii is found in subterranean streams in Tennessee and Kentucky. Chologaster papilliferns has so far been found only in southwestern Illinois.
Amblyopsis is abundant in the cave streams of the Ohio Valley south of the east fork of White River.
Typhlichthys subterranens inhabits the region south of the Ohio