CAHN, Phyllis H. Comparative optic development in Astyanax Mexicanus and in two of its bllind cave derivatives / Phyllis H. Cahn. -- New York : [s.n.], 1958 - 112 p. il. -- (Bulletin of the American Museum of Natural History ; 115, 2). Subjects--Topical Terms: Peces Universal Decimal Class. No.: 598