TY - ART TI - American Museum novitates / Changing preference for substrate color by reproductively active mosquitofish, Gambusia affinis (Baird and Girard) (Poeciliidae, Atheriniformes) — Illustration, Page 21 PY - 1969 UR - https://www.biodiversitylibrary.org/page/63006821 ID - page-63006821 ER -