Smith and Taylor (1950b:30) recorded this species from Sonora, Sinaloa, Nayarit, Colima, and Guerrero; these records indicate that the species probably is distributed along the Pacific coast of México southward from southern Sonora. It unquestionably occurs on the coast of Michoacán. Natives of the coastal lowlands tell of another "tortuga de la tierra" besides _Geoemyda rubida_. In the collections of the Museum of Natural History of the University of Illinois is a specimen of _Geoemyda pulcherrima_ from Mexcala in the Balsas Basin in northern Guerrero. On the basis of this specimen it is highly probable that the species also inhabits the Balsas-Tepalcatepec Basin in Michoacán. ~Pseudemys scripta ornata~ (Gray) _Emys ornata_ Gray, Synopsis reptilium, p. 30, 1831.--Mazatlán, Sinaloa, México. _Pseudemys scripta ornata_, Carr, Herpetologica, 1:135, December 30, 1938. The systematics and distribution of _Pseudemys scripta_ in México and Central America are poorly understood. Smith and Taylor (1950b:32) recorded this turtle from the Pacific lowlands of Sinaloa, Jalisco, Oaxaca, and Chiapas. This species is represented by vicarious populations throughout the Atlantic lowlands of México, northwestern México, over much of the United States, and also in Baja California. Along the Pacific coast of México the species seems to be extremely rare, or, at least, only locally abundant. Since the species has such a wide distribution, and since it occurs on the Pacific lowlands both to the north and to the south of Michoacán, it is reasonable to expect its presence on the coast of Michoacán. Inquiries among the natives living in the Balsas-Tepalcatepec Basin produced only negative evidence about the occurrence of _Pseudemys_ in the Río Tepalcatepec and Río Balsas. I suspect that the best place to search for these turtles on the coast of Michoacán is in the numerous fresh-water lagoons on the coastal plain. ~Caiman crocodilus fuscus~ (Cope) _Perosuchus fuscus_ Cope, Proc. Acad. Nat. Sci. Philadelphia, 20:203, November 9, 1868.--Río Magdalena, Columbia. _Caiman crocodilus fuscus_, Mertens, Senckenbergiana, 26:275, December 22, 1943.