PARATYPE.--No. 39415 (carapace only), 8 miles east and 2 miles south of Americanos, Coahuila, Mexico; Robert W. Dickerman; May 19, 1954. ~_Pseudemys scripta taylori_~ Legler, Univ. Kansas Publ. Mus. Nat. Hist., 13:75, figs. 1-3, pls. 9-12; August 16, 1960. HOLOTYPE.--No. 46952, 16 kilometers south of Cuatro Ciénegas, Coahuila, México; John M. Legler, September 6, 1958. PARATYPES.--Nos. 46932-46951, 46953-46969, data same as on holotype. Nos. 46970-46974, 6 miles west of Cuatro Ciénegas, Coahuila, Mexico; John M. Legler; September 3-6, 1958. No. 46976, Río Chiquito, 10 kilometers south of Cuatro Ciénegas; John M. Legler; September 9, 1958. ~_Trionyx ater_~ Webb and Legler, Univ. Kansas Sci. Bull., 40:21, pls. 1-2, April 20, 1960. HOLOTYPE.--No. 46903, 16 kilometers south of Cuatro Ciénegas, Coahuila; John M. Legler, Wendell L. Minckley, and Robert B. Wimmer; September 6, 1958. PARATYPES.--Nos. 46904-46906, 46908-46912, data same as on holotype. ~_Trionyx muticus calvatus_~ Webb, Univ. Kansas Publ. Mus. Nat. Hist., 11:519, pls. 13-14, fig. 1, August 14, 1959. PARATYPES.--Nos. 47117-47119, Pearl River, 1 mile south to 4 miles north of Monticello, Lawrence County, Mississippi; Robert G. Webb; April 10, 1957. ~_Trionyx spinifera pallidus_~ Webb, Univ. Kansas Publ. Mus. Nat. Hist., 13:522, pls. 39-40, February 16, 1962. PARATYPES.--Nos. 2934, 2947, 2966, 2967, 2973, Lewisville, Lafayette County, Arkansas; R. E. McEntyre; May 1, 1926. Nos. 40175 and 40176, Lake Texoma, 2 miles east of Willis, Marshall County, Oklahoma; John M. Legler; summer, 1955. No. 50832, 4 miles southwest of Kingston, Mouth of Caney Creek, Marshall County, Oklahoma; Virgil Dowell; summer, 1954. SAURIA ~_Alopoglossus plicatus_~ Taylor [= _Ptychoglossus plicatus_ (Taylor), according to Ruibal, Bull. Mus. Comp. Zool., 106:501, 1952], Univ. Kansas Sci. Bull., 33:272, fig. 1, August 20, 1949. HOLOTYPE.--No. 23800, Morehouse Finca, 5 miles southwest of Turrialba, Cartago Province, Costa Rica; Edward H. Taylor; July 21, 1947. ~_Ameiva festiva occidentalis_~ Taylor, Univ. Kansas Sci. Bull., 38:264, fig. 66, December 20, 1956. PARATYPES.--Nos. 40545-40548, 40553-40558, Agua Buena, Cañas Gordas, Puntarenas Province, Costa Rica; Edward H. Taylor; July 25-26, 1954. Nos. 40549 and 40550, 15 kilometers west-southwest of San Isidro del General, San José Province, Costa Rica; Edward H. Taylor; August 2, 1954. ~_Anadia metallica arborea_~ Taylor, Univ. Kansas Sci. Bull., 37:542, fig. 13, October 15, 1955. HOLOTYPE.--No. 34225, Las Flores, Tenoria de Las Cañas, Guanacaste Province, Costa Rica; John Baker and Edward H. Taylor; August 22, 1952. ~_Anadia metallica attenuata_~ Taylor, Univ. Kansas Sci. Bull., 37:537, fig. 12, October 15, 1955. HOLOTYPE.--No. 34223, Pacuare, Río Pacuare, Cartago Province, Costa Rica; Edward H. Taylor; August 17, 1951.