Dipsas costaricensis Taylor [= Sibon longifrenis (Stejneger), according to Peters (Misc. Publ. Mus. Zool. Univ. Michigan, 114:192, 1960)], Univ. Kansas Sci. Bull., 34:63, pl. 7, fig. 2, October 1, 1951.

Holotype.—No. 25703, Morehouse Finca, 5 miles southwest of Turrialba, Cartago Province, Costa Rica; Edward H. Taylor; July 16, 1947.

Dipsas tenuissima Taylor, Univ. Kansas Sci. Bull., 36:771, figs. 28-29, July 15, 1954.

Holotype.—No. 31961, 15 kilometers west-southwest of San Isidro del General, San José Province, Costa Rica; Edward H. Taylor; July 10, 1952.

Dryadophis sanguiventris Taylor, Univ. Kansas Sci. Bull., 36:722, July 15, 1954.

Holotype.—No. 31978, Esquinas Forest Reserve, Las Esquinas, between Golfito and Palmar, Puntarenas Province, Costa Rica; Edward H. Taylor; September 3, 1952.

Ficimia streckeri Taylor, Copeia, 1931(1):5, March 31, 1931.

Holotype.—No. 9140, 3 miles east of Rio Grande City, Starr County, Texas; Edward H. Taylor; July 13, 1930.

Note.—Taylor (1931:5) erroneously listed the number of the holotype as 4140.

Geophis acutirostris Taylor, Univ. Kansas Sci. Bull., 36:691, fig. 3, July 15, 1954.