PARATYPES.--No. 34224, Moravia de Chirripó, Cartago Province, Costa Rica; Edward H. Taylor; June 26, 1952. ~_Anolis achilles_~ Taylor, Univ. Kansas Sci. Bull., 38:153, fig. 43, December 20, 1956. HOLOTYPE.--No. 40634, La Palma, San José Province, Costa Rica; Edward H. Taylor; June 20, 1954. ~_Anolis allisoni_~ Barbour, Proc. New England Zool. Club, 10:58, July 26, 1928. PARATYPE.--No. 47167, Coxen Hole, Ruatan Island, Honduras; Thomas Barbour; 1928. NOTE.--Received in exchange; formerly this specimen was Museum of Comparative Zoology No. 26737. ~_Anolis aquaticus_~ Taylor, Univ. Kansas Sci. Bull., 38:141, fig. 39, December 20, 1956. HOLOTYPE.--No. 34276, Palmar, Puntarenas Province, Costa Rica; John Baker; September 3, 1952. PARATYPES.--Nos. 34277 and 34278, Golfito, Puntarenas Province, Costa Rica; Edward H. Taylor; September 3, 1952. ~_Anolis biscutiger_~ Taylor, Univ. Kansas Sci. Bull., 38:81, fig. 19, December 20, 1956. HOLOTYPE.--No. 40771, Golfito, Puntarenas Province, Costa Rica; Edward H. Taylor, September 4-8, 1952. PARATYPES.--No. 40764, 10-15 kilometers west-southwest of San Isidro del General, San José Province, Costa Rica; Edward H. Taylor; July 10, 1952. Nos. 40766 and 40768, Palmar, Puntarenas Province, Costa Rica; John Baker and Edward H. Taylor; September 2, 1952. Nos. 40769, 40770, 40772-40774, data same as holotype. NOTES.--Taylor (1956:81) erroneously listed 40769, 40770, 40772-40774 as being from Palmar, instead of Golfito; paratypes 40765 and 40767 have been exchanged with the Museum of Comparative Zoology. ~_Anolis humilis marsupialis_~ Taylor, Univ. Kansas Sci. Bull., 38:97, fig. 23, December 20, 1956. HOLOTYPE.--No. 40893, 15 kilometers west-southwest of San Isidro del General, San José Province, Costa Rica; Edward H. Taylor; July 14, 1952. PARATYPES.--Nos. 40889, 40890, 40892, 40895 and 40896, data same as on holotype. NOTE.--Paratypes 40891 and 40894 listed by Taylor (1956:97) have been exchanged with the Museum of Comparative Zoology. ~_Anolis nelsoni_~ Barbour, Mem. Mus. Comp. Zool., Harvard, 44:287, March, 1914. PARATYPE.--No. 47168, Swan Island, Honduras; George Nelson; March, 1912. NOTE.--Received in exchange from the Museum of Comparative Zoology. ~_Anolis woodi attenuatus_~ Taylor, Univ. Kansas Sci. Bull., 38:118, fig. 32, December 20, 1956. HOLOTYPE.--No. 34257, Isla Bonita, Heredia Province, Costa Rica; Edward H. Taylor; July 29, 1947. PARATYPE.--No. 34256, data same as holotype. ~_Aristelliger nelsoni_~ Barbour, Mem. Mus. Comp. Zool., Harvard, 44:258, March, 1914. PARATYPE.--No. 47169, Swan Island, Honduras; George Nelson; March, 1912. NOTE.--Received in exchange; this specimen formerly was Museum of Comparative Zoology No. 9602. ~_Crotaphytus collaris auriceps_~ Fitch and Tanner, Trans. Kansas Acad. Sci., 54:553, December, 1951. HOLOTYPE.--No. 29934, 3.5 miles north-northeast of Dewey, west side of Colorado River, Grand County, Utah; Henry S. Fitch; June 28, 1950.