204 BULLETIN 17 7, UNITED STATES NATIONAL MUSEUM 



(P. Upper surface of head conspicuously spotted; throat in 



adult male dark bluish black with white spots.p. altavelensis (p. 220) 

 6^. Frontals and prefrontals ridged. 



c^ Throat, chin, lips, and sides of head black in adult 



male p. personatus (p. 212) 



c^. Throat not solid black in adult male. 



d>. Hindleg reaching to between shoulder and ear p. scalaris (p. 225) 



(P. Hindleg reaching to between ear and eye. 



e^. Scales relatively larger, 10-14 in a head length in adult. 



fK Mental shield of adult male solidly edged with 



black or brown. 



g^. Remainder of throat pale china blue, with a few 



very minute pale-brown spots confined mostly 



to single scales p. raentalis (p. 228) 



g^. Remainder of throat and chest very heavily 

 spotted with large brown spots in about a dozen 



transverse series p. Ivmatus (p. 231) 



p. Mental shield not solidly edged with black. _ p. beatanus (p. 234) 

 e^. Scales relatively smaller, 14-16 in a head length. 

 p. Inner parietals about two-thirds as large as 



outer p. vinculum (p. 236) 



p. Inner parietals larger than outer ones p. louisae (p. 239) 



LEIOCEPHALUS SCMREIBERSn (Gravenhorst) 



Figures 64, 65a 



1826. Tropidurus schreibersii Fitzinger, Neue Classification der Reptilien, p. 

 49 (from San Domingo; nomen nudum). 



1838. Pristinotus schreibersii Gravenhorst, Nova Acta Acad. Caes. Leop. -Carol., 

 vol. 18, pt. 2, p. 739, pi. 54, figs. 15, 16 (type locality, San Domingo; type in 

 Breslau Mus.). 



1868. Liocephalus schreibersii Cope, Proc. Acad. Nat. Sci. Philadelphia, vol. 20, 

 p, 123 (Mus. Leyden). — Boulenger, Catalogue of the specimens of lizards 

 in the collection of the British Museum, ed. 2, vol. 2, p. 162, 1885 (S. Do- 

 mingo). — Fischer, Jahrb. Hamburg Wiss. Anst., vol. 5, p. 29, 1888 (Gonaives, 

 Hayti; collector, H. RoUe). — MtjLLER, Verh. Naturf. Ges. Basel, vol. 10, pt.. 



1, p. 211, 1892 (Gonaives, Hayti; Basel Mus.). — Meerwarth, Mitth. 

 Naturh. Mus. Hamburg, vol. 18, p. 26, 1901. 



1914. Leiocephalus schreibersii Barbour, Mem. Mus. Comp. Zool., vol. 44, No. 



2, p. 301 (part) (Manneville, Haiti); Zoologica, vol. 11, No. 4, p. 97, 1930 

 (part); vol. 19, No. 3, p. 120, 1935; Bull. Mus. Comp. Zool., vol. 82, No. 2, 

 p. 135, 1937.— Cochran, Proc. U. S. Nat. Mus., vol. 66, art. 6, p. 9, 1924; 

 Proc. Biol. Soc. Washington, vol. 41, p. 54, 1928; Dec. Pap. Boston Soc. Nat. 

 Hist., vol. 8, p. 179, 1934. — Mertens, Senckenbergiana, vol. 20, No. 5, 

 p. 338, 1938: Publ. Inst. Cient., Dominico-Alemdn, vol. 1, p. 88, 1939.— 

 BoKER, Publ. Inst. Cient. Domfnico-Alemdn, vol. 1, p. 18, 1939. 



Descriptio7i.—\] .S.N .M. No. 59130, a young male from Thomazeaii, 

 Haiti, collected by J. B. Henderson and Dr. Paid Bartsch on April 1, 

 1917. Head shields large, ridged except those bordering the rostral; 

 four scales (an internasal and three prefrontals) in a line between the 

 rostral and the beginning of the supraorbital ring; prefrontals and 

 internasals embracing a medial series of two scales, the first the 

 smaller and not touching the rostral; prefrontals separated from the 



