THE HERPETOLOGY OF HISPANIOLA 209 



but their small scales are individually colored with brightest blue, 

 rose, and green, which soon fade in alcohol to muddy brown and buff. 

 The throat of the adult males is suffused with gray. The largest one 

 in our collection (U.S.N.M. No. 75919) from the mainland of Hispani- 

 ola measures 92 mm. from snout to vent and has no trace of the com- 

 plicated juvenile pattern except on the sides, where a few dark scales 

 in series are the only remainder of the transverse lateroventral bars. 



Remarks.~The occurrence of Leiocephalus schreibersii on the west- 

 ern end of Hispaniola, and of the closely related Leiocephalus inaguae 

 on Great Inagua, wliile no relatives of either are in eastern Hispaniola 

 or in Puerto Rico, is another argument in favor of the diversification of 

 the eastern and western portions of Hispaniola. At one time it is 

 evident that the western half of the island was definitely linked up 

 with the Bahamas, with Navassa, and with Cuba, while the eastern 

 half was cut off from these islands but was connected m some way with 

 Mona and Puerto Rico. 



Specimens examined. — As listed in table 35. 



LEIOCEPHALUS MELANOCHLORUS Cope 



Figures 64, 656 



1862. Liocephalus melanochlorus Cope, Proc. Acad. Sci. Philadelphia, 1862, p. 

 184 (type locality, near J^r^mie, Hayti; type in Mus. Comp. Zool.; collector. 

 Dr. F. Weinland); 1868, p. 122. — Boulenger, Catalogue of the specimens 

 of lizards in the collection of the British Museum, ed. 2, vol. 2, p. 164, 1885. — 

 Garman, Bull. Essex Inst., vol. 19, p. 49 (extr. p. 25), 1887 (J6r(5mie, Tiburon, 

 Hayti; collector, Garman). — Muller, Verh. Naturf. Ges. Basel, vol. 10, 

 pt. 1, p. 211, 1892, (Aux Cayes, Haiti; Basel Mus.). — Meerwarth, Jahrb. 

 Hamburg Wiss. Anst., vol. 18, p. 26, 1901. 



1914. Leiocephalus melanochlorus Barbour, Bull. Mus. Comp. Zool., vol. 44, 

 art. 2, p. 301; Zoologica, vol. 11, No. 4, p. 97, 1930; 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; Occ. Pap. Boston Soc. Nat. 

 Hist., vol. 8, p. 175, 1934. — Barbour and Loveridge, Bull. Mus. Comp. 

 Zool., vol. 69, No. 10, p. 289, 1929. 



Description oj a cotype. — A young male, U.vS.N.M. No. 52402 

 (formerly M.C.Z. No. 3598), collected near Jeremie, Haiti, by Dr. 

 F. Weinland. Head shields enlarged, conspicuously ridged except 

 those bordering the rostral; four scales (an internasal and three pre- 

 frontals) in a line between the rostral and the beginning of the supra- 

 orbital ring ; the prefrontals and internasals embracing a medial series 

 of seven scales, the fu-st one large and in contact w^th the rostral 

 thus widely separating the internasals, two single ones following, 

 and lastly a patch of four; prefrontals separated from the canthals 

 by a few fairly large scales; two can thai scales, the first one very 

 short and wide, the second much longer, followed by five superciliaries, 

 the first three of which are exceedingly long and narrow and over- 

 lapping, the last two rather small; sLx bluntly ridged supraoculars, 



