REPTILIA. 311 



Stejneger, however, with an enormous series of Porto Rican specimens, empha- 

 sizes the great variability in coloring which he finds. 



Ameiva alboguttata Boulenger. 



Boulenger, Jahresb. Naturw. verein Magdeburg, fur. 1894-1896, 1896, p. 112. Stejneger, Rept. 

 U. S. nat. mus. for 1902, 1904, p. 618, fig. 67-72. 



A species evolved through the isolation on Mona Island of individuals simi- 

 lar to those which gave rise, on Porto Rico, to A. exul. 



Ameiva lineolata Dumeril et Bibron. 

 Dumeril et Bibron, Erp6t. gen., 1839, 5, p. 119. Boulenger, Cat. lizards Brit, mus., 1885, 2, p. 349. 



A beautiful species, confined to Haiti, where good series were collected by 

 Dr. Weinland, near Jeremie, and by Mr. Frazar, near Puerto Plata, at the oppo- 

 site extreme of the island. This would suggest that it occurs widely spread. 



Ameiva polops Cope. 

 Cope, Proc. Acad. nat. sei. Phila., 1862, p. 66. Boulenger, Cat. lizaids Brit, mus., 1885, 2, p. 350. 



A well-defined species, confined to the island of St. Croix. 



Ameiva wetmorei Stejneger. 

 Stejneger, Proc. Biol. soc. Wash., 1913, 26, p. 69. 



This species so recently discovered stands directly with the lineolata-polops 

 group and serves to bridge the long supposed discontinuity of the range of these 

 allied species. The finding of this important lizard as Stejneger says "illustrates 

 once more the fortuitous nature of reptile collecting." Porto Rico, the island 

 whence this species comes was of all the Antilles presumably the best known. 



Ameiva corvina Cope. 

 Cope, Proc. Acad. nat. sci. Phila., 1861, p. 312. Boulenger, Cat. lizards Brit, mus., 1885, 2, p. 358. 



The type of this species is a single specimen from the island of Sombrero 

 (M. C. Z., No. 5,532). It has since been taken upon Anguilla Island, whence 

 the British museum had specimens (Boulenger, he. tit.). Garman (Bull. Essex 

 inst., 1887, 19, p. 10) mentions that between the type and specimens "from 

 Haiti there is apparently little difference." This is perfectly true; but there 

 can be no doubt that M. C. Z., No. 3,616, four specimens said to have been 

 taken at Jeremie, Haiti, by Weinland, are really not from Haiti. The catalogue 

 refers to their having had an "old number"; and probably in the process of re- 



