24 



proceedhntgs of the national museum 



VOL. 73 



Coloration. — Cope, in his original description, says: "The color is 

 apparently green in life, punctuated with blackish brown. The punc- 

 tulations arrange themselves into a row of median dorsal spots, and 

 in three of the specimens into transverse bands near the middle of 

 the sides of the abdomen. Tail with broad blackish rings." 



RemarJcs. — This species grows to be as large as any of the Cteno- 

 saurs, a large male specimen, from Cleofas Island, measuring over 

 1,000 millimeters from tip of rostrum to tip of tail. The food of this 

 species consists largely of the leaves of trees and smaller plants. 



Dr. E. W. Nelson,^^ who collected extensively in Mexico, found 

 that this species was "rather common, living mainly in hollow trees 

 and in brushy places." The highest elevation at which he collected 

 the species was 500 f ee^ 



Material examined. — 



CTENOSAURA PECTINATA (Wiegmann) 



Plates 7,8, 9, 10, 11 



Cyclura pectinata Wiegmann, 1834, Herpt. Mex., pi. 2, p. 42. — Dum:6ril et 

 BiBRON, 1837, Erpet. Gen., vol. 4, pp. 217-221.— Fitzinger, 1843, Syst. Rept., 

 p. 56.— Cope, 1886, Proc. Acad. Nat. Sci. Philadelphia, p. 124.— Bocoxjrt, 1870, 

 Miss. Scien. Mex., vol. 3, Reptiles, p. 140. — Cope, 1871, Proc. Acad. Nat. Sci. 

 Philadelphia, p. 216. — Garman, 1884, Bull. Essex Institute, vol. 16, p. 19. — 



2> Nelson, E. W., Chief of the U. S. Bureau of Biological Survey, supplied his field notes on this genus. 



