240 



REPORT OF NATIONAL MUSEUM, 1898. 



with brown, belly and lower surfaces of limbs with round dark-brown 

 spots. Foot short, sole uot spinous. 



Length from end of muzzle to gular fold, 160 mm. ; from mastoid to 

 mastoid, 75 mm.; from edge of fold to vent, 435 mm.; vent to end of 

 tail, 825 mm. ; posterior extremity, 333 mm. 



Cyclura hetnilopha Cope. 



Catalogue 

 No. 



12651 

 12652 

 21460 



Number 



of speci- 



rueus. 



Locality. 



Cape St. Lucas, L. Call 



fornia. 

 La Paz, L. California. . . 



....do 



(?) 



When 

 collected. 



Peb.— , 1882.. 

 Feb.— ,1882.. 

 (?) 



From whom received. 



J. Xautus . 



L. Belding. 



do 



(?) 



Nature of 

 specimen. 



Alcoholic type. 



Alcoholic, 

 do. 

 do. 



This species was known to De Blainville as long ago as 1835, and he 

 gives a figure of it. He and Bocourt, in his fine work on the reptiles 

 of Mexico, regarded it as the Lacerta acanthura of Shaw.^ This can 

 not be correct, as Shaw distinctly states that the dorsal crest of his 

 species extends to the rump. It is probably one of the species of the 

 next section (II) of the genus, but whicli one I am unable to ascertain. 



CTENOSAURA MULTISPINIS Cope. . 



Ctenosaura multispinis Cope, Proc, American Philosophical Society, XXIII, 1885, 

 p. 267. 



Head elongate, flat above, muzzle narrowed; nostril in the second 

 third of the length to the orbit. Three scales on canthus rostralis, each 

 deeper than long. Seven flat scales across muzzle between anterior 

 angles of orbits. Two rows between supraorbital series. Scales above 

 temporal muscles ratlier large, weakly keeled. Five series of infralabial 

 plates, not separated by smaller ones. Dorsal crest rather elevated 

 in adult, terminating at the rump. Median caudal crest composed of 

 conical scales, beginning above the posterior margin of the femora. 

 Tail cylindrical at base, covered by whorls of prominent scales with 

 conical points which project strongly and which are separated by one 

 row of smaller flat scales on the upper half of the tail. On the inferior 

 side of the tail the whorl rows are separated by two intervening rows, 

 which are just like them, having a keel and a mucronate apex. Beyond 

 the middle of the length (end lost) the tail is strongly compressed, but 

 whether this due to shriveling on drying 1 am not sure. Median series 

 of spinous scales uninterrupted. The abdominal scales are larger than 

 the dorsal, which are longer than the lateral scales; all are subquad- 

 rate, and none are keeled. 



Seven femoral i^ores. Color, above and below, black. 



Measurements. — Length from end of muzzle to vent, -J55 mm. ; length to 

 line of axilla, 125 mm. ; length to line of auricular meatus, 62 mm. ; width 



Zoology, III, 1806. 



