164 IGUANID^. 



scales. Dorsal crest very low. Dorsal scales shortly mucronate, 

 the keels obliquely turned towards the vertebral line ; laterals a 

 little smaller ; ventrals nearly as large as dorsals, rounded, broader 

 than long, smooth ; forty-three to fifty-five scales round the middle 

 of the body. The adpressed hind limb reaches the eye or between 

 the latter and the ear. Tail feebly compressed, crested like the 

 back. Olive-brown or greenish above, with a more or less distinct 

 lighter latero-dorsal band, and a series of whitish spots, frequently 

 confluent into a band, from the ear to the groin ; back with or 

 without angular dark brown spots ; lower surfaces greenish or 

 whitish, uniform or black-spotted. 



millim. millim. 



Total length 155 Body 45 



Head 15 Fore limb 23 



Width of head .... 12 Tail 95 



Cuba, San Domingo. 



a. c? . Cuba. W. S. MacLeay, Esq. [P.]. 



i. 2. S.Domingo. M. Sall6 [C.]. 



c. <S . S. Domingo. 



4. Liocephalus melanochlorus. 



Liocephalus melanochlorus, Cope, Proc. Ac. Philad. 18G2, p. 184, and 

 1868, p. 122. 



Apparently very closely related to L. vittatus. Scales of the back 

 large, the keels unusually strong. Crest highest on the tail. 

 General colour light green, principally appearing above in two 

 dorsal bands and in the interspaces of a series of about ten trans- 

 verse black bands extending between them ; these become more or 

 less confluent in old males, as do also sometimes the vertical bars on 

 the sides, which are often present ; posteriorly beneath spotted with 

 greenish white ; gular region coarsely reticulated with black. 



From snout to vent 90 millim. ; tail ISO millim. 



San Domingo. 



^o'- 



5. Liocephalus personatus. 



Liocephalus personatus, Cojje, Proc. Ac. Philad. 1862, p. 182, and 



1868, p. 122. 

 ? Liocephalus trigeminatus, Cope, II. cc. pp. 183, 122. 



Upper head-scales large, striated ; nasal in contact with the 

 rostral ; supraoi'bitals in contact ; supraoculars six or seven, band- 

 like, separated from the supraorbitals by a series of small scales ; 

 parietals two pairs on one row, outer pair slightly larger than inner. 

 Sides of neck with strong angular folds ; scales imbricate, pointed, 

 keeled. Dorsal crest strong. Dorsal scales shortly mucronate, the 

 keels obliquely turned towards the vertebral line ; laterals a little 

 smaller ; ventrals nearly as large as dorsals, rounded, broader than 



