2. XirHOCEECTJS. 9 



1. Xiphocerciis valenciennesii. 



Anolius ■\alenciennii, Gray, Cat. p. 20G. 

 Aiiolis valeucienui, Dum. iy Bihr. p. 131 ; A. iJitm. Arch. Mus. viii. 



pi. xix. fig. 2; Bocourt, Miss. Sc. Me.c, Bept. pi. xiv. fig. 1. 

 D.ictyloa (Xipliocevcus) valenciennii, Fitziny. I. c. p. 67. 

 Placopsis ocellata, Gusse, I. c. 



Anolis leucocephalus, Hulloiv. Proc. Ac. ndlad. 1856, p. 226. 

 Xiphocercus yaleuciennii, Cope, L c. 



Head large, nearlj' twice as long as broad, nearly twice as long 

 as the tibia ; forehead plane, covered with very large symmetrical 

 smooth shields ; shields of the supraorbital semicircles in contact 

 between the orbits or separated by one row of scales ; occipital 

 much longer than broad, much larger than the ear-opeijing, in 

 contact with the supraorbital shields or separated by one series of 

 scales ; five to eight large smooth supraocular scales, separated from 

 the supraorbitals by one row of granules ; canthus rostralis sharp, 

 cantlial scales four or five ; nostril just above the canthus rostralis ; 

 eight or nine upper labials to below the centre of the eye ; ear- 

 opening very small. Gular appendage very large iu the male, ex- 

 tending beyond the thorax, smaller, but nevertheless well developed, 

 in the female ; the greater portion of this appendage perfectly 

 naked ; gular scales smooth. Body strongly compressed, not crested, 

 covered with flat smooth roundish granules, largest on the flanks, 

 where they are separated by minute grains, subimbricate on the 

 belly. Limbs rather short, the adpressed hind limb reaches the 

 axilla or the shoulder ; twenty-three to twenty-six lamellae under 

 phalanges ii. and iii. of the fourth toe. Tail strongly compressed, 

 with a low crest or denticulation above ; its length does not much 

 exceed that of head and body. Male with enlarged postanal scales. 

 Cream-coloured or pale brown above, with more or less distinct 

 brown markings; lower surfaces white, the belly sometimes vermi- 

 culated with brown ; the skin of the gular appendage grey (in 

 spirits). 



Total length 191 millim. 



Head 27 „ 



Width of head 15 „ 



Body 57 ,, 



Fore limb 28 „ 



Hind limb 44 



Tibia 13 



Tail 107 



?» 



?) 



59 



Jamaica. 



a-h, c-e,f. (S , 9,& hgr. Janir.ita. P. H. Gosse, Esq. [P.]. (Types 



of I'Uicojisis ocellata.) 

 y. cj. Jamaica ? 



