NO. 7 TIl'.KPF.T(H.()i;iC.\l. (OI.I.IH riONS COCHRAN 29 



lo correspond to the verticils of enlarged and hij^hly spinose scales; 

 I'dur rows of small rectangular scales between the liftli and sixth verti- 

 cils ; upper surface of limbs with slit^htly imbricated, keeled, posteriorly 

 pointed scales which are consideral)l3' larger than the body scales ; on 

 the upper arm about 9, on the lower arm about 7 (jf these scales to the 

 vertical diameter of the tympanum ; the scales on the outer tibia the 

 largest, spinose, hexagonal, about four to the vertical diameter of the 

 tympanic membrane ; 18 and 20 femoral pores arranged in a single 

 row ; inner side of second toe with one comb, of third toe with two 

 combs each consisting of three prominent and two small lol)es ; tail 

 slightly compressed. 



Color {in alcohol). — Head and scales of crest dull pea-green; skin 

 of upper parts mouse-gray to dull olive-green with a very indistinct 

 fine reticulation of lighter hue ; skin of lower parts dull sage-green ; 

 under surfaces of feet and tail dark olive-buff. 



Dlniensions. — Head to posterior border of ear, 64 mm ; width of 

 head, 44 mm ; vertical diameter of tympanum, 1 1 mm ; head and body, 

 300 mm ; tail (reproduced), 260 mm. 



I'ariatiaii. — There are five paratypes (U.S.N.M. nos. 87213-17), 

 four of them adult females, and the fifth a very young one of in- 

 determinate sex, all taken at the same time and place as the type 

 specimen. The extreme variations are given in the specific diagnosis. 

 In only one specimen do the nasals fail to touch ; in this animal the 

 inner border of each nasal plate is cut oft' by a suture, so that there are 

 two small internasals abnormally formed. The femoral pores are 

 rather low in numl)er ranging lietween 16 and 20 in the present series, 

 and averaging 17.9 for all. The only lizard with an approximately 

 complete tail has a head and body length of 250 mm, the tail with tip 

 missing measures 320 mm. The coloration in the adult females is much 

 like that of the ty])e. The young has a few light transA'erse dorsal 

 saddles outlined with a darker tone. 



Relationships. — The sulispecies from Booby Cay is obviously a link 

 between the typical carinata from Turks Island and nuchalis from 

 Fortune Island. Booby Cay, east of Mariguana Cay, from which the 

 new subspecies was collected, is just about midway between the other 

 two type localities. 



Cyclura cariiiafa proper may be readily distinguished from C. carin- 

 ata bartschi by a combination of several characters. True carinata has 

 the nasals separated by a good-sized wedge-shaped scale; in bartschi 

 the nasals are ordinarily in contact, agreeing in this respect with 

 nuchalis. The new subspecies has as a rule more scale-rows between 

 the caudal verticils, as well as larger tibial scales, more scales in the 



