37. cycLURA.—88. crenosauRA. 195 
f- Ye. —-? (Type of C. nubila.) 
q hee aed — : Haslar Collection. 
a ., stuffed. —! 
i, Skull. — Sir E. Belcher [P.]. 
38. CTENOSAURA. 
Cyclura, part., Harlan, Journ. Ac. Philad. iv. 1824, p. 250; Wiegm. 
Herp. Mex. pp. 15, 41; Dum. § Bibr. iv. p. 214; Fitzing. Syst. 
Rept. p. 56, 
Ctenosaura, Wiegm. Isis, 1828, p. 3871; Fitzing. 1. e. 3 Gray, Cat. Liz. 
p. 191; Bocourt, Miss, Sc. Mex., Rept. p. 186. 
Enyaliosaurus, Gray, J. c. p. 192. 
Tympanum distinct. Body scarcely compressed ; a dorsal crest ; 
dorsal scales small. Upper head-scales small, A very strong trans- 
verse gular fold ; no gular pouch. Digits compressed, with keeled 
lamelle inferiorly. A short series of femoral pures, Tail more or 
less spinose. Lateral teeth tricuspid; pterygoid teeth. A small 
sternal fontanelle. A single poststernal rib. 
Central America. 
Synopsis of the Species. 
Lateral caudal spines not stronger 
than upper........... eiuenins Bed 1. acanthura, p. 195. 
Lateral caudal spines the strongest ; 
tail feebly depressed at the base .. 2. hemilopha, p. 197. 
Lateral’ caudal spines the strongest ; 
tail strongly depressed at the base. 3. quinquecarinatu, p. 198. 
1, Ctenosaura acanthura. 
Ctenosaura acanthura, Gray, Cat. p. 191. 
pectinata, Gray, lc. 
Lacerta acanthura, Shaw, Zool. iii, p. 216. 
Uromastix acanthurus, Merr. Tent. p. 56. 
Cyclura teres, Harlan, Journ. Ac. Philad. iv, 1824, pp. 246, 250, 
pl. xvi.; Wiegm. Herp, Mex. p. 43. _ 
acanthura, Gray, Phil. Mag. (2) iii. 1827, p. 55; Dum. & Bibr. 
iv. p. 222; Sumichrast, Arch. Sc. Phys, Nat. xix. 1864, p. 49; 
Giinth, Biol. C.--Am., Rept. p. 56. 
Ctenosaura cycluroides, Wiegm. Isis, 1828, p. 871; Bocourt, Miss. 
Se. Mex., Rept. p. 143. - : 
Iguana (Ctenosaura) cycluroides, Gray, Grif. A. K, ix. Syn. p. 87. 
—— (——) acanthura, Gray, 1. c. p. 38. 
—— (——) armata, Gray, loc. , 
— ( ) similis, Gray, J. ¢. 
—— (——) lanceolata, Gray, l. ec. 
—— (Cyclura) teres, Gray, /. ¢. p. 39. > 
Cyclura pectinata, Wiegm. Herp. Mex, p. 42, pl. ii.; Dum. & Bibr, 
iv. p. 221. 
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