33. CONOLOPHTJS. — 34. METOPOCEROS. 187 



long, roundish, slightly compressed. All the teeth trilobate ; ptery- 

 goid teeth*. No sternal foutanelle. No abdominal ribs. 

 Galapagos Islands. 



1. Conoloplms siibcristatiis. 



Tracliyceplialiis Pnbcristalu.s, (U-ay, Cat. p. 188. 

 Amblyrhynchus subciistatus, Gray, Zoul. Alisc. ] 83] , p. 6, and Zool. 

 Beechey's Voy., Eept. p. 03; Daricin, Joiirn. Beayle, p. 469. 



demarlii, Bum. 8,- Bihr. iv. p. 197; Bell, Zool. Beayle, liept. 



p. 22, pi. xii. 

 Hypsilophus (Conoloplius) demarlii, Fitziny. Syst. Bept. p. 55. 

 Couolophus subcristatus, ISteind. Fcslsdir. zool.-bot. Ges. Wien, 

 1876, p. 322, pis. iv.-vii. 



Habit stout. Head rather small, little longer than broad ; nostril 

 turned upwards and slightly outwards, slightly nearer the end of 

 the snout than the orbit ; eye and tympanum of moderate size ; 

 upper surface of head covered with rather large, convex or sub- 

 conical, keeled polygonal scales ; occipital very slightly enlarged ; 

 rostral and mental moderately large : labials twelve. Throat longi- 

 tudinally plicate, covered with minute granules. A low uuchal 

 crest of recurved sijines, continued as a feebly serrated ridge along 

 the back. Scales on the body very small, keeled on the back, smooth 

 and slightly larger on the belly. Limbs strong ; digits very short ; 

 fifth toe not longer than second ; third toe strongly denticulated 

 along the inner side of the basal joint. Seventeen to twenty-one 

 femoral pores on each side. Tail scarcely longer than head and 

 body, feebly compressed, with very slightly serrated upper edge, 

 covered with small equal keeled scales. Dark brown, lower surfaces 

 and head lighter. 



centiin. centim. 



Total length 107 Fore limb 21 



Head 9 Hind limb 26 



^\^idth of head 8 Tail 54 



Body 44 



Galapagos, Central Islands. 



a. Hgr. Galapagos. C. Darwin, Esq. [P.]. 



h. Ad., stuffed. Galapagos. Capt. Fitzroy [P.]. 



c. Ad., stuffed. Galapagos. Haslar Collection. 



d. Left mandible. Iguana Cove. 



34. METOPOCEROS. 



Iguana, part., IJaud. Bept. iii. p. 358; Fitziny. N. Classif. Bept. 



p. 17; Wicym. Ilrrp. Mex. p. 15. 

 Metopoceros, Wayler, Syat. Amph. p. 147 ; Dum. Sf Bibr. iv. p. 210; 



Fitziny. 8yd. Bept. p. 54 ; Gray, Cat. Liz. p. 188. 

 Alopoiiotus, Dum. ^- Bibr. iv. p. 189 ; Fitziny. I. c. ; Gray, Cat. p. 187. 



* The presence of pterygoid teeth has been denied by Steindachner. They 

 exist in young Bpecimens. 



