222 GECKONID^. 



Var. B. — Brown above, dotted with, darker ; a dark line on the 

 side of the head, passing through the eye ; a dark band on each 

 side of neck, and from axilla to groin ; yellowish dark-edged 

 ocelli on the back, limbs, and tail ; digits annulate with yellowish ; 

 end of tail with two blackish annuli, separated by a yellowish 

 interspace ; lower surfaces whitish, with minute brown dots, 



b. Ad. Santa Oruz. 



€.'. Ad. Chontales, Nicaragua. 



7. Sphserodactylus casicolus. 

 Sphserodactylus casicolus. Cope, Proc. Ac. Philad. 1861, p. 499. 



Dorsal scales very minute, keeled; occipital granular, frontal 

 keeled. Inferior labials (anterior to posterior border of orbit) five. 

 Supra-nasal plates as long as broad. Muzzle elongate. Auricular 

 aperture larger than digital pallet. Dark-brown rufous, with three 

 distant, transverse, dorsal blotches, bordered with lighter ; the 

 anterior or interscapular indistinct. A dark spot upon the nape, 

 bounded by two light dots. Numerous short longitudinal white 

 lines upon the dorsal and lateral regions ; none upon the head. A 

 loreal and three postocular dark lines. Beneath whitish, chin and 

 sides of neck punctulated with rufous. 



Eegion of the Truando, Colombia. 



8. Sphasrodactylus alopez. 



Sphserodactylus alopex, Cope, I. c. 



Dorsal scales keeled, smaller than in S. oxyrrhinus. Muzzle very 

 acute, profile sloping regularly from the frontal region. Inferior 

 labials (anterior to posterior border of orbit) six. Supra-nasal plates 

 separated. Pupil apparently elliptic. Tail much longer than body. 

 Above rufous grey, closely vermiculated with longitudinal rufous 

 lines ; tail and extremities spotted with the same. Beneath pale 

 brownish, faintly vermiculated with rufous brown on the gular 

 region and the sides of the neck ; many of the abdominal and femoral 

 plates margined with the same. 



San Domingo. 



9. Sphsrodactylus oxyrrhinus. (Plate XVIII. fig. 4.) 



Sphserodactylus oxyrhinus, Gosse, Ann. Mag. N. H. (2) vi. 1850, 

 p. 347 ; Cope, I. c. 



Very closely allied to S. argus, from which it differs in the much 

 longer and sharper snout and the larger rostral plate ; the length of 

 the snout equals nearly twice the diameter of the orbit, and is much 

 more than the distance between the eye and the ear-opening. Pale 



