28 



Nils Rosén 



Anolis distichus, Cope. 



Proc. Acad. Nat. Sei. Philadelphia, Vol. 13 (1861), p. 208. 

 Fig. 13, a — c. 



This species was first described from New Providence. Later authors have 

 found it also on Great Abaco (Cope 10), Andros (Barbour 1) and Cat Island (Stej- 

 NEGER, 18). It is somewhat uncertain whether the specimens from Andros belong to 

 tliis species. During may stay on Andros, — what was more than six months — 

 I did not find this species there, but another one, closely allied, which I am des- 

 cribing below as a new species, A. distichoides. These two species, if not carefully 

 examined, will easily be confused with one other, still there is a distinct difference 

 between them both in colour and squama.tion. Of A. distichus I collected many 

 specimens on New Providence. Cope's description of A. distichus shows clearly that 

 it is identical with the species, I found on New Providence. I am giving below a' 

 description of A. distichus in order to show the difference between the two species 

 mentioned. 



Forehad concave. P'rontal ridges distinct. Upper headscales smooth or rugose. 

 A median suture on the snout, beginning on the rostral. Two rows of five lai'ge 

 quadrangular or polygonal scales, separated by the mentioned suture, diverging 

 posteriorly. The last scale in each row, which are separated by small scales, is the 

 largest one, and in contact with the supraorbital semicircle. On each side between 

 these rows of enlarged scales and the cantus rostralis is a row of three large scales, 

 one of which is in contact with the first and second scales of the supraorbital 

 semicircle. Several small scales behind the nasal. Canthus rostralis distinct, with 

 two or three larger scales near the superciliaries. Two keeled superciliary scales, 

 followed by small tubercles, a httle larger than those on the eylid and the supra- 

 ocular disk, thus forming a limit between them. Supraorbital semicircle beginning 

 at the canthus rostralis, with about six larger scales, followed by smaller ones. Both 

 the semicircles in contact with each other between the- eyes or separated by a series 

 of small scales. Supraocular disk with about five enlarged scales separated by small 

 scales from the supraorbital semicircle. The enlarged scales of the supraocular disk 

 smooth or with a small tubercle in the middle. Several small scales in tlie space 

 which is enclosed by the diverging ends of the two rows of large scales on the 

 snout and the supraorbital semicircles before their contact. Occipital very large, 

 divided in two parts by a transverse straight suture, in contact with the supraorbital 

 semicircles. Behind the occipital several small »swoUen» scales, much larger than 

 the dorsals. Nasal in contact with the rostral, separated from the superior labials. 

 Loreals in about four rows. About seven large superior labials, followed by smaller 

 scales. About six larged keeled infraorbitals, three of them being in contact with 

 superior labials. About six smooth inferior labials. Two or three rows of large 

 smooth scales between the inferior labials and the underhead scales. Dorsals gran 



