32 



Nils Rosén 



ridges are separated by a row of scales. Between the ridge and the canthus rostrahs 

 is posteriorly one row of scales, anteriorly (behind the nostril a patch of numerous 

 small scales). Canthus rostralis witli seven keeled scales. Four loreal rows. The infra- 

 orbitals seem to be more numerous than in the common form. They preserved speci- 

 mens show a brownish colour, very light beneath. The back with a few indistinct 

 narrow dark crossbands. A very distinct dark line crossing the head going trough 

 both eyes and the part between them. Tail above with seven large dark spots. 



From this short description it is evident that there is a distinct difference 

 between the two forms of Anolis porcafus which I have found in the Bahamas. 

 Unfortunately I did not observe the latest described form untill I at home examined 

 the specimens. The description of the colour of this form, as given above, is, with 

 all probability, no true expression for the colour in a living state. If so had been 

 the case, I would certainly have observed it when catching the specimens. The 

 present knowledge about the Bahama form of AnoUs 2>orcnh(s can from what is 

 stated above be in shortness expressed as follows. 



There are two forms of »Anolis porcatus » occurring in the 

 Bahamas. One of them is rather common on Andres and New Prov- 

 idence and has been described above. With all probability Cope's 

 A. p. subsjyec. brunnens is identical with this form. The other form 

 seems from the fact that I have got only two specimens during my 

 long stay on Andros and New Providence to be very rare. .It differs 

 from the form first mentioned in the shape of the head ridges, the 

 number of scales included in them, a greater number of scales 

 behind the nostril, and in some other characters, perhaps also in 

 colouration. From the insufficient descriptions of the forms of 

 ■»Anolis porcatus» that occur in Cuba, it is impossible for me with- 

 out any specimens from this locality before me to decide whether 

 the Bahama forms of »A. porcatus» are both distinct from the Cuba 

 form, or wether one of them is identical with it. As I have only 

 found two specimens of the rare Bahama form, it is also with the 

 great variability the species of Anolis always show impossible to 

 decide wether this is a distinct species or only a »form» of Anolis 

 p or catus. I have indicated above the characters in squamation, on 

 which the study of this question ought to be based. 



Anolis porcatus brunnens, Cope. 



A. principalis brunnens, Cope, Proc. Nat. Sei., Philadelphia, 1894, pag. 432. 



Described by Cope (11) from Crooked Island. See what is stated above about 

 Anolis porcatus. 



