HERPETOLOGY OF PORTO RICO. 



625 



List of specimens of Celestus pleii. 



Genus ANOLIS" Daudin. 



1803. Anolis Daudin, Hist. Nat. Rept., Ill, p. 50 (type A. bullaris). 



1817. Anolius Cuvier, Regne Anim., 1st ed., II, p. 41 (emend.). 



1826. Xiphosurus Fitzinger, Neue Class. Rept., p. 17 (type A. cuvieri). 



1830. Dactyloa Wagler, Nat. Syst. Amph., p. 148 (substitute name). 



1836. Acantholis Cocteau, Compt. Rend. Acad. Paris, III, 1836, p. 226 (type A. 

 loysiana). 



1843. Semiurus Fitzinger, Syst. Rept., p. 64 (type Anolis cuvieri). 



1843. Eupristis Fitzinger, Syst. Rept., p. 64 (type Anolis equeslris). 



1843. Microdenus Fitzinger, Syst. Rept., p. 64 (type Anolis edxvardsii=A. gar- 

 mam). 



1843. Ctenonotus Fitzinger, Syst. Rept., p. 64 (type Anolis bimaculalus). 



1843. Istiocercus Fitzinger, Syst. Rept., p. 65 (type A. cristatellus) . 



1843. Ptychonotus Fitzinger, Syst. Rept., p. 65 (type A. fasciatus). 



1843. Trachycoelia Fitzinger, Syst. Rept., p. 66 (type A. lineatus). 



1843. Ctenodeira Fitzinger, Syst. Rept., p. 66 (type A. richardii). 



1843. Eudactylus Fitzinger, Syst. Rept., p. 67 (type A. goudotii). 



1843. Heterolepis Fitzinger, Syst. Rept., p. 67 (type A. pulchella). 



1843. Trachypilus Fitzinger, Syst. Rept., p. 67 (type A. sagraei). 



1843. Ctenocercus Fitzinger, Syst. Rept., p. 68 (type A. carolinensis) . 



1843. Heteroderma Fitzinger, Syst. Rept., p. 68 (type A. loysiana). 



The great facility with which many species of this genus are able 

 to change their colors has earned for them the name American Chame- 

 leons, and the larger species are also usually know r n by the name 

 "cameleon" in the Greater Antilles, the smaller ones being called 

 "lagarto." The generic term Anolis, which is supposed to be of 

 West Indian origin, might very appropriately be adopted also as the 

 vernacular name. 



The faculty of changing color is quite astonishing in some of the 

 species. Thus the brilliantly emerald green Anolis evermanni turns 

 in an instant to a dingy wax^ellow w T ith various dusky markings. 

 Under certain conditions A. gundlachi and A. cristatellus may appear 

 entirely sooty black, and w T hile in affect A. hrugi may lose its very 

 conspicuous longitudinally striped pattern and become a semitrans- 

 lucent olive. The brilliant color of the gular sack, or dewlap, of the 

 males does not seem to be subject to this ehangeabilitj'. 



« Anolis, native name of several species in the Antilles. 

 NAT MUS 1902 40 



