304 BARBOUR: ZOOGEOGRAPHY. 



. example, — have perhaps quite unconsciously over-emphasized the closeness of 

 the relationship of the Antilles with one another. 



The name Sauresia may be retained as a subgeneric heading, if it is desirable 

 to point out the fact that the Haitian individuals of this group of individuals 

 have become more modified in structure from the generic type than have the 

 individuals on Cuba and Porto Rico. 



Celestus pleii (Dumeril et Bibron). 



Dumeril et Bibron, Erp<5t. gen., 1839, 5, p. 605. Stejneger, Rept. U. S. nat. mus. for 1902, 1904, 

 p. 622. 



A species rare, like all the others in the genus, because its ground-inhabiting 

 nature makes it an easy prey for the marauding mongoose. Stejneger has shown 

 that the type locality was beyond doubt erroneous (it was given as Martinique) , 

 and that the species is confined to Porto Rico. 



Celestus impressus Cope. 

 Cope, Proc. Aead. nat. sci. Phila., 1868, p. 127. Barbour, Bull. M. C. Z., 1910, 52, p. 298. 



A species which is still fairly abundant in the hilly country about Mandeville 

 in Jamaica. It is confined to that island. 



Celestus occiduus (Shaw). 

 Shaw, Zoology, 1802, 3, p. 288. Barbotjr, Bull. M. C. Z., 1910, 52, p. 294. 



In my Notes on the herpetology of Jamaica, I included within this species 

 C. striatus (Gray), and C. hewardii (Gray). These species, probably on account 

 of very deficient material, had been considered distinct since their description, 

 and confined to Jamaica. 



Garman (Bull. Essex inst., 1887, 19, p. 21) says that a "careful study of the 

 type of Cope's D. stenurus convinces me that Dr. Boulenger is right in placing 

 it in D. striatus." The type of Cope's Diploglossus stenurus, from Jeremie, 

 Haiti (M. C. Z., No. 3,612), is a very large individual, for a long time the only 

 Haitian specimen of the species in the collection. It agrees closely with the 

 description given by Boulenger (Cat. lizards Brit, mus., 1885, 2, p. 289, pi. 16, 

 fig. 1) for Diploglossus striatus, which I believe to represent only a variation of 

 Celestus (Diploglossus) occiduus (Shaw). If, however, the small auditory open- 

 ing of which Boulenger speaks in his description of C. (D). striatus is really con- 

 stant, then the individuals having it may be entitled to specific rank. The ear 

 opening is small in the type of C. stenurus (Cope) ; but this character shows itself 



