SMITH : NON-MAEINE MOLLUSCA OF THE GRENADINES. 321 



III. GRENADINES. 



As far as I can ascertain, the following nine species appear to be all 

 that are at present known from these islands. None of them are 

 peculiar, since they occur in some of the neighbouring islands, with the 

 exception of Succinea pusilla, which, until now, has only been recorded 

 fi'om S. America. 



1. Helix (DenteClaria) peeplexa, Ferussac. 



Mah. — Miistique and Becquia. " Common in dry woods, ascending 

 trees after rain" (H. H. S.) ; Cariacou and Baticeaux, Grenadines 

 (in Coll. Eawson). 



2. Okthalicus zebra (Miiller). 



Sab. — Cariacou, Grenadines. (Collected by Sir R. Rawson.) 

 Acliatina undulata, Guilding (Zool. Journ., vol. iii, p. 531), from 

 Union Island, is probably this species. 



3. BuLiMus (Plecochilus) glaber (Gmelin). 



Hob. — Cariacou, Grenadines. (Collected by Sir R. Rawson.) 



4. BuLiMULUs (Drym^us) stramineus (Guilding). 



Hab. — Mustique Island, Grenadines. "A few, mostly young, seen 

 on tree-trunks in dry forest, after the first rains in June " (H. H. S.). 

 Also Becquia (H. H. S.). 



This species is also quoted by Bland as inhabiting Mustique. Mr. 

 Smith observes in his notes that "the animal is light green, much 

 paler than in the St. Yincent specimens." 



Sir R. Rawson has a variety from Mustique, which is totally white. 



5. Succinea Barbadensis, var. 



Succinea Barbadensis, Guilding. — Zool. Journ. 1828, vol. iii, p. 532, 

 tab. suppl. xxvii, figs. 4-6 ; Pfeiffer, Mon. Hel., vol. ii, 

 p. 530. 



Sab. — Barbados (Guilding, Eeilden, etc.) ; common under stones on 

 open hill-sides, Mustique Island, Grenadines (H. H. S.). 



The specimens from Mustique appear to have a slightly smaller 

 spire, or, in other words, the apical and penultimate whorls are smaller 

 than in examples from Barbados. The form of the body-whorl 

 and the aperture are about the same in both. I cannot separate 

 *S'. Bermudensis, Pfr., from this species. 



6. Succinea pusilla, Pfeiffer. 



Succinea pusilla, Pfr.— Conch.-Cab., ed. 2, p. 53, pi. v, figs. 27-29 ; 

 Sowerby, Conch. Icon., vol. xviii, fig. 35 (enlarged). 



Sab. — Ceara, S. America (Pfr.) ; Guayaquil (Hinds in Brit. Mus.) ; 

 Union Island, Grenadines (H. H. S.). 



The specimens from Union Island are rather more amber-tinted than 

 the types, but in form and other respects they are similar. " Ceara," 

 the original locality assigned to this species, may be Ciara in North 

 Brazil. 



7. SuBULiNA octona (Chemnitz). 



Sab. — Mustique Island, common under rotting leaves (H. H. S,). 



