732 A. E. Verrill — The Bermuda Islands. 



Agua Toad may also eat it. The use of poisons, like lead cyanide, 

 on the leaves of succulent plants of which it is fond, might be 

 useful. 



Slender Snails. (Subuliria octona (Ch.); Opeas octonoides (Ad.); 0. 

 Swiftianum (Pfr.). 



Figures 77, 78. 



These three species of West Indian Achatinidae are usually found, 

 in the daytime, under stones and old logs. They have translucent, 

 whitish, elongated shells, and are sluggish in their habits. The first 

 named, which is the most common, was first recorded by T. Bland, 

 in 1SS1 ; the second and third were recorded in 1888, but both are 

 still rare. A fourth and very small species of this group ( Ccecilioides 

 acicula), from Europe, was recorded by T. Bland in 1861, but has 

 not been observed recently and may have died out. Fig. 78a. 



The Ennea bicolor, a small, widely distributed East Indian species, 

 of which a single example was collected by Heilprih in 1888, and 

 recorded by Pilsbry in 1900, was not found by our parties. 



American Toothed Snail. [Polygyra appressa (Say). 



Figures 75, d, e.f. 



This North American species, which is now very common, at least 

 in Hamilton Parish and Smith Parish, was recorded by Mr. J. T. 

 Bartram and J. M. Jones, in 1876, as found only in a single locality 

 near St. George's. It was first recorded by Temple Prime, in 1853, 

 (Bermuda Almanac) under the name of Helix Sancta-Georgiensis, 

 n. sp. 



It is nocturnal in its habits and may be found during the day con- 

 cealed under stones in the borders of gardens and fields, associated 

 with several other species, especially with Helicina convexa, Poecillo- 

 zonites Bermudensis, P. eircumfirmatns, Exdota similaris, Opeas 

 Siciftianvs, etc. It is common in the middle and southern United 

 States. The Bermuda form is the southern variety. 



Tree Snails; Bark Snails. [Helicella ventricosa (Drap.); Vallonia 

 pidchella (Midi.); Succinea Barbadensis Guild.) 



Figures 79, o, b, c, d. 



The first named of these is the most abundant. It is found in the 

 crevices of the bark or in other sheltered spots both on standing and 

 fallen trees of various kinds, including cedars and cycads, sometimes 



