232 SMITH : MOLLUSCS OF TRINIDAD. 
(=G. semen-lini), has been cited as from Cuba and Grenada. 
Lupa Lyriest, Homalonyx felina, Ampullaria cornu-arietis, and 
A. urceus are also unknown further north than Trinidad. 
Of the five species quoted from ‘Trinidad and other islands and 
said not to occur on the mainland, one, Plecochilus auris-sciurt 
(=f. glabra) is South American. In addition, Cceczloides 
minulissima, Bulimulus Rawsont, Veronicella occidentalis, Pedipes 
murabilis, Planorbis lucidus, and Truncatella pitlchella, occurring 
in some of the other islands besides ‘Trinidad, have not yet been 
met with on the continent. 
TABLE OF DISTRIBUTION OF THE SPECIES. 
— 4 
| ISLANDS CENTRAL 
| NAMES OF THE SPECIES. 2 ase [ERNIE ee 
he OE pee A eae , ue 
Ceécilivides minutissima  - - a al Me AS 
| Subulina simplex - - - Wil 3 
bi iSe eae im, Soe - - | ores 
S. octona - - : = x x x 
| Opeas Beckianx - - - x x | 
| O. plicatella - = = Ee | DR Medes colt WATS x 
| O. micra = - . Seal i | x x 
| Leptinaria lamellata : eet tamer a2 x 
| Omphatina Guildingt 2 Z hte Seal 
| Vitrea implicans — - > = | x 
| V. umbratilis - - - x | 
I G uppya semen-lint - - = x x eo | 
Selenites alicea - 2 - [os 
Lipiphragmophora coactiata - x | 
Thysanophora bactricola - - x x | 
7. fusciula - : - - x x 
T. dioscoricola : = - x x aus 
Orthalicus zebra - : 3 x x aval 
Strophochilus oblongus — - - x x x 
Plecochilus glaber - - - x x x 
J C., viit., July 1896 
