— 231 — 
Planorbis circumlineatus Pfr. 
Ancylus odscurus C. B. Ad. 
Pedipes mirabilis Mühlf. 
Trunecatella elathrus Lowe. 
— subeylindrica Gray. 
— pulchella Pfr. 
Megalomastoma antillarum Sow. 
Chondropoma Neweombianum Ad. 
Portorico, St. Jan. 
1?) Fauna_von St. Jan: 
Microphysa subaquila Shuttl. 
Euclasta euclasta Shuttl. 
Plagioptycha nemoralina Petit, 
Thelidomus notabilis FEr. 
Bulimulus elongatus Bolten. 
— fraterculus Pfr. 
Stenogyra @oodalli Millet. 
— octonoides Ad, 
— subula Pfr. 
— octona Chemn. 
— impressa Pfr. Haiti. 
Plagioptycha nemoralina Petit. 
Thelidomus notabilis Shuttl, 
‘ Bulimulus virgulatus Fer. 
Stenogyra octona Chemn. 
Leptinaria antillarum Shuttl. 
15) Fauna von St. Croix: 
Microphysa vortex Pfr. 
Plagioptycha Santacruzensis Pfr.s. f. 
Caracolus caracolla L. s. f. 
— marginella Gmel. s. f. 
?Helix variegata Chemnitz. 
Bulimulus elongatus Bolten. 
— fratereulus Fer. 
— extinctus Pfr. 
Pupa fallax Say. 
Chondropoma Santacruzense Pfr. 
St. Croix. 
Helieina foveata Pfr. Portorico. 
— subfusca Mke. Portorico. 
Aleadia rubella Pfr. 
Neritina virginea L, 
— viridis L. 
Dreissena Riüisei Dkr. Portorico. 
Spiraxis Swiftianus Pfr. 
Pupa pellucida Pfr. 
Macroceramus mierodon Pfr. 
Cylindrella pallida Guild. 
Succinea approximans Shuttl. 
Hydrobia coronata Pfr. 
Megalomastoma antillarum Sow. 
'Chondropoma Newcombianum Pfr. 
Helicina phasianella Sow. 
— subfusca Mke. 
Alcadia rubella Pfr. 
| Macroceramus microdon Pfr. 
— signatus Guildg. 
Cylindrella pallida Guildg. 
Hydrobia coronata Pfr. 
Chondropoma tortolense Pfr. 
Strophia rudis Pfr. 
var. latilabris Pfr. 
' Cylindrella chordata Pfr. 
Suceinea Riisei Pfr. 
Limnaea cubensis Pfr. 
' Cylostomus fallax Pfr. 
" Cistula rufilabris Beck. 
\\ Chondropoma Santacruzense Pfr. 
' Neritina viridis L. 
3) Von Anguilla sind nur bekannt: 
Bulimulus Lehmanni Pfr. 
— anguillensis Pfr, 
Jabrb, VII, 
Macroceramus signatus Guild. 
| Cistula lugubris var. 
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