GEOGRAPHICAL DISTRIBUTION. 
Moll. 53 
VI.—NEOTROPICAL ZONE. 
24. Columbian Region. 
Venezuela. 4 new species of Vaginula ; Semper (332). 
25. Brazilian Region. 
Notes on some forms from, with 2 spp. nn. ; v. Martens (254). New 
Bulimus ; icl. (256). 8 species of Vaginula (7 new); Semper (332). 
Rio Janeiro. Vaginula fusca, sp. n., Heynemann (175). 
South America. Ampullaria ( Pomus) martensiana , sp. n., Nevill, 
(277) p. 10. 
Piracicaba. Castalia , sp. n. [= C. undosa , v. Martens, (254) p. 148] ; 
Nehring, (276) p. 126. 
20. Mexican Region. 
Mexico. 2 species of Vaginula (1 new) ; Semper (332). 
Central America. 3 new species of Physa ; Clessin (76). 
27. Caribbean Region . 
7 species of Vaginula (2 new) ; Semper (332). 
Bahamas. Helix ( Hemitrochus) filicosta , Pifr. ; habitat hitherto un¬ 
known : Thompson (355). 
Montserrat. Pomatias labrosus , sp. n., Westerlund, (377) p. 117, 
29. Atl into-American Region. 
Florida. 83 species of Gastropoda enumerated by Dall (97) ; the 
most noteworthy being Bulimulus multilineatus (Say), B. marielinus , 
Poey, Strobila hubbardi (Brown), Helix {Polygyro) auriformis, Bland, II. 
(P-) avara , Say, H. (Triodopsis ) inflecta, Say, H. ( T .) vultuosa , Gld., 
Gappy a gundlachi (Pifr.), Zonites sculptilis , Bland, Lirnncea humilis , Say. 
Mississippi Valley. 297 species of Unionidce (Anodonta 33, Margari- 
tana 16, Unio 248) recorded, with habitats, by Call (63). 
Missouri. List of 55 species (Planorbis sampsoni } sp. n., Ancey) ; 
Sampson (320). 
Kansas. 14 additional species (3 Unio, 2 Anodonta, 2 Sphcerium , 
1 Pisidum , 2 Amnicola, 3 Lymnophysa , 1 Ancylus ), enumerated by Call 
( 64). See also Binney & Gray (22). 
Indiana. 62 species enumerated by Moore & Butler (267) from 
Franklin County. 
Massachusetts. 54 species from Bristol County enumerated by 
Thompson (354). 
Great Basin (Nevada and surrounding districts). List of recent and 
quaternary species (Amnicola dalli , sp. n., 2 varr. nn.) ; Call (62). 
See also Binney (21). 
