BY THE REV, J. E. TENISON-WOODS. 
1047 
B. POLYMORPHUS (Cochlostyla), Tapp. Canefri = Gochlostyla 
poJymorpha^ Tapp. Canefri, Malac. del viaggio della fregata 
Magenta, 1874, p. 82, pi. 2, figs. 4 &-h. = Bidimus polymorpliusy 
Pfr. Mon. Hel. VIII. p. 23. M. H. Crosse (Jour. Conch. 1874, 
p. 320) regards this species as only a variety of B. (^Amphidromus) 
comes, Pfr. of Cambodia. 
Singapore. 
B, MELANOMMA, Pfi*.= Helix Jtammea, Chemn. IX, p. 94, 
fig. 927 = Bidimus inversus, Kust. pi. 6, fig. 3 (ex Chemn.) = 
B. citrinus, var. Reeve, Conch. Icon. pi. 31, fig. I87a = R. 
elongatus, Hombr. et Jacq. Voy. Pole Sud, Moll. pi. 8, figs. 3-4 (?) 
= B. melanomma. Pfr. Zeitsch. f. Malak, 1852, p. 95; Chemn. 
2nd edit. Bui. No. 179, pi. 39, figs. 28-29 ; Pfr. Mon. Hel. HI. 
p. 310. 
Singapore ; Borneo. 
B. LiNSTEDTi, Pfr. Proc. Zool. Soc. 1856, p. 388 ; Mon. Hel. 
IV. p. 374. 
Malacca. 
B. MUNDUS, Pfr. Zeitschr, f. Malak. 1853, p. 57 ; Mon. Hel. 
Ill, p. 651 ; Chemn. 2nd edit. Bui. p. 373, pi. 70, figs. 21-22. 
Singapore. 
B. BATAviiE (Partula), Grateloup,= Partida hatavios, Grat. 
Act. Bord. XI. p. 425, pi. 2, fig. 12 = Bulimus hatavice, Pfr. Mon. 
Hel. II. p. 40. 
Java. 
B. INVERSUS, Mull. = 77. inversus, Mouss. Jav, Moll. p. 107; 
Pfr. Zeitschr. f. Malak. 1849, p. 132; ( Amj)hidronms) hAherfi, 
Helic. p. 138; {Helix) Pfr. Mon. Hel. III. p. 318. 
Thi.s has been as long known as Bidimus perversus, and has 
had the same synonyms applied to it. 
Malacca ; Singapore ; Siam. 
