BY THE REV. J. E. TENISON-WOODS. 
1087 
4. Faunhs, Montfort, Conch. Syst. II. p. 427. 
Shell subulate, with an attenuated spire, whorls numerous, 
smooth, covered with a blackish periostraca ; mouth notched in 
front, columella lip rather thick, with posterior callosity ; outer 
lip spreading with a posterior sinus. (Chenu, who figures the 
common species here described, only admits it as a sub-genus of 
Pirena). A tropical form with halt a dozen species at most, 
belonging to tropical Asia, the Philippines, and Western 
Polynesia. 
Faunus cantori, Reeve, Conch. Icon. fig. 2 ; Brot, Melan. 
p, 414 = Pirena cantori, Reeve, Conch. Icon, fig 2, China. 
Penang. 
F. ATER, L. = Stromhus ater, L. Syst. Nat. XII. p. 1213; Chemn. 
pi. 135, fig. 1227 = Nerita atra, Mull. Verm. No. 375 = (7m- 
thiurn jluviatile, Feruss. Syst. Conch, p. 69 = Pirena atra (L.) 
Mouss. Jav. Moll. pi. 10, fig. 1 ; Reeve, Conch. Icon. fig. 5 = 
Faunus ater (L.) H. and A. Ad. Gen. ; Gray, Guide Syst. Dist. ; 
Chenu, Man. Conch, fig. 2080 ; Brot, Melan. p. = Pirena 
terehralis, Lam. An. s. V. No. 1; Q. and G. Voy. Astrol. pi. 56 = 
Pirena picta, Reeve, Conch. Icon. fig. 3 (stat. juv.) 
Moluccas; New Guinea; New Ireland; Java; Ceylon; Am- 
boyna, dkc. 
5. Philopotamis, Layard, Ann. and Magaz. Nat. Hist. 
1855, p. 138. 
Operculum with the apex superior, )>aucispiral ; nucleus suh- 
hasal, dextral. 
Philopotamis olivaceus. Reeve, Conch. Icon. tig. 5 ; Brot, 
Gatt. Palud. p. 16. 
6. Paludomus, Swainson, Treatise on Malacology, p. 340. 
Shell thick, sub-globose or conical, solid, imperi’oiatc, smooth 
or tubercular, covered with an olivaceous epidermis ; spire shorter 
than the aperture, often eroded ; aperture ovate ; inner lip 
convex, thickened ; outer lip acute, the margin slightly reflexed ; 
operculum annular, nucleus sub-central. 
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