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Potamides Brongniart. 



1. Potamides (Tympanotonos) fltiviatilis Potiez & Michaud. 



POTIEZ & Michaud. Cat. Moll. Douai, p. 363, PI. 31, fig. 19, 20. 

 KlENER. Coq. Viv. Vol. IV, Cerithium, p. 92, PL 29, fig. 3. 

 Reeve. Conch. Ic. Vol. XV, Tympanotonos, fig. 9. 

 Tryon. Man. of Conch. Vol. IX, p. 159, PI. 31, fig. 38. 



Stat. 7. Near reef of Batjulmati (Java). 15 M. Coral and stones, i Spec. 



Stat. 33. Bay of Labuan Tring, West coast of Lombok. 18 — 27 M. River-mud, coral, coral- 

 sand. I Spec. 

 Stat. 47. Bay of Bima, near South fort. Shore, i Spec. 



2. Potamides (Terebralia) palustris Linne. 



LiNNE. Syst. Nat. Ed. XII, p. 12 13. 

 RUMPH. Amb. Rariteitkamer, p. loi, PI. 30, fig. Q. 

 KlENER. Coq. Viv. Vol. IV, Cerithium, p. 81, PI. i. 

 Reeve. Conch. Ic. Vol. XV, Pyrazus, fig. 2. 

 Tryon. Man. of Conch. Vol. IX, p. 160, PI. 32, fig. 41, 42. 



KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium, p. 35, PI. 8, fig. i, 2; 

 PL 9, fig. I, 2. 



Stat. 86. Dongala, Palos-bay, Celebes. Shore, i Spec. 

 Stat. 213. Saleyer. Reef, i Spec. 



3. Potamides (Terebralia) stilcatus Born. 



Born. Testacea Mus. Caes. Vindob. p. 320. 



RUMPH. Amb. Rariteitkamer, p. loi, PL 30, fig. T. 



KlENER. Coq. Viv. Vol. IV, p. 89, PL 27, fig. i, 2. 



Reeve. Conch. Ic. Vol. XV, Pyrazus, fig. i. 



Tryon. Man. of Conch. Vol. IX, p. 160, PL 32, fig. 46, 47. 



KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium, p. 40, PL 8, fig. 7, 8. 



Stat. 4b. Pulu Kawassang, Paternoster-islands. Coralreef. i Spec. 



Stat. 50. Bay of Badjo, West coast of Flores. Shore. 4 Spec. 



Stat. 71. Makassar. Up to 32 M. Mud, sand with mud, coral, i Spec. 



Stat. 86. Dongala, Palos-bay, Celebes. Shore. 4 Spec. 



Stat. 131. Beo, Karakelang-islands. Reef 5 Spec. 



Varying much in shape and size, the smallest fullgrown specimen from Stat. 86, reaching 

 only a length of about 30 Mill., the largest from Stat. 50 of 47 Mill, but I have seen larger ones. 



Cerithidea Swainson. 

 I. Cerithidea ornata A. Adams. 



A. Adams. Thes. Conch. Cerithium, p. 887, PL 186, fig. 277, 278. 

 Reeve. Conch. Ic. Vol. XV, Cerithidea, fig. 22. 

 Tryon. Man. of Conch. Vol. IX, p. 162, PL 33, fiig. 64. 



KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium, p. 51, PL 11, fig. i, 2. 



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