159 



plate the name is coraillium, v. Martens (Journ. Lin. Soc. Vol. 21, p. 190) has recordecl it 

 from the Mergui-archipelago as C. corallium Defrance, Reeve and Tryon write Corallinum. 

 I have applied the original name but with Kiener's name as the author. The species varies 

 considerably in size. 



7. Cerithium ros tra turn Sowerby. 



Süwerby. Thes. conch. Vol. II, p. 861, PI. 180, fig. 104. 



Reeve. Conch. Ie. Vol. XV, Cerithium, fig. 95. 



Tryon. Man. of Conch. Vol. IX, p. 130, PI. 23, fig. 90, 91. 



KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium, p. 211, PI. tf , fig. 8, 9. 



Stat. 37. Sailus Ketjil, Paternoster-islands. Up to 18 M. Coral and coralsand. 5 Spec. 

 Stat. 43. Pulu Sarassa, Postillon-islands. Up to 36 M. Coral. 1 Spec. 

 Stat. 206. Buton-strait. 5 1 M. Fine, green mud. 2 Spec. 



The quoted figures give but a faint idea of the delicacy and beauty of this species, 

 which is of a transparant white, with very fine brown dots and streaks, the canal stained with 

 blackish brown. 



8. Cerithium baltcatum Philippi. 



Philippi. Zeitschr. f. Mal. 1848, p. 22. 



Abbildungen neuer Conch. III, p. 16, Cerithium, PI. I, fig. 10. 



REEVE. Conch. Ie. Vol. XV, Cerithium, fig. 72*7. 



Tryon. Man. of Conch. Vol. IX, p. 131, PI. 23, fig. 2, 3. 



KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium, p. 189, PI. 34, fig. 16, 17. 



Stat. 299. Buka-bay, South coast of Rotti-island. 36 M. Mud, coral and Lithothamnion. 3 Spec. 

 The only adult specimen agrees very well with Reeve's fig. 72^. 



9. Cerithium serratum Wood. 



Wood. Index testac. PI. 28, fig. 158. 



Reeve. Conch. Ie. Vol. XV, Cerithium, fig. 75 {rubus). 



Tryon. Man. of Conch. Vol. IX, p. 131, PI. 23, fig. 4—9 {rubus). 



KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Cerithium, p. 213, PI. 38, fig. 1. 



Stat. 81. Pulu Sebangkatan, Borneo-bank. 34 M. Coral-bottom and Lithothamnion. 1 Spec. 

 Stat. 240. Banda. 9 — 45 M. Black sand, coral. 2 Spec. 



Stat. 299. Buka-bay, South coast of Rotti-island. 36 M. Mud, coral and Lithothamnion. 1 Spec. 

 Stat. 313. Dangar Besar, Saleh-bay. Up to 36 M. Sand, coral and mud. About 120 Spec. 

 Stat. ? 4 Spec. 



Very variable in colour, yellowish, brown, whitish, often more or less banded and variegated 

 with darker colours, however shape, size and sculpture agree with such specimens as may be 

 considered to belong to the type. Cerithium rubus of Martyn, seems to be quite another 

 species; according to Pilsbry (Proc. Acad. Nat. Sc. Philadelphia. 1901, p. 392) it should be the 

 same as C. echinatum of Lamarck; if this be right; the species recorded above sub N" 4, 

 ought to bear that name. 



51 



