155 



This fine shell has much puzzled me; after comparing it carefully with typical specimens, 

 I can see nothing in it but a dwarfed form with obsolete sculpture, probably owing its peculiar 

 character to the considerably greater depth. A young specimen is scarcely different from young 

 ones from Stat. 306. Unfortunately the shells contained nothing but some mud. 



The radula of a small specimen from Stat. 306 agrees in many respects with those of 

 other Strombidae, it is short, with about 35 rows of teeth, its colour is yellowish. The rhachidian 

 tooth (R) has a body which is broad in front and suddenly narrower about halfway; its cusp 

 has 1 1 denticles, of which the central one is the largest; the lateral tooth (1) has a transversely 

 much elongated body and about 9 denticles on its reflected margin. The uncini (U) are long, 

 slender, much curved, with a few small denticles on the sides. It was a male specimen with 

 a long slender penis, ending in a thickened, spear-shaped point. 



Rimella Agassiz. 



1 . Rimella cancellata Lamarck. 



Lamarck. An. s. vert. Ed. II, Vol. IX, [Strombus) p. 710. 



KlENER. Coq. Viv. Vol. III, Rostellaria, p. 9, PI. 3, fig. 3. 



KüSTER. Martini-Chemn. Conch. Cab. Ed. II, Vol. IV, Strombea, p. 7$, PI. 20, fig. 5. 



REEVE. Conch. Ie. Vol. VI, Rostellaria, fig. 10. 



Tryon. Man. of Conch. Vol. VII, p. 129, PI. 10, fig. 18, 20. 



Stat. 58. Seba, Savu. Up to 27 M. 2 Spec. 



Stat. 71. Makassar and surroundings. Up to 32 M. Mud, sand with mud, coral. 5 Spec. 



Stat. 231. Amboina. 54 M. Coralsand. 1 Spec. 



Stat. ? 2 Spec. 



forma minor. 



Stat. 133. Lirung, Salibabu-island. Up to 36 M. Mud and hard sand. 9 Spec. 



Shell only from 19 to nearly 23 Mill. in length, more conspicuously banded. 



I have maintained Rimella as a genus, though it has been considered by Fischer and 

 Tryon as a subgenus of Rostellaria, but the operculum is serrate as in Strombus, instead of 

 being smooth-margined as in Rostellaria. 



The forma minor distinguishes itself by its smallness and the vivid painting, the specimen 

 from Amboina which has a length of 26 Mill. and which is also more gayly coloured may be 

 considered as a link between the type and forma minor. 



2. Rimella crispata Sowerby. 



SOWERBY. Thes. Conch. Part I, p. 26, PI. 8, fig 62, 63. 



KlENER. Coq. Viv. Vol. III, Rostellaria, p. 10, PI. 4, fig. 2. 



KüSTER. Martini-Chemn. Conch. Cab. Ed. II, Strombea, p. j6, PI. 25, fig. 4, 5. 



REEVE. Conch. Ie. Vol. VI, Rostellaria, fig. 8. 



Tryon. Man. of Conch. Vol. VII, p. 129, PI. 10, fig. 19. 



Stat. 174. YVaru-bay, North coast of Ceram. Reef. 1 Spec. 



Stat. 260. North point of Nuhu Jaan, Kei-islands. 90 M. Sand, coral and shells. 1 Spec. 

 Stat. 261. Elat, West coast of Great-Kei-island. Reef. 9 Spec. 



47 



