143 



Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Ovula, p. i86, PL 48, fig. 2, 3. 

 Tryon. Man. of Conch. Vol. VII, p. 250, PI. 3, fig. 76, 77. 



Stat. 164. i°42'.5 S., 1 30° 47'. 5 E. Halmahera Sea. 32 M. Sand, small stones and shells. 3 Spec. 



The three specimens are slightly different from each other, the smallest agrees with the 

 original description, being small and white, however with orange-coloured extremities (perhaps 

 Sowerby's specimen was a bleached one), the other adult one is larger but agrees with the 

 descriptions of Reeve and Weinkauff, the third is a young shell, with a thin right margin; 

 its colour is white on the ventral side, light orange-red on the back, with 3 white bands; 

 perhaps this depends on age. I can see no reason to distinguish this juvenile specimen by a 

 new name, only on partly different colour. 



8. Amphiperas (Cyphoma) forniosmn Adams & Reeve. 



Adams & Reeve. Voy. Samarang, Moll. p. 22, PI. 6, fig. 6. 



Reeve. Conch. Ic. Vol. XV, Ovulum, fig. 39. 



Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Ovula, p. 189, PI. 48, fig. 10, u. 



Tryon. Man. of Conch. Vol. VII, p. 251, PL 4, fig. 15, 16. 



Stat. 164. i°42'.5 S., I30°47'.5 E. Halmahera Sea. 32 M. Sand, small stones and shells, i Spec. 



Stat. 213. Saleyer. 9 — 34 M. Mud and mud with sand. 4 Spec. 



Stat. 310. 8°30'S., Ii9°7'.5 E. Flores Sea. 73 M. Sand with few pieces of dead coral, i Spec. 



One of the specimens from Saleyer, with the living animal, has been figured in the 

 Monograph on the Opisthobranchiata of this work, on Plate 5, fig. 20. 



9. Amphiperas (Cyphoma) Semperi Weinkauff. 



Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Ovula, p. 190, PL 48, fig. 14, 15. 



Reeve. Conch. Ic. Vol. XV, Ovulum, fig. 37 [hordaceum). 



Tryon. Man. of Conch. Vol. VII, p. 251, PL 4, fig. 17, 18; PL 5, fig. 19. 



Stat. 240. Banda. Reef. 2 Spec. 



Stat. 315. East of Sailus Besar, Paternoster-islands. Up to 36 M. Coral and Lithothamnion. 

 I Spec. 



Weinkauff (1. c.) calls this species O. Sempieri^ evidently by error, for in his Catalogue of 

 the genus Ovtda (Jahrb. der deutschen Mai. Gesellsch. 1882, p. 174) he writes the na^me. Semperi. 



The specimen from Stat. 315 is more typical, purpHsh, with narrow aperture; those from 

 Banda are pale yellow, with larger aperture, like Tryon's fig. 19. 



10. Amphiperas (Radius) volva Linne. 



Linne. Syst. Nat. Ed. X, p. 725, N" 328. 



KlENER. Coq. Viv. Vol. I, Ovula, p. 26, PL 4, fig. i. 



Reeve. Conch. Ic. Vol. XV, Ovulum, fig. 41. 



Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. V, Ovula, p. 196, PL 50, fig. 4, 5. 



Tryon. Man. of Conch. Vol. VII, p. 252, PL 4, fig. 94, 95. 



35 



