472 



ferente, ad canalem recedente ; antice angustato, ad canalem sub- 

 uniplicato, intus excavato. 



This exquisite species resembles 0. margaritum in form, but 

 the callosity on the body whorl is more angular and creuulated. 

 There are six spots arranged in two rows on the back, which, in 

 one variety, are spread into wavy patches of red. 



Capt. Belcher brought specimens in the Samarang, from the 

 Cliina seas ; and Mr. Cuming^collected others at Capul and Batan- 

 zas, Philippines. 



16. Ovulum striatulum (pi. ci. f. 84, 85), Sowerby, Sp. 

 Conch. 1. p. 7. 



0. testa parva, oblonga, angulosa, minute striata, alba, vel 

 rosea ad extremitates rubra, dorso tumido, subangulato ; canalibus 

 snb-productis, paululum ad extremitates emarginatis; apertura 

 angusta ; labio externo sub-complanato, dentato ; labio interno 

 postice tumorem triangularem prominentem crenulatum ferente, 

 interne longitudinaliter sulcato, antice tumido, angustato, ad can- 

 alem posticum recedente, ad canalem anticum sub-uniplicato. 



Of an angular, oblong form, minutely striated at the back, the 

 extremities produced, and a triangular tumidity on the posterior 

 part of the body whorl, the teeth of the outer lip reach nearly to 

 the outer margin. The white shell was brought by the Samarang. 

 The small rose-coloured specimen with red tips, was brought by 

 Mr. Cuming, from Batanzas, Philippines ; and by Lieut. Belcher, 

 off Loo-Choo. 



17. Ovulum bullatum (pi. ci. f. 95, 96), Sowerby, junr., 

 Moll. Samarang, pi. vi. f. 13. a, b. 



0. testa ovali-oblonga, minute striata, roseo tincta, ad extremi- 

 tates fusco lineata : dorso ad marginem sulcato ; canalibus sub-pro- 

 ductis, integris; apertura angusta, labio externo intus crenato, 

 cornplanato; labio interno tumido, lsevi, intus depresso, sub- 

 sulcato, postice bullulam prominentem crenulatam ferente, ad 

 canalem sub-tortuoso, antice sub-excavato, ad canalem uni- 

 plicato. 



Of an oval form, striated at the back. The inner lip of the 

 posterior canal slightly tortuous, the outer lip flattened, slanting 

 inwards and creuulated, the body whorl in front near the posterior 

 angle having a raised, rounded, prominent pustule. 



By the Samarang. Caramata Passage, near Sincapore. Ten 

 fathoms. 



