366 Mr. Braderip and Mr. G. B. Sowerby ow some 



catis, ad marginem inferiorem gradatim descendentibus ; long. 1, 

 lat. yV» «^<- /o, poll. 

 Hah. ad littora Oceani Pacifici. 



This elaborately ornamented shell looks at first sight like a piece of 

 Chinese carving. From Mazatlan. 



Cardium Belcheri. 

 Tab. IX, Fig. 3. 

 C. testd obovatd, subobliqud, costis radiantibus 24, posticis muricatis, 

 mediis serratiSy anticis fquatuor vel quinquej tuberculiferis ; mar- 

 ginibus anticis acuU serratis ; long. 1^, \^-^, alt. l-j^^, poll. 

 Hab. in Oceano Pacifico. 



A very handsome species, of which only three specimens were dredged 

 by Lieut. Belcher at sea, to the northward of Isabella Island, at the en- 

 trance of the Gulf of California, in 15 fathoms. It is of an obovate 

 form, rather oblique, with 23 or 24 radiating ribs ; those of the poste- 

 rior side being furnished with compressed teeth, all turned one way ; the 

 middle being serrated, and the three or four anterior ribs, instead of 

 these compressed teeth, having rather distant prominent tubercles : the 

 teeth are all placed along the posterior edge of the ribs, and are remark- 

 able for being smooth and shining on the anterior, while they have a dull 

 surface on the posterior side : of the ribs themselves, the upper anterior 

 surface alone is polished. The general colour of this shell is orange 

 yellow, which is darker in front, and more inclined to red at the poste- 

 rior part. 



^' * Cardium Radula. 



C. testd rotundatd, costis numerosis, dorso angulatis et ad latera mu- 

 ricatis, tuberculis obliquis ; long. !/„, lat. lyV? ^^t' 1/^j P^H- 

 Hab. 



In general appearance this resembles C. muricatum ; it differs from it, 

 however, in form, and in the ribs being angular at both edges. In Mr. 

 Bland's collection. » 



*Cardium punctulatum. 



C. testd suborbiculari, costis 22 elevatis, rotundatis, et interstitiis an- 

 gulatiSf punctulatis; long. ly%, lat. \^, alt. \^\, poll. 

 Hab. 



