45 
ritta, which we have called Crassatella Antillarum. The Crassatella 
rostrata is a well-known species from Ceylon, and the only large 
one of the genus that is distinctly crenulated at the margin. 
12. CrassaTeLta ciBposa. Sowerby, Proc. Zool. Soc., 1832, 
p- 56; Reeve, Conch. Syst., pl. 44. fig. 2; and Conch. Icon. Cras- 
satella, pl. 1. f. 1. a. and b. 
13. CRASSATELLA CORBULOIDES. Crass. testd suborbiculatd, valde 
. gibbosd, umbones versis profunde sulcatd, epidermide fuscd in- 
-dutd ; latere antico rotundato, postico producto, subitd rostrato. 
Reeve, Conch. Icon. Crassatella, pl. 2. f. 9. 
Long. 14; alt. 1 poll. Mus. Stainforth. 
Hab. ? 
The title of corbuloides is selected for this new and very character- 
istic species, on account of its short gibbous form; the anterior side 
is suddenly beaked, like some of the Corbule, and cannot well be 
confounded with the Crassatella gibbosa, to which it is nearly allied. 
14. CrassaTELLA RADIATA. Sowerby, App. Tank. Cat.; Reeve, 
Conch. Syst., pl. 44. fig. 1; and Conch. Icon. Crassatella, pl. 3. f. 12. 
Hab. ad insulam Singapore. 
This species, originally describéd by Sowerby from a specimen 
belonging to the late Earl of Tankerville, was found by Mr. Cuming 
at the island of Singapore, in coarse sand at seven fathoms’ water. 
15. CRASSATELLA SUBRADIATA. Lamarck, Anim. sans vert., vol. v. 
p- 482; Reeve, Conch. Icon. Crassatella, pl. 3. f. 15. a. and 6. 
I have little doubt but that the shell now before me, from the col- 
lection of the Rev. Mr. Stainforth, is the Crassatella subradiata of 
Lamarck. Unfortunately there does not exist any drawing of it, nor 
does it appear in Delessert’s ‘ Recueil de Coquilles,’ in which M. Chenu 
professes to illustrate all the species described by Lamarck that have 
not yet been figured. 
16. CRASSATELLA CONTRARIA. Lamarck, Anim. sans vert., vol. v. 
p- 481; Reeve, Conch. Icon. Crassatella, pl. 3. f.18. Mus. Stain- 
forth, Saul. 
Venus contraria, Gmelin. 
Venus divaricata, Chemnitz. 
Crassatella divaricata, D’Orbigny. 
Hab. ad insulam Lancerotte, Canariarum. 
I have only seen three specimens of this very interesting shell. 
The above locality is quoted from D’Orbigny’s ‘ Mollusques des Isles 
Canaries ;’ it is the only species of Crassatella he found in that di- 
strict. 
17. CrassaTELuLA ziczac. Crass. testd subtrigond, depressd, lute- 
old, epidermide tenui indutd ; radiis binis interruptis ab umbonibus 
ad margines divergentibus, lineis roseis, flecuosis, ubique pictd ; 
intus subrosaced ; latere antico breviculo, rotundato ; postico sub- 
angulato ; lunuld utrinque radiis roseis vivide virgatd. Reeve, 
Conch. Icon. Crassatella, pl. 3. f. 13. 
