202 MR. BRODERIP’S DESCRIPTIONS OF SOME 
17. CALYPTRHA STRIATA. 
Tab. XXVIII. Fig. 6. 
Cal. testd sordidé alba, suborbiculatd, subconicd, subturbinatd, striis longitudinalibus ele- 
vatis creberrimis corrugatd, intus fusco-flavescente. 
Diam. +2 poll., alt. =3,. 
Hab. ad Valparaiso. 
Found on shells in sandy mud, at a depth varying from forty-five to sixty fathoms. 
18. CaLyprR#&a CONICA. 
Tab. XXVIII. Fig. 7. 
Cal. testé conicd, fuscd albido maculatd, subturbinatd. 
Diam. 14 poll., alt. ,%. 
Hab, ad Xipixapi et ad Salango. 
Found attached to shells in deep water. 
Subgenus CrepipaTeia, Less. 
Lamina rotundata, apice laterali et subterminali. 
19. CaLyprR@a FOLIACEA. 
Tab. XXVIII. Fig. 9. 
Cal. testé suborbiculari, albidd, foliaced, ints castaned vel albé castaneo varia. 
Diam. | poll., alt. 2. 
Hab. ad Aricam Peruvie saxis adherens. 
This Crepipatella, which bears no remote resemblance to the upper valve of some of 
the Chame when viewed from above, was found on exposed rocks near the shore. 
20. CaLypTR&A DORSATA. 
Tab. XXVIII. Fig. 10. 
Cal. testé subalbidd, planiusculd, costis longitudinalibus irregularibus rugosd, intus medio 
fusco-violaced. 
Diam. + poll., lat. +. 
Hab. ad Sanctam Elenam. 
The back of this shell is not unlike the upper valve of some of the Terebratule. 
Found on dead shells in sandy mud, at a depth of six fathoms. 
