518 RET. R. BOOQ AVATSON ON THE 



15. Dentahum dentalis, Linn. ; Linn. Syst. Nat. 1263 ; 

 Born, Mus. 432, xviii. 13. Living in the Mediterranean, the 

 S.W. of France, and the Canaries. 



St. 75 (?). July 2, 1873. Fayal, Azores. 50 to 90 fms. 



Dec. 1873. Simon's Bay, Cape of Grood Hope. Sand and shells, 

 15 to 20 fms. Two fragments, one of them, however, consists of 

 the apex and apical process. 



Mr. Grwyn Jeffreys was good enough to identify these speci- 

 mens for me, their state and the newness of the locality making 

 confirmation specially desirable. 



16. Dentalium jatantjm, Sow. ; Sow. Thes. Conch. Dent. sp. 

 39, f. 12 ; Reeve, C. I. pi. iii. sp. 14. 



Sept. 7, 1874. Torres Strait, C. York. 3-11 fms. 2 young 

 specimens. 



St. 186. Sept. 8, 1874. Lat. 10° 30' S., long. 142° 18' E. 

 Wednesday Island, Cape York. 8 fms. Coral sand. 



St. 188. Sept. 10, 1874. Lat. 9° 59' S., long. 139° 42' E. W. 

 of C.York, Australia, off the S.W. point of Papua. 28 fms. Mud. 

 2 specimens. 



This species is given in B.M. as from Malacca. D. octogonum, 

 L. (which this much resembles), has much stronger intracostal 

 striae, and the ribs are mucb more sharply prominent. 



17. Dentalium ensicultjs, Jeffr. ; J. Gtoyn Jeffreys, Val. 

 Exp., Ann. Sf Mag. Nat. Sist. 1877, six. 154. 



St. 23. Mar. 15, 1873. Off Sombrero Island, St. Thomas, 

 D.W.I. 450 fms. Globigerina-ooze. 9 specimens or frag- 

 ments. 



Mr. G-wyn Jeffreys got this species from St. ] 2, 1450 fms. ; St. 

 16, 1785 fms. ; West of Ireland, 1366 fms. ; Bay of Biscay, 862 

 fms. ; Portugal, 740-1095 fais. 



The bore of the shell lies quite on the convex side, and toward 

 the apex is small. 



18. Dentalium torkatum, W. (Turned as in a lathe.) 



St. 173-4. July 29, 1874. Levuka, Fiji. 12 fms. 6 speci- 

 mens. 

 Shell. — Small, narrow, very finely tapering, slightly but very 



equably bent, strong, of a quill -like translucency and brilliance. 



Sculpture. The upper part of the shell is encircled by deep, 



