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Show 1882.j 'LIGHTNING' A N D ' P O R C U P I N E ' EXPEDITIONS. 665 ' Porcupine' Exp. 1870: Atl. St. 16, 17, 17 a. Distribution. Norway, Bay of Biscay ('Travailleur' Exp. 1880), New England (Verrill) 1; 100-450 fms. Professor Verrill's notice and figures of this species, which are given with his usual care and accuracy, differ so much from European specimens, that I cannot satisfactorily quote his habitat. C. propinquus is smaller and less swollen than C. jeffreysi, not so contracted at the point; and especially the mouth is not obliquely truncated, but circular. 6. CADULUS JEFFREYSI, Monterosato. C. subfusiformis, B. C. v. p. 196, pl. ci. f. 3. Helonyx Jeffreysii, Monterosato, ' Poche note sulla Conchiologia Mediterranean 1875, p. 10. ' Porcupine' Exp. 1869 : St. 1, 2,3, 4, 6, 9, 10, 14, 16, 22, 23«, 25, 27-30, 61, 89. 1870 : Med. 50, Adventure Bank. Distribution. Norway (and var. tumidula, as C. tumidosus of G. O. Sars, not of me), Shetland, Valentia (west of Ireland), Bay of Biscay (var. tumidula), Mediterranean from Marseilles to the iEgean, Canary I. (' Challenger ' Exp.), Josephine Bank and Azores (' Josephine' Exp.), New England (Verrill) ; 40-1125 fms. Fossil. Pliocene: Calabria and Sicily. C. diploconus, Seguenza. Although it somewhat varies in size, the shell is always much larger and more swollen than C. subfusiformis, to which I had erroneously referred it. 7. CADULUS TUMIDOSUS, Jeffreys. (Plate XLIX. fig. 8.) C. tumidosus, Jeffr. in Ann. & Mag. N. H . Febr. 1877, p. 156. ' Porcupine' Exp. 1869: St. 39. 1870: Atl. 16, 17, 17a (and var. minor), 22, 24, 31-34 (var. minor). Distribution. 'Valorous' Exp., Bay of Biscay ('Travailleur' Exp.), Canaries ('Challenger' Exp.); 1093-1450 fms. Fossil. Pliocene: Messina. Some specimens are faintly or indistinctly striated lengthwise. In all probability many of the species described by Mr. Dall from the ' Blake' dredgings in the Gulf of Mexico and Caribbean Sea, as well as of those described by Mr. Watson from the * Challenger ' Expedition, may ultimately prove to be united with some of the species which I have described. It is very difficult to define the line of variation, and much more that of specific distinction. At all events the above may be considered " forms" if not species. 8. CADULUS AMPHORA \ Jeffreys. (Plate XLIX. fig. 9.) S H E L L resembling in shape an ancient wine-vessel without handles, bulging towards the middle, gently curved, narrowing towards each end but more contracted at the base or point, rather solid, glossy, and opaque: sculpture consisting of a slight but distinct keel which encircles the shell on the upper two fifths of its length ; that part is somewhat excavated or flattened ; no striae of growth are perceptible : Like an amphora. |