Proceedings of the scientific meetings of the Zoological Society of London 1884

Page 432

348 DR. GWYN JEFFREYS ON THE MOLLUSCA OF THE [May 20, outer lip; there is no umbilicus or chink: tooth small but con­spicuous. L. 0*1. B. 00*5. ' Porcupine' Exp. 1870 : Med. St. 55, Adventure Bank. Distribution. Brittany (Cailliaud), G. Tunis (Nares); 50- 100 fms. Differs from O. conoidea in being very much smaller, as well as slender and narrow, instead of conical and angulated. The labial grooves are fewer in number and confined to the front; in O. conoidea these are more numerous and prolonged. And the present species has no umbilicus or chink. 9. ODOSTOMIA ALBELLA, Loven. Turbonilla albella, Lov. Ind. Moll. Scand. p. 19. O. albella, B. C. iv. 121 ; v. p. 211, pi. lxxiii. f. 1. ' Porcupine' Exp. 1870 : Atl. St. Tangier B., Gibraltar. Distribution. Hammerfest to Algiers, Sicily, and the Adriatic, Madeira (Watson) ; 0-40 fms. Fossil. Post-tertiary: Norway, Sweden, and Caithness; 40- 100 ft. 10. ODOSTOMIA RISSOIDES, Hanley. O. rissoides, Hanley, in P. Z. S. pt. xii. p. 18: B. C. iv. p. 122 ; v. p. 211, pi. lxxiii. f. 4. 'Lightning' Exp. St. 5. ' Porcupine' Exp. 1870 : Atl. 13, 30 (var. exilis). Distribution. Christiania, Bohuslan, Baltic, Danish coasts, North Sea, Great Britain and Ireland, N. and W . France and Spain, Mediterranean and Adriatic, off the West of Africa (' Talisman' Exp. 1883), Madeira (Watson) ; 0-777 fms. The variety dubia was dredged in the ' Challenger ' Expedition off Prince Edward Island in 50-150 fms. Fossil. Pliocene : Calabria and Sicily. This common and variable species is apparently Rissoa glabra of Brown, O. scalaris of Macgillivray (a name, however, preoccupied by Philippi), Turbonella transparens of Leach; and I consider the variety dubia to be O. edwardi of Watson. Helix resupinata of Montagu from Walker's figure 24 was probably the fry of the present species. 11. ODOSTOMIA PALLIDA, Montagu. Turbo pallidus, Mont. Test. Br. (ii.) p. 325, t. 21. f. 4. O. pallida, B. C. iv. p. 124 ; v. p. 211, pi. lxxiii. f. 5. 'Porcupine ' Exp. 1870 : Atl. St. Vigo B., Tangier B. Distribution. Bodo in arctic Norway to the Gulf of Egina and the Adriatic ; 2-250 fms. Fossil. Pliocene: Pisa, Calabria, and Sicily. Post-tertiary: Belfast, Clyde Beds, and Sicily. For the rather numerous synonyms see ' British Conchology,' and add O. novegradensis of Brusina.