KEPOET ON THE GASTEEOPODA. 



539 



2. Bittium, 1 Leach, 1847. 



1. Bittium granarium (Kien.) 



% Bittium lacteum (PhiL) 



3. Bittium reticulatum (Da Costa). 



4. Bittium enode, Wats. 



5. Bittium ambhjterum, Wats. 



6. Bittium mamillatum, Wats. 



7. Bittium amboynense, Wats. 



8. Bittium pigrum, Wats. 



9. Bittium luscinice, Wats. 



10. Bittium philomelm, Wats. 



11. Bittium gemmatum, Wats. 



23. 



Species. 



12. Bittium pupi/orme, Wats. 



13. Bittium oosimense, Wats. 



14. Bittium cylindricum, Wats. 



15. Bittium abniptum, Wats. 



1 6. Bittium delicatum, Wats. 



17. Bittium aedonium, Wats. 



18. Bittium perparvulum, n, sp. 



19. Bittium diplax, n. sp. 



20. Bittium furvum, n. sp. 



21. Bittium xanthum, n. sp. 



22. Bittium leucocephalum, n. sp. 

 Bittium porcellanum, n. sp. 



1. Bittium granarium (Kiener). 



Cerithium granarium, Kiener, Iconographie, p. 72, sp. 57, pi. xix. fig. 3. 



,, „ Lamarck, Anim. s. vert. (ed. Desh.), vol ix. p. 323, sp. 63. 



„ „ Menke, Moll. Nov. Holl. Specimen, p. 20, No. 84. 



Sowerby, Thes. Conch., vol. ii. pt. 16, p. 879, pi. clxxxiv. figs. 225-227. 

 Bittium granarium, Angas, South Austral. Moll., Proc. Zool. Soc. Lond., 1865, p. 171, No. 95. 

 Angas, Port Jackson Moll., Proc. Zool. Soc. Lond., 1867, p. 208, No. 135. 



April 17, 1874. Port Jackson, Sydney, Australia. 2 to 10 fathoms. 

 Station 163b. June 3, 1874. Lat. 33° 51' 15" S., long. 151° 22' 15" E. Port Jack- 

 son, Sydney, Australia. 35 fathoms. Hard ground. Bottom temperature 63°. 



Habitat. — Timor (Kiener) ; Port Jackson, also St Vincent's Gulf, common under 

 stones at low water (Angas). 



2. Bittium lacteum (Philippi). 



Cerithium, lacteum, Philippi, Enumeratio MolL Sicil., voL i. p. 195, sp. 6, pi. ii fig. 162. 



„ algonanum, Sowerby, Thes. Conch, voL ii. pt. 16, p. 878, sp. 129, pi. clxxxiv. figs. 230, 



231. 

 „ elegans, Weinkauff, Conch. Mittelm., vol. ii. p. 161. 



„ „ Jeffreys, Med. Moll., Ana and Mag., July 1870 (4th ser.), voL vi. p. 17. 



,, „ Fischer, MolL Ocean. France, Soc. Linn. Bordeaux, No. 491. 



Cerithiolum lacteum, Monterosato, Enumerazione, p. 38. 



„ ,, Seguenza, Formaz. Terz. Calabria, pp. 263, 319, 354. 



February 10, 1873. Tenerife, Canaries. 70 fathoms. 



1 Tiberi in 1869 proposed for this group the name of Cerithiolum, and Monterosato (Nomenclatura gen. e 

 specii di alcuno Conch. Mediterr., p. 121), has adopted this name in the mistaken idea that Bittium was pre- 

 occupied among the Crustacea. 



