140 Proceedings of the Royal Society of Victoria. 



1880. Philippia luteca, Hutton. Man. N.Z. Moll., p. 70. 



1887. Solarium (Philippia) luteum, Tryon. Man. Conch. 



vol. ix., p. 16, pi. 5, f. 71,72. 

 Hab.— Western Port; Portland (Maplestone) ; Port Phillip. 



Family Adeorbidae. 

 Genus Adeopbis, S. Wood, 1842. 



Adeorbis vincentiana, Angas. 



1880. Adeorbis vincentiana, Angas. P.Z.S. Lond., p. 417., 

 pi. 40, f. 9. 



1888. Adeorbis vincentianus, Tryon. Man. Conch., vol. x., 



p. 86, pi. 30, f. 100. 



Hab. — Flinders, San Remo. 

 Adeorbis, n. sp. 



Hab.— Sorrento (G.B.P.). 



Obs. — This species, as far as we have hitherto been able to 

 examine it, appears new. 



Note. — With regard to the position of Adeorbis, Woodward 

 refers it to the Turbinidae, whereas Fischer and others refer to it 

 as typifying a separate group of family value, namely, Adeorbidae, 

 at the same time removing it from the neighbourhood of Tur- 

 binidae or Trochidae, and placing it near lanthinidae and Sca- 

 laridae. Tryon, again, includes Adeorbis in the family Solariidae, 

 and Professor Tate includes il in the Cyclostremidae, while 

 Adeock, in his " Hand List of the Aquatic Mollusca of South 

 Australia," refers to Adeorbidae as a separate family in the 

 neighbourhood of Cyclostremidae and Turbinidae. 



In view of these conflicting opinions, it is a somewhat difficult 

 matter to know what to do, especially as we have not had any 

 opportunity as yet of examining living specimens, we, therefore, 

 find it most convenient at present to follow Fischer. 



Family Ianthinidae. 

 Genus lanthina, Bolton, 1798. 



Ianthina exigua, Lamarck. 



1839. Janthina exigua, Lamarck. Anim. S. Vert. (3rd 

 ed. Deshayes and Edwai'ds), vol. iii., p. 505. 



