172 MR. G. F. ANGAS ON THE MARINE [Jan. 24, 
proach nearer to the genus Potfamides than any other. When ina 
living state, the ribs have av epidermal fringe of hairs, like T'richo- 
tropis. 
Fam. CreriITHIOPsIDz. 
98. *TRIPHORIS PFEIFFERI. 
Triphoris pfeifferi, Crosse, Journ. de Conch. 1865, p. 47, pl. 1. 
f. 14, 15. 
Station. Deep water. 
Hab. St. Vincent’s Gulf. 
99. *TRIPHORIS ANGASI. 
Triphoris angasi, Crosse, Journ. de Conch. 1865, p. 46, pl. 1. 
tele. 
Station. Deep water. 
Hab. St. Vincent’s Gulf. 
100. TRIPHORIS FESTIVUS. 
Triphoris festivus, A. Adams, Proc. Zool. Soc. 1851, p. 278. 
Station. Deep water. 
Hab. St. Vincent’s Gulf; Port Lincoln. 
Fam. Lirrorinipz&. 
101. LirrorRINA UNIFASCIATA. 
Littorina unifasciata, Gray. 
Station. On stones between tide-marks. 
Hab. Common on all the Australian coasts, from Sydney to Swan 
River. 
102. LirroriNA PHILIPPII. 
Littorina philippii, Carp. Cat. Mazatlan Shells, no. 398. 
Station. On stones and mangrove-trees. 
Hab. Port Adelaide Creek. 
This species is identical with Dr. P. P. Carpenter’s shell from 
Mazatlan. 
103. LirrorinA UNDULATA. 
Littorina undulata, Gray, Zool. Beechey’s Voy. p. 140. 
Station. On stones between tide-marks. 
Hab. Guichen Bay, and Yorke’s Peninsula. It also occurs at 
King George’s Sound. 
104, RisELLA MELANOSTOMA. 
Trochus melanostomus, Gmel. 1789, p. 3581. no. 90. 
Risella melanostoma, Crosse, Journ. de Conch. 1864, pl. 11. f. 1. 
Station. On stones between tide-marks. 
Hab. South Australia. 
Common in Port Phillip; on rocks at St. Kilda. 
