101 
Tasmania, 1876, p. 136), are identical, as suggested by Woods 
himself, and are synonyms of A. Adelaidensis; but quite distinct 
from Z'rophon Flindersi, of which Woods thought they might be 
varieties. 
Hab.—Streaky Bay to Encounter Bay, on rocks below high- 
tide mark. 
2. R. reticulata, Quoy and Gaimard. 
fef.—Voy. de l’Ast, IT., 566, t. 38, fig. 17, 18. 
Syn.— Purpura humilis, Crosse and Fischer (Jour. de Conch., 
XITTI., 1864, p. 51, t. 2, fig. 2); the type from St. Vincent Gulf. 
Tryon regards these as young shells of the beaded form of 
f. undata, Chem. (Man. of Conch., vol. II., p. 189). This we 
are unable to determine. 
Dimensions.—Crosse gives the dimensions as 12 mm. by 6 mm., 
but it often attains the magnitude of 18 mm. by 10 mm. Its 
station is quite different from that of 2. Adelaidensis, which is a 
littoral shell; for it is dredged alive at 13 fathoms, 1; at 18 
fathoms, 3; while larger specimens have been taken dead at 15 
and 20 fathoms. 
Hab.—Streaky Bay to Encounter Bay. Tasmania. 
GENUS ADAMSIA. 
A. Adelaidze, Adams and Angas. 
ftef.—Proc. Zool. Soc., 1863, p. 421, t. 37, fig. 2. 
Type from Port Adelaide, S.A. 
Tryon, in Man. of Conch., vol. IT., p. 156, gives it as a variety 
of Urosalpinx tritoniformis, Blainville, which he says is identical 
with Adamsia typica of H. and A. Adams, and that Purpura 
neglecta of Adams and Angas is synonymous with A. Adelaide. 
Specimens of the first from N.W. Tasmania (IV. 7. Bednall) are, 
however, easily separable by their more elate form and much 
more numerous spiral lire and scarcely visible incremental strie. 
P. neglecta from Port Jackson (W. 7. Bednall) is also distin- 
guishable as a smaller shell, more elate, and angulate and tuber- 
culo-plicate, and has a closer affinity with Aicinula reticulata, 
Q. and G. 
FAMILY TRITONIDA. 
GENUS TRITON. 
1. T. nodiferus, Lam. 
Ref.—Edit. Desh., TX., 624. 
Syn.—T. Sauliw, Reeve, Proc. Zool. Soc., 1844, 112 ; Conch. 
Icon., 1844, fig. 17; and 7. australis, Lam., Edit. Desh., IX., 
625 (see Tryon Man., vol. ITI., p. 10). 
