Rete us, | 
220 
Family TRICHOTROPID A. s2eZ < Senoss 
1438, 
Genus LiprisrEs, Montfort. ect’ 
Lippistes separatista, Dillwyn, sp. PI. ix., figs. 6 to 9. 
Turbo helicoides, Gmelin, Syst. Nat., p. 8598, No. 109; Turho 
separatista, Dillwyn, Conch. Cab., vol. x., p. 298, pl. clxv., figs. 
1589, 1590; Cat. Recent Shells, ii., p. 867, 1817; Wood, Ind. 
Test., p. 151, pl. xxxii., f. 126, 1825; Separatista chemnitzii, A. 
Adams, Proc. Zool. Soc., Lond., 1850, p. 45; Tryon, Man. Conch., 
ix., p. 45, pl. vili., f. 70; Rep. Challenger, Zool., Ned 428 ; 
Trichotropis tricarinata, Brazier, Proc. Linn. Soc., N.S.W., 1877, 
i., p. 818; Separatista separatista, Dillwyn, Hedley, Records Aust. 
Mus., iv., No. 3. 1901, Ri 126, pl. xvii., f. 22; Lippistes separa- 
tista, Dillwyn, Hedley, Proc. Linn. Soc., N.S.W., 1902, p. 24; 
Trichotropis blainvilleanus, Petit, Journ. de Conch., ii., 1851, p. 
22, pl. i., f. 5; Tryon, Man. Conch., 1887, ix., p. 45, pl. viii., f. 
69; Trichotropis gabrieli, Pritchard and Gatutt Proc. Roy. Soe. 
Vict., 1889, p. 183, pl. xx., f. 7; ibid, 1900, vol. xili., p. 142. 
Some years ago five shells were dredged by me, all dead, 
one in 134 fathoms in Investigator Straits, off Point Marsden, 
Kangaroo Island; two in 16-18 fathoms, Backstairs Passage, 
and two in deep water, exact station unrecorded. 
This form was named and described by me in manuscript 
as a new species chiefly because its whorls were curiously 
polygonal, with a tubercle on the carinz at each angle. See 
pl. ix., fig. 6. But in 1899 I had the opportunity at the 
Natural History collection of the British Museum in London, 
of comparing it with various species of the Trichotropida, and 
Mr. E. A. Smith kindly assisted me. 
Lippistes helicoides, Gmelin, from the Philippine Islands, 
with four shells on the tablet, were identical. On the back 
of the tablet carrying them was the following: —‘“‘Turbo heli- 
cvides, Gmelin,” which meant that Mr. E. A. Smith had com- 
pared these four shells with Gmelin’s description and found 
them to correspond. Gmelin’s types are unknown; possibly 
he described only from a figure found elsewhere. Also, 
“Separatista chemmnitzii, A. Ads., P.Z.S., 1850, p. 45, types, T. 
Bureas, Phil., H. Cuming.” This means that these shells were 
in Cuming’s collection, were obtained from Bureas Island, in 
the Philippine Islands, and are the types of S. chemnitzi, A. 
Ads. Also, “Mekran coast in Coll. Melvill,’ signifying that 
shells in Melvill’s collection from the Mekran coast had been 
compared by E. A. Smith, and found to be identical. Mine 
were demonstrably conspecific, and Adams’s shells were found 
to possess the same polygonal form, with the tendency to tu- 
berculation at the angles. There is no question about the 
identity of our shell with Adams’s species, and as this has 
been made a synonym of Dillwyn’s species, Dillwyn’s name 
_ should be accepted by us. 
| 



