■48 
Tom Iredale. 
was also close I'i bod from novth-wostorii Australia, by wliieli Filsbry iuteiided 
Port Darwin, whioh is politieally in the Xorthern Territory. An earlier 
name still inav bo siihgriinosa Le (iiiillou, and tbo .slioll has also boon known 
as prmmm Fornsaae, whiob has boon shown to be very ditTorent. Misled by 
tlie ineorroft assooiatioti, llodloy eonfu.sod the shell, Kimhnragn mirrow phala, 
and thn.s inoluded forreationa in his W.A. list.] 
Genas TOKEESITRACHIA I redale l!t33. 
1933 — Torresitrachia Iredale, Rec. Austr. ilus., Vol. XIX,, p. 55, Aug. 2. 
Orthotypo eiuleavonrensis Brazier. 
Shell snbdisooidal, sjriro a little obtusely elevated, citreous, whorls 
rounded, sutures impressed, periphery rounded, mouth aubeireular, open, 
outer lip thin, reflected all round, a little thickened basally, columella almost 
straight, a little relleeted, umbilicus narrow, deej), ojien, showing coiling and 
not obscured by colnmellar reflection. Coheration greenish white, unieolor. 
Ap)e.\ smooth, adult sculpture close radial ribbing almost ridges above, base 
smooth save for growth striae. 
This Xorth Queensland style of shell appears to travel along the north 
coast into Xorth-West Australia. 
Torresitrachia bathurstensis Smith 1894. 
Plate 3, Fig. 2. 
1894 — Hfili.f {Trachia) Smith, Proe. Malac. Soc. (Loud.), Yol. 
I., p. 93, pi. VII., tig. 2(1, June. Heywood Island and Bathurst 
Island, King Sound, X.IF. Australia. 
A curious complication is seen in the tact that the specific name is taken 
from one island, and the type shell came from the other; these islands lie 
at each side of the Sound and the species are probably distinct on each 
island. Curiously enough the specimen before me, collected by IMr. J. J. 
Walker, is a'jtaratype, but it has no definite locality. 
This specimen is very like the species of Tnrrenifrachia but can l)e se])ar- 
ated by the liner, closer, and more regular character of the costulation. The 
tyj)e from lieywood Island measured 15.5 mm. in breadth by the height 
omitted, while the Bathurst Island shell was 13.5 min. in breadth, again no 
height being given. The paratype abovementioned and bere figured measures 
14.5 mm. in breadth and is 8.5 mm. in height. The ribbing on the base is 
stronger than on (he base of the (Queensland shells, but is not as strong as 
on the uppei- surface nor is it regular. 
Torresiti'achia monticola s]). nov. 
Plate IIP, fig. 13. 
The species of Torresit rachia are found on the islands of Torres Strait 
and along the north coast of (Queensland. The occurrence of similar shells 
on the islands otf the Xorth- \Ve«t Coast was unexpected, but not so surprising 
as the recognition of a form among the shells collected by W. W. Froggatt 
in the Barrier (Xa])ier) Range, many miles inland. 
This siiecies is flattened, snbdisooidal, wborls rounded, openly narrowly 
umbilicate, mouth subcircular, open, lips thin I’ellected, columella arcuate. 
The apex is smooth, a subvarix sej)ai’ating this from the adult sculpture 
which consists of deep well separated very regular costulations, which con- 
tinue onto the base where how'cver they are less marked. Coloration trans- 
