121 
away. Suture distinct, faintly margined. The accremental’ 
striz indicate a slightly concave outer lip. 
Dim.—Length, 6 mm.; breadth 1-4 mm. 
Locality.—Type dredged in 104 fathoms 35 miles south- 
west of Neptune Islands, with three others, all imperfect. 
Deagnosis.—Though incomplete, its characters are so dis- 
tinct as to readily separate it from all other South Australian: 
forms. It resembles 7’. kimberi, Verco, in its long narrow 
form, its simple mouth and spiral strie; but 7. kimberi has 
a very acute apex, its whorls are all convex, and its spirals 
are narrower and higher. It differs from 7. atkinsoni in its 
smaller size, narrower form, and the roundness of its later: 
whorls. 
Type in my collection. 
Turritella smithiana, Donald. 
Turritella (Colpospira) Smithiana, Donald, Proc. Mal. Soc.,. 
London, 1900, vol. iv., p. 55, No. 1, pl. v., figs. 1 and le. Type 
locality —410 fathoms off Sydney. Hedley, Memoirs Austr. Mus.,. 
1903, vol. iv., part 6, p. 349, is ‘not Australian, but probably 
an Atlantic form’’; Hedley and May, Records Austr. Mus., 1908, 
yol. vii., No. 2, p. 110, in 100 fathoms off Cape Pillar, Tasmania; 
Gatliff and Gabriel, Proc. Roy. Soc., Victoria, 1909, vol. xxii. 
(N.S.), part 1, p. 89, San Remo. 
Dredged in 130 fathoms off Cape Jaffa, 1 good: in 150) 
fathoms off Beachport, 1; in 200 fathoms, 1: in 300 fathoms, 
32 good, but all dead. 
Turritella mediolevis, n. sp. Pl. xxx., figs. 5 and 6. 3 60 
Shell small, elongately-turreted, narrow, of eleven whorls, 
including a slightly eccentric protoconch of two convex smooth 
whorls. The spire-whorls at first are flat and sloping, but 
later gradually become more convex, until they are quite 
round. The suture is distinct, subcanaliculate in the earlier 
part. The base is round. Aperture nearly round, widely 
effuse in front. Outer lip thin, with a deep central sinus ; 
inner lip thin, rather expanded over a minute perforation. 
The upper spire-whorls are smooth but for two indistinct 
bands, one below and one above the suture. In the fifth 
whorl each of the bands divides into two, and these increase 
in number in successive whorls, leaving the central part. 
smooth (whence the specific name) but gradually narrowing, 
until in the penultimate there are about eight somewhat un- 
equal low flat spirals encircling the whole surface. In the: 
body-whorl there are about fifteen flat spirals from the suture 
to the base of the shell. They are crossed by sinuous axial 
striz, shaped like the outer lip. Colour white, light-brown at. 
the base and below the suture. 
