Ac 
Lge toaca Mitromorpha-incerta, Pritchard and Guth 7BE 
330 
Locality.—Type from 110 fathoms off Beachport, with 3 
others very good; in 55 fathoms off Cape Borda, 3 good; in 
200 fathoms off Beachport, 1 good. 
It is much more attenuate than J/. alba, Petterd, and 
has only the one suprasutural row of spots. It may possibly 
be an extreme variant. 
. Soc., 
Victoria, 1902, vol. xiv. (N.S.), part 2, p._ 181, pl. set fig. 1 
aehe poor); ibid, op. cit., 1906, vol. xviii., p. 50, “Western 
ort.’ 
To the author’s definition I may add that the protoconch 
is conical, of three whorls, subconvex, suture shallow, whorls 
minutely granulated in spiral rows, fifteen in the third whorl. 
The length is 41 mm.; of the body-whorl, 2°8 mm. ; and 
breadth, 16 mm. 
Dredged in Gulf St. Vincent and Backstairs Passage, 
depth not noted, 17 fresh and dead ; in 15 to 20 fathoms off 
St. Francis Island, 2 very poor: in 35 fathoms, 2 poor; in 
62 fathoms north-west of Cape Borda, 1 good and 3 poor; 
in 90 fathoms off Cape Jaffa, 1 poor; in 104 fathoms off Nep- 
tune Islands, 1 poor. 
T have called it a Mitromorpha rather than a Mangilia, 
although it has no visible labial nodules or plaits, because it 
seems very closely allied to Jf. alba, var. axiscalpta, above 
described. 
Mangilia incerta, Pritchard and Gatliff, Proc. 
e 
Ai ha axicostata, n. sp. Pl. xxviii, fig. 4: GF 
Shell solid, elongate-oval, of 6 whorls, including the 
pointed protoconch of 24 smooth convex whorls. Spire-whorls 
slightly convex. Suture simple, margined by a flat, narrow 
band. Base moderately contracted. Aperture elongate-oval, 
slightly constricted into a short, open canal. Outer lip thin, 
simple, convex in profile, with a shallow, wide depression just 
below the ascending suture. Inner lip complete, an applied 
thin glaze, callous at the suture. Columella long, nearly 
straight, slightly prominent at junction with concave base of 
body-whorl. No definite plait. Oblique rounded axial costz, 
as wide as the interspaces, absent from the base, and vanish- 
ing towards the aperture. Spiral lire flatly convex, wider 
than their spaces, cross the ribs, nine in the penultimate, 
twenty-five in the body-whorl. 
Dim.—Length, 4°9 mm.; of the body-whorl, 2'4 mm. ; 
breadth, 2°1 mm. 
Locality.—Type from 104 fathoms 35 miles south-west 
