120 
border of the aperture. So also the base, which he gives as 
smooth, has crowded fine curving radial growth lamellz, cross- 
ing about a dozen concentric spiral striz. He figures rightly 
the two spiral ribs as about equal; the central is usually more 
salient, but in different specimens it may be less and less valid 
until it is no more than a distinct angulation. In other indi- 
viduals the lower, supra-sutural, spiral cord, which is usually 
quite valid and imbricating, may be less marked and even 
absent, only the prominent central carina remaining. In one 
example, three whorls in the middle of the shell are markedly 
medially angulate, and not only lack the suprasutural cord, 
which is present in the earlier whorls, but are quite constricted 
here, and afterwards the cord gradually appears in the whorls 
below. The protoconch of two smooth glistening whorls with 
its pointed apex and the earlier spire-whorls are so alike in this 
species and 7’. subsquamosa, Dunker, that the tips of the two 
are indistinguishable from each other. Kiener’s type had a 
length of 48 mm., but the species may attain 53 mm. As 
Tryon says, there are obscure oblique fulvous stripes over the 
whorls with spots on the paler keels; but sometimes the living 
shell is of a uniform dark-purplish-brown, with lighter brown 
encircling ribs. 
It is taken along all the South Australian’ coast as far 
west as Point Sinclair. Dredged alive in 20 fathoms in Gulf 
St. Vincent, and at all shallower depths; dead in 35 fathoms 
off St. Francis Island, 3 very poor; and in 45 fathoms off Nep- 
tune Islands, 1 poor, half an inch long. It evidently does 
not inhabit such deep water as its very close ally 7. swb- 
squamosa, Dunker. ; 
Turritella kimberi, Verco. if) 
Turritella kimberi, Verco, Trans. Roy. Soc., South Australia, 
1908, yol. xxxii., p. 342. pl. xv., figs. 14 and 15. Type locality— 
Backstairs Passage. 
Dredged in Gulf St. Vincent, 1 good; and in 15 to 20 
fathoms off St. Francis Island, 1 good. 
Turritella neptunensis, n. sp. Pl. xxx., fig. 7. pL 73 
Shell imperfect, elongate-turreted, of twelve whorls, in- 
‘cluding a papillate protoconch with a projecting apex, of three 
convex whorls, the first two smooth, the third faintly axially 
striate. The following six spire-whorls are markedly medially 
angulate and minutely carinate, otherwise smooth. The next 
two whorls become quite convex, and have about seven obso- 
lete flat spiral lire, most marked near the carina, which forms 
the central and largest one. The rest of the shell is broken 
