120 



border of the aperture. So also the base, which he gives as 

 smooth, has crowded fine curving radial growth lamellae, cross- 

 ing about a dozen concentric spiral striae. 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 T. 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 T. sub- 

 squamosa, Dunker. 



Turritella kimberi, Yerco. 



Turrit ella kimberi, Verco, Trans. Roy. Soc, South Australia, 

 1908, vol. xxxii., p. 342, pi. 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. PI. xxx., fig. 7. 



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 lirae, most marked near the carina, which forms 

 the central and largest one. The rest of the shell is broken 



