186 MR. E. A. SMITH ON MOLLUSCA FROM JAPAN. [Feb. 18, 



Terebra described by me as granulosa in the Ann. & Mag. Nat. 

 Hist. 1873, vol. xi. p. 208: I propose to call this uiteresting 

 Japanese form T. pustulosa. 



9. Pleukotoma fusca, van, Hombron & Jacquinot. 

 Pleurotoma fusca, var., Hombron & Jacquinot, Voyage 'an Pole 



Sud, Zoologie, vol. v. p. Ill, pi. 25. figs. I'J, 20. 



Shell fusiform, pale horn-colour, with a white baud round the 

 middle of the whorls, brownish at tlieir upper part : whorls 10 ; first 

 three convex, the rest strongly keeled above at the suture ; beneath 

 this keel they are concavely sloping, prominently carinated at the 

 middle, the carina being white and bearing small close-set nodules ; 

 beneath and above this series of nodules the whorls are ornamented 

 with three or four spiral thread-like lirre and oblique lines of growth; 

 last whorl whitish at the lower extremity, with a brownish somewhat 

 indistinctly defined band around the middle, and encircled with 

 about 1 5 liros below the white carina ; mouth and canal occupying 

 rather less than half the entire length of the shell ; slit in the labrum 

 small, situated at the termination of the prominent white keel ; canal 

 narrow, produced, and a little recurved. 



Length 17 miilims., diam. 5. 



Hab. Stations 1 and 21. "Torres Straits" {Hombron ^- Jac- 

 quinot). 



Although in some respects like the Californian P. (jemmata. 

 Hinds, nevertheless, on comparison with that species, the present 

 one appears sufficiently distinct for specific rank. It has a less 

 slender spire and is strongly carinated beneath the suture, whilst P. 

 (jemmata is described by Hinds as having two small keels parallel 

 with the suture ; and Reeve (' Conchologia Iconica,' i. sp. 83) refers 

 to these keels as " two very distinct elevated lines." A second, 

 rather deep sinus is situated in the outer lip, about halfway between 

 the suture and the caudal extremity. This character is not referred 

 to by Hombron & Jacquinot; but if the labrum of tlieir single spe- 

 cimen were broken (and this is very jiossible, judging from the figure 

 of it), of course the slit would not be present. The name fusca 

 has been employed earlier for a species in this family by C. B. Adams ; 

 but as that belongs to a different section, I think it unadvisable to 

 alter the name of the present. 



10. Pleurotoma marmorata, Lamarck. 



Pleurotoma marmorata, Kiener, Coq. Yiv. pi. 6. fig. 11; Reeve, 

 Conch. Icon. vol. i. fig. 21; jun.=P/. hastula, Reeve, I. c. fig. 139. 



Huh. Station 21. 



Other localities are : — the Straits of Malacca; Shanghai; Ticao, 

 Philippines ; and Ovalau, Fiji Islands. 



1 1 . Pleurotoma vertebrata, Smith. (Plate XIX. figs. Q-6 a.) 



Hab. Stations 21 and 27- 



The description of this species in the ' Annals and Magazine of 

 Natural History,' 1875, vol. xv. p. 416, was based upon specimens 



