2r)8 MR. E. A. SMITH ON THE [Apr. 1, 



thick, produced into acute nodules at the points of intersection, and 

 the quadrate interstices are very deeply pitted. 



Pleurotoma (Clathxjrella?) MULTiGRANOSA. (Plate XXI. 

 fig. C.) 



Testa pnrva, fusiformi-ovata, nigrescens vel rufescens, supra me- 

 dium anfractuum alho zonata, undique granidis albis ct nipres- 

 centibus aut rujis ornata ; anfractus 5|, nudeares li Jeeves, 

 cornei, superne concavi, carinati, cceterl phmiuscuU, costis ad 14 

 lirisque spiralihus sup>ra castas r/rnnosis instructi ; line in anfr. 

 : sup)eriorihus ires, suprema minima, in tdtimo 13-14 ; apertnra 

 angusta, longit. totius | suhaquans ; columella rectiuscula, in 

 medio tubercmlis minutis duobus instructa, callo tenui indutaj 

 labrum vi.v incrassatum, superne brevissime sed distincte sinu- 

 atum. 

 Longit. 4^ millim., diam. 2. 



This species is larger than PL commutabilis, differently coloured, 

 and more closely sculptured. Tlie costse and lirae are so near 

 together that the granules almost touch one another. 



Pleurotoma (Clathurella ?) usta. (Plate XXIII. fig. 4.) 



Testa minuta, fusiformi-ovata, nigricans vel rufescens, interdum 

 serie granulorum albldorum piaulo infra suturam ornata ; an- 

 fract. 5, jjrimi Ig Icevigati, cceteri leviter convexiuscidi, costis 

 12-14 p>aulo obliquis instructi, sulcisque angustis transversis (in 

 anfr. superioribus 4, in idtimo circiter 15) sculpti ; aperiura 

 elongata, angusta, dimidium longit. totius vix cequans ; colu- 

 mella leviter ohliqua, callo tenui induta, in medio interdum indi- 

 stincte incisa ; labrum probabiliter leviter incrassatum, superne 

 vix sinuatum. 

 Longit. 2| millim., diam. Ig. 



The sulci cut through the costse and produce a somewhat gra- 

 nular appearance. The lira beneath the first sulcus below the 

 suture is that which is white upon the riblets in the black variety. 



MuREX (Chicoreus) adustus, Lamarck. 



Hub. "West Indies, Japan, Philippines, Indian and Pacific 

 Oceans. 



In the 'Annals and Magazine of Natural History,' 1875, vol. xv. 

 p. 419, I expressed an opinion that Murex despectus of A. Adams, 

 said to have come from the West Indies, was identical with this 

 species, which is known as an inhabitant of Eastern seas. At the 

 time I doubted the accuracy of the locality given by Adams, but 

 now I am inclined to oelieve it correct, as so many West-Indian 

 shells have also been found on the eastern side of the Atlantic at 

 St. Helena, Ascension Island, and on the west coast of Africa. 



Murex (Ocinebra) sanct^-helen^. (Plate XXIII. fig. 5.) 



Testa fusiformis, cdba, varicibus tribus obliquis, compressis, dentatis, 

 et liris spircdibvs (in anfract. superioribus duohus, in ultimo 



