4^6 



Shell broadly pyramidal, with short canal, yellowish-white, stained with brown and with 

 a few waved, white streaks. Whorls 9, of which about 2 form a smooth, convexly-whorled, 

 brown-tinged nucleus. Subsequent whorls slightly contracted above, not very convex below, 

 separated by a conspicuous, slightly waved suture ; sculpture consisting in the excavation of a 

 strong liration, single in upper whorls, divided lower on by a groove, and correspondingly adorned 

 by a single or double row of beads, below this, 2 narrow lirae run still in the excavation -, lower 

 part of whorls with a larger number of lirae, 6 in penultimate whorl, about 25 in last whorl, 

 inclusive of canal, with more or less conspicuous intermediate ones in many interstices. These 

 lirae are crossed by oblique, on lower whorls by waved ribs, more conspicuous and remote on 

 upper whorls, closer and fainter on last one, producing beads where they are intercrossing, 

 the last whorl having the appearance of being more or less regularly beaded all over. The 

 brown colour is very irregularly divided, on the infrasutural band it is nearly continuous but 

 on the body-whorl darker brown beads alternate with lighter or even white ones. Last whorl 

 rather convex, attenuated below, ending in a short, rather broad canal. Aperture oval, with a 

 wide sinus above, peristome thin, regularly arcuate, columellar margin concave, running in the 

 canal, which is wide and slightly directed to the left; interior of aperture bluish white, colum- 

 ella with a thin layer of white enamel. 



Alt. 15, lat. 6; apert. alt. 6^/^, lat. 2^3 Mill. 



I know no species which is nearly allied to this one, in sculpture it resembles somewhat 

 D. digitalis Reeve, but not at all in shape or colour. 



26. Drillia Dunkeri Weinkauff. 



Weinkauff. Martini-Chemn. Conch. Cab. Ed. II, Vol. IV, Pleurotoma, p. 75, PL 16, fig. 2. 

 Tryon. Man. of Conch. Vol. VI, p. 179, PL 8, fig. 24 [lunbilicata jun.). 



Stat. 71. Makassar and surroundings. Up to 32 M. Mud, sand with mud, coraL i Spec. 



The Siboga-specimen is larger than Weinkauff's one, (38 instead of 31 Mill, in length), 

 but otherwise it agrees as well as can be desired, with his description and figure; Weinkauff did 

 not know its locality. Tryon says (1. c.) it is an immature D. umbilicata Gray, the quoted 

 localities are "Sierra Leone (Gray); West-Indies (Swift)"; the Siboga-specimen has not at all a 

 juvenile appearance and this circumstance, connected with the remote locality, may plead for my 

 opinion that the two species may stand. As I have seen no other specimens, I cannot insist 

 on the other important differences in shape and particulars of aperture, between the existing figures. 



27. Drillia dejecta Smith. 



Smith. Ann. Mag. Nat. Hist. Ser. 6, VoL II, 1888, p. 306. 



Stat. 260. Near North point of Nuhu Jaan, Kei-islands. 90 M. Sand, coral and shells, i Spec. 

 Stat. 285. South coast of Timor. 34 M. Limit between mud and coral. Lithothamnion. 

 7 Spec. 



The Siboga-specimens vary a little in size, but they all agree in sculpture. 



52 



\ 



