melvill: new species of turrid^. 163 



Drillia anthamilla, n.sp. (PI. IV, Fig. 1.) 



Shell narrowly fusiform, surface rather dull, blackish-fuscous, 

 eleven whorled, of which the apical are smooth, shining, apparently 

 carinate centrally, but the type specimen is a little worn and 

 imperfect in this particular. The lower whorls are suturally 

 impressed just below the sutures, at the summit of each whorl, 

 once spirally acutely keeled, the remaining portion being rather 

 ventricose, longitudinally obliquely multicostate, crossed by, on 

 the four penultimate whorls, three to five spiral revolving lines, 

 gemmulate at the several points of junction with the ribs ; gemmules 

 shining, often pale ; the body-whorl possesses fourteen such lirae, 

 with over twenty closely grained ribs. Mouth narrow, oblong, 

 outer lip not effuse, columellar nearly straight, sinus shallow, but 

 well expressed, canal slightly recurved. 



Long. 34, diam. 9 mm. 



Hah.—i. 



Mr. Edgar A. Smith considered this species an ally of D. cBmula, 

 Angas, from Australia, but the coloration is different, it is larger, 

 with the body-whorl also longer in proportion to the length of 

 spire. To my mind D. maura, Sowerby, a West American species, 

 is akin, but the ribs seem more numerous, and the revolving lines 

 stronger and better developed in the last-named shell. From the 

 figure also of D. appelii, Weink,^ one traces affinity, but this species 

 is described as light-ochraceous in colour, and being indistinctly 

 white banded. The general contour is, however, very similar. 

 {av6d/iu.'\\o'3 rivalling.) 



Drillia cub ana, n.sp. (PI. IV, Fig. 3.) /- 



Shell elegantly fusiform, dark sienna -brown, whorls 8, nuclear ? 

 imperfect in our specimens, the remainder very closely and 

 finely longitudinally costate, say about sixteen on the body-whorl, 

 slightly oblique, warm-brown in colour, with spiral white band 

 just below the sutures. The surface is crossed with uniform spiral 

 raised lines ; these extend very nearly to the base of the body- whorl. 

 Mouth narrow, outer lip rather incrassate, sinus well expressed, just 

 below the suture, columellar margin straight, canal very short. 



Long. 15, lat. 6 mm. 



Hob. — Cuba. 



A striking little shell both in form and coloration. The ribs 

 are particularly nurfterous and fine in character, not in the least 

 incrassate. Indeed, it superficially recalls some small Mitra of the 

 subgenus Turricula. 



Dr. Dall considers it undescribed; and mentions that it belongs to 

 a group of closely allied forms described by Eeeve, Edgar Smith, 

 Orbigny, and others, of some of which there are no authentic 



Conch. Cab., pi. xx, fig. 5. 



