433 



Sh(>ll fusilonn, with pNrainidal spii-c aiul short canal, thin, snionth, shining, ydlowish- 

 whitc with rcHl-hrown bk)tchi's in ;, more; ov less int(MTii|)tccl hands. Whorls 9, of which ahoiit 

 2 form a smooth, convcxly-whorlcil nucleus. Post-nuclear whorls sharply ani^ular, their u|)per 

 part, occupyiuL;' about '-/:; <''" each whorl, sliL;htly concave. Sculpture consistinj;' of numerous, 

 sharp axial ribs, 16 in number on last whorl, with pointed tubercles at the an^le, connected 

 by a rather faint spiral; moreover there are very faint orowthdines and spiral striae, more con- 

 spicuous on the base of last whorl^ especially on the ribs, and a few stronij^er ones on the canal. 

 Aperture oval, angular above, with a short, broad canal bcdow ; peristome broken, probably 

 with very shallow sinus above, columellar margin concave above, directed to the left below 

 along the canal, with a thin layer of enamel. 



Alt. It, lat. 4; apert. alt. 4'/., lat. t^,, Mill. 



Though this shell is evidently not quite adult, the thin peristome being broken, it seemed 

 to differ from all known species, so I have described it; it resembles in many respects the var. 

 tenuis of the preceding species, but cannot be united on account of the number of ribs, which 

 is more than double, moreover the canal is quite different, being short and broad. 



11. Mangilia elegantissinia Melvill & Standen. 



jMelvill & Standen. Ann. Mag. Nat. Hist. Ser. 7, Vol. XII, 1903, p. 319, PI. 23, fig. 23. 

 Stat. 274. 5°28'.2S., 134° 53'. 9 E. Near Aru-islands. 57 M. Sand and shells, stones, i Spec. 



I owe the identification of this species to Mr. Melvill, without his assertion I should 

 not have recognized it, as the number of axial ribs in the Siboga-specimen, seems to be 

 considerably more numerous than in the quoted figure. 



12. Mangilia savuensis n. sp. PI. XXVIII, fig. 13. 



Stat. 306. S°27'S., 122° 54'. 5 E. Savu-sea. 247 M. Sandy mud. i Spec. 



Shell elongately fusiform, with rather short canal, rather strong, yellowish-whitie, with traces 

 of red-brown bands (bleached). Whorls scarcely 9, of which about 3 form a convexly-whorled 

 nucleus, of these about the upper one is smooth, the rest at first faintly, then strongly ribbed, 

 with numerous elegant ribs and traces of a keel near the base of visible part of last nuclear 

 whorl. Subsequent whorls angularly convex, separated by a deep, strongly waved suture. Sculpture 

 consisting of rounded, not continuous, axial ribs, 7 in number on last whorl, crossed by spirals, 

 of which a faint crenulated one, just below the suture, another strong one at the periphery, making 

 the ribs slightly tubercled, and 3 spirals below it on penultimate whorl, 16 on last whorl and 

 canal, moreover a few very faint spirals above the periphery and numerous growth-lines. Aperture 

 elongately oval, wath a sharp angle above and a rather wide canal below; peristome broken, 

 probably with a rather shallow sinus above ; columellar margin nearly straight, with a thin layer 

 of enamel. 



Alt. 9, lat. 3 ; apert. alt. 3^2, lat. i Mill. 



I know no species which is nearly allied to this new one. Mr. Melvill says it is allied 



69 



