I02 SOWKRDY : DESCRIPTIONS OF FIVE NEW STECIES OF SHELLS. 



rounded and polished, the next slightly convex, decussated with rather 

 strong longitudinal ridges crossed by spiral striae, the ridges and striae 

 become gradually less pronounced on the subsequent whorls, the Inst 

 being almost smooth, excepting towards the base where it is strongly 

 spirally ridged, and at the upper part, where fine close striae and a 

 few more distant ridges are faintly visible. Aperture rather small, 

 oblong-ovate; columella arched in the middle, and slightly recurved 

 towards the base, and furnished above with a small projection marking 

 the entrance to the posterior canal ; -outer lip slightly thickened, very 

 slightly crenulated, and furnished with two or three small tooth-like 

 projections near the posterior end ; anterior cannl short, rather wide, 

 posterior canal narrow and shallow. 



Length 17, breadth 6 millim. 



Hah. — Bird Island, Pacific. 



A small lemon-coloured shell allied to P. nionfrauziefi, Crosse, 



but smaller, proportionately narrower, smoother, and of a different 



colour. 



Vanikoro expansa, n. sp. ri. ix, fig. 3. 



Shell small, wliite, rather solid, obliquely rounded, strongly latticed, 

 with 5 stout nodulous spiral ribs, crossed by numerous stout rounded 

 ridges, the 5 middle ones being the most prominent, the interstices 

 forming deep pits; spire very small, apex acute; whorls 3^, rapidly 

 increasing, first i^ smooth, minute, the next somewhat obliquely pl4- 

 cate : last whorl slightly flattened at the top, with an irregular callus 

 next the suture. Umbilicus moderatel}' open. Aperttu'e wide, rather 

 oblique; lip acute ; interior smooth. 



Length 5, width 6 millim. 



Hah. — North-west Australia. 



This little species may be readily distinguished from its congeners, 

 and notably by the comparative width of its aperture. Several speci- 

 mens of it were found among a quantity of small shells (until recentlv 

 unsorted) brought some years ago by Mr. J. J. AValker from north- 

 west Australia. 



Mangilia eudeli, n. sp. n. i.x, fig. 4. 



Shell white, wiih a very faint zone of {jale buff colour ; spire 

 turreted, acute; whorls 7, the first 3 smooth, sub pellucid, the rest 

 shouldered, and slightly convex with about 13 longitudinal libs which 

 are rendered nodulous by the crossing of numerous s[)iial ridges ; 

 last whorl rather more than half the length of the shell ; sides rather 

 straight. Aperture rather narrow, very slightly attenuated at each 

 end ; interior lirate ; lip thick, crenulated ; posterior sinus rather 

 broad and moderately deep, situated close to the whorl ; anterior 

 canal very short and rather wide. 



