melvill: new species op turrid.i;. 169 



^ Mangelia nanodes, n.sp. (PI. V, Fig. 15.) 



Shell abbreviately fusiform, solid, yellowish white ; whorls 6, 

 two being nuclear, small, globular, the remainder ventricose, much 

 impressed suturally, with longitudinal incrassate smooth ribs, the 

 interstices crossed by coarse infrequent spiral lines ; mouth oblong, 

 outer lip thickened, sinus very obscure, columellar margin inclined 

 to obliquity, canal extremely short. 



Long. 5 '5, lat. 3 mm. 



Hah. — Cuba. 



This petite Mangilia, in which the incrassate longitudinal ribs 

 seem very large, proportionately speaking, is not to be found either 

 in American or British Museums, and Dr. Dall queries it as most 

 probably new to science. The whorls are very tumid, the spiral 

 lines at the interstices coarse, {vavuihp dwarf.) 



Mangelia umbrosa, n.sp. (PI. V, Fig. 16.) 



Shell small, narrow, fusiform, of rude sculpture, dusky-brown 

 with rufous tinge over the body-whorl and orifice ; whorls 7-8 

 (the nepionic being imperfect in the specimens seen), the 

 remainder longitudinally furnished with obtusely-rounded, strong, 

 and frequent ribs, say about fourteen on the body-whorl ; all the 

 whorls ventricose, impressed, and spirally plainly ridged suturally, 

 and crossed by strongly developed spirals, swollen and almost 

 becoming nodulous at the points of junction with the costse. Mouth 

 small, ovate, outer lip slightly expanded, sinus wide but shallow, 

 canal very short, columellar margin oblique. 



Long. 12, lat. 4 mm. 



Hah. — Hirado Hegen, Japan (Hirase). 



This small but roughened species was received from Mr. Y. 

 Hirase through the medium of Messrs. Sowerby and Fulton, and 

 studied well by the late Mr. G. B. Sowerby. We do not know a very 

 near ally. 



Mangelia tanabensis, n.sp. (PI. V, Fig. 17.) 



Shell solid, white, longitudinally multicostate, ribs straight, at 

 first, with the interstices, surrounded with deep revolving sulcate 

 spiral lines, but soon becoming worn, and then are smooth and 

 shining. One example is plain, without bands or coloured lines, 

 another possesses two lines on the upper whorls, and on the body- 

 whorl these are supplemented by a broad chestnut-brown band at 

 the periphery, extending round the shell to the lower part of the 

 outer lip. The mouth is ovate, outer lip white, shining, smooth, 

 thickened, sinus small but well expressed, situate just below the 

 suture. Canal abbreviate, columellar margin smooth. 



Long. 14, lat. 4 mm. sp. maj. ; long. 10, lat. 3'75 mm. sp. nrdn. 



Hob. — Tanabe Kii, Japan (Hirase, No. 1399). 



A pretty, small, but solid shell, many ribbed, surrounded with 

 sulcate revolving lines, the surface being sometimes plain and 

 unrelieved, or lined and banded with chestnut-brown. 



VOL. XV. MARCH, 1923. 12 



