14 GUDE : NINE NKW SPECIKS OF HELICOID LANI> SHELlS. 



Diam. niaj. 30 niillini. : iiiin. 24 ; alt n;. 



Hah. — Am. 



'J\pe in Miss Lintel's ((jllcction. 



This new sjjecics is allied to C. iliim h-niiiuriilid,^ Tapp., hut it is hiyhcr 

 in the axis, the aperture is less dilated transversely, the last whorl descends 

 more deeply, and the umbilicus is considerably wider. The absence of 

 spiral grooves, and the angulated sutural channel fuither distinguislies it 

 from that species. The rows uf bristles are also [)laced at a different angle. 

 Figures 5a — 5c exhibit the shell in three different [)o.>itions, while hgure 50! 

 shows the periostracum enlarged. 



Pleetotpopis leueoehila, n. sp. 



PI. iii, figs. I a — ic. 

 Shell umbilicated, depressed conoid, rather thin, dull corneous, becoming 

 whitish near the mouth and below ; finel\' striated and decussated with 

 crowded wavy spiral striae under a deciduous cuticle, which is densely covered 

 with transverse rows of elongated raised scales. Spire conoid, suture im- 

 pressed, a{)ex obtuse. Whorls 5|- 5], convex above, tumid below ; the last 

 a little dilated towards the mouth and shortly (descending in front, ol)tusely 

 angulated at the periphery and round the widely perspective umbilicus. 

 Aperture subcircular, oblique, margins convergent ; peristome white, polished, 

 thickened and reflected ; columellar maigin dilated, slightly overhanging the 

 umbilicus. 



Diam. maj. 16 millim., minor 13.5 ; alt. 8.5. 



Hah. — Java. 



Type in my collection. 



In shape the present species resembles P. sumafirma, Mart., but that 

 shell is much smaller, has an acutely keeled periphery and exceedingly 

 minute scales. From P. rofafor/a, Busch., it differs by the more depressed 

 spire, more rounded perij)hery. more reflected peristome and by the umbilicus 

 being more widened near the mouth, showing more of the penultimate whorl. 

 A second specimen is darker than the type and measures : diam. maj. 17.5, 

 min. 15 ; alt. 9.5 millim. 



EXFL.WATIOX OF FLATES 111 & lY. 

 Plate iii. 

 Fi<js. t;i, IC. I'Icctoltopis IciuocUila, n. sp 

 Fijis. 2,1, 2b. Tliiilassia cviiocliiLi, 11. sp. 

 Fi|^s. ;,a, ^h. SitaUi pmiica, !) sp. 

 P'igs. 4a, 4h. J'Jhiliissia u'ci/,'c/;s/s, 11. sp. 

 Fijis. ■-,( — sd. Cl/loritis Uiiti'iac, 11. sp. 



Flaic iv. 

 P'i.;.;s. 6. — be. Cliaropa lifiiaiia. 11. sp. 

 P"i;;s. J. I, jb. 'fivclioiniunui sykcsi. 11. sp. 

 Fig-;. 8 1 — iSc. Cl.'ciropa ochracca. 11 sp. 



Fi^s. (; I — (jd. Eiidodoiita \'Huuniuitoih'u\ qit,iiii-idciis, u. sp. 

 P"igs. lua— IOC Catliaica licniiunni, (Mlldff.), Gude. 

 Fij^s, iia — lie Cathaica sturanyaiia (RoUe), Koh. 



