NASSA. 



Plate XII. 



Species 75. (Mus. Cuming.) 



NaSS.\ Gruneri. Nass. testa ovato-acntd, crassimculd, 

 albidd, livido sen spadiceo trifmciatd, plicis longltudi- 

 imlihm nodiferis sidcisque traiisversis deciissatd, mu- 

 ricatd ; spird hrevi, acutd ; anfractihus planimcuUs, 

 superne angulatis ; col/eine/Id brevilaminatd, basi md- 

 plkatd, lahro cramo. 



Gruner's Nassa. Shell ovately acute, rather thick, 

 whitish, encircled with three livid or fawn bands, de- 

 cussated with longitudinal nodiferous plaits and trans- 

 verse grooves, prickly ; spire short, sharp ; whorls 

 rather flat, angled at the upper part ; columella 

 shortly laminated, one-plaited at the base, lip thick. 



liucchmm. Gruneri, Dunker, Zeitschrift f'iir Malac. 1846. 

 p. 171. 



Hab. Philippine Islands ; Cuming. 



A sharply prickly nodose species, having somewhat a 

 Ricitmla aspect. 



Species 76. (ilus. Cuming.) 



Nassa planicostata. Nass. testd subfusiformi-ovatd, ci- 

 nered, interdmii fascia riifescetde-fuscd ciiigidatd ; spird 

 breviusculd, acutd; atifractibus loncjitudiimliter pli- 

 cato-costellatis, interstitiis conciiine cauceUatis, basi 

 smlcatis ; rolunielld brevi-laniinatd ; aperiurd subaii- 

 guste ovatd, fame liratd, labro incrassato, denticulato. 



The flat-eibbed Nassa. Shell somewhat fusiformly 

 ovate, ash-coloured, sometimes encircled with a red- 

 dish band ; spire rather short, sharp ; whorls longi- 

 tudinally plicately tine-ribbed, interstices neatly lat- 

 ticed, grooved at the base ; columella short-laminated ; 

 aperture rather narrowly ovate, interior ridged. Lip 

 thickened, denticulated. 



A. Adams, Pro. Zool. Soc. March 1851. 



Hab. Payta, Peru (under stones at low water) ; Cuming. 



The riblets become fainter as the shell increases in 

 growth, almost disappearing at the lip. 



Species 77. (Mus. Cuming.) 



Nassa Antillarum. Na.ss. testd ovato-tiirritd, cinereo- 

 fuscd,flavo-fasciatd, oblique plicato-costatd, liris traiis- 

 versis deciissatd ; anfraciibits superne subcoiicavis, deinde 

 rotiimlatis ; c.olumelld subexpansd, basi contortd, labro 

 erasse varicoso. 



The West India Nassa. Shell ovately turreted, ash- 

 brown, yellow-banded, obliquely plicately ribbed, de- 

 cussated with transverse ridges ; whorls rather con- 

 cave round the upper part, then rounded ; columella 

 slightly expanded, twisted at the base, lip thickly 

 varicose. 



Buccinmii Antillarum, Philippi, Zeitschiift fiir Malac. 18-18, 

 p. 139. 



Hab. Cuba. 



Sculptured obliquely with cross-ridged ribs, which are 

 somewhat distant in passing over the rounded portion of 

 the whorls. 



Species 78. (Mus. Cuming.) 



Nassa semiplicata. Nass. testd subanmhmto-omtd, 

 liitescente-aM, rnfo-fusco bifasciatd, longitudiiialiter 

 plicato-costatd, costis tenuibus, in atifractu ultimo exa- 

 nidk ; columelld brevilaminatd; aperfurd parvd, suh- 

 rotundatd, labro erasse varicoso, margine minute den- 

 ticulato. 



The half-plaited Nassa. Shell somewhat acuminately 

 ovate, yellowish-white, encircled with two red-brown 

 bands, longitudinally plicately ribbed, ribs thin, fading 

 away in the last whorl ; columella short-laminated ; 

 aperture small, rather rounded, lip thickly varicose, 

 minutely denticled at the edge. 



A. Adams, Pro. Zool. Soc. March 1851. 



Hab. Chusan; Benson. 



A very characteristic Scalaria-Yike, species. 



Species 79. (Mus. Cuming.) 



Nassa obsoleta. Nass. testd ovatd, solidiusculd, olira- 

 ceo-nigricante, apice erosd; spird bred; anfractibu-s 

 convexo-planis, transversim tenuilirutis, liris Huperjici- 

 ariis subirregularibus ; aperturd parviusculd, colmnelld 

 excavatd, planatd, basi truncatd, labro simplici. 



The obsolete Nassa. Shell ovate, rather solid, olive- 

 blackish, eroded at the apex ; spire short ; whorls 

 convexly flat, transversely finely ridged, ridges super- 

 ficial, rather irregular; aperture rather small, colu- 

 mella excavated, flattened, truncated at the base, lip 

 simple. 



Say, Journ. Acad. Nat. Sci. Philadelphia, vol. ii. p. 332. 



December, 1853. 



