NASSA. 



Plate XXVI. 



Species 171. (Mus. Cuming.) 



Nassa genicdlata. Nass. testa parvd, ovato-conkd, 

 fulvd, alio variegatd, fascia lata cinereo-fmcd cinctd, 

 transversim striata, loiiffititdiiialiter costatd, costis 

 genicidatis ; columella subcallosd, antice bituberculatd, 

 labro extiis incrassato, ititiis dentato-lirato. 



The knotted Nassa. Shell small, ovately conic, ful- 

 vous, variegated with white, encircled with a broad 

 ash-brown band, transversely striated, longitudinally 

 ribbed, ribs knotted ; columella rather callous, bi- 

 tubercled ; lip thickened outwardly, dentately ridged 

 inwardly. 



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



Hab. Island of Ticao, Philippines (in sand at four fa- 

 thoms) ; Cuming. 



Eather ividely ribbed, the ribs being strongly prickly 

 knotted. The last whorl of the specimen here figured is 

 distinguished by a dark livid-ash band. 



Species 173. (IMus. Cuming.) 



Nassa pusio. Nnss. testd parvd, ovuto-conicd, fulvd, 

 fusco variegatd et maculosa, costelUs plauis longitu- 

 dinalibus confertis ornatd; anfractu ultimo antice sul- 

 cata J columella cum callo nitido subexpamo tectd, la- 

 bro intus sulcato, margine subreflexo. 



The young Nassa. Shell small, ovately conic, fulvous, 

 variegated and spotted with brown, ornamented with 

 close-set rather flat longitudinal riblets ; last whorl 

 grooved in front; columella covered with a rather 

 spread shining callosity; lip gi-ooved within, a little 

 reflected at the edge. 



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



Hab. Sorsogon, Island of Luzon, Philippines (in coarse 

 sand, at six fathoms) ; Cuming. 



Very closely obtusely finely ribbed, the ribs having a 

 rather callous aspect. 



Species 173. (Mus. Cuming.) 



Nassa nigella. Nass. testd acmninato-ovatd, transver- 

 sim sulcata, longitudinaliter granoso-liratd, intus e.v- 

 tusque nigello-fuscd ; columelld subexpansd, nitidd, 

 labro simplici, extus marginato. 



The swarthy Nassa. Shell acuminately ovate, trans- 

 March, 



versely grooved, longitudinally granosely ribbed, 

 swarthy brown within and without ; columella rather 

 expanded, shining, lip simple, margined without. 

 Hab. New Zealand. 



A rather sharjjly acuminated species, granosely ribbed 

 throughout, the uppermost grains being the most promi- 

 nent, of a swarthy brown within and without, including 

 the columeUar enamel. 



Species 174. (Mus. Cuming.) 



Nassa scabkiuscula. Nass. testd ovato-conicd, acumi- 

 natd, fused, luteo fasciatd, longitudinaliter plicatd, 

 striis elevatis asperis spiraliter canceMatd; aperturd 

 rotundatd; labro externa albo, antice fusco-maculato, 

 e.vtus marginato, intus valde sulcato. 



The rough Nassa. Shell ovately conical, acuminated, 

 banded with brown-yellow, longitudinally plaited, 

 spirally cancellated with rough raised striae ; apertiu-e 

 rounded ; outer lip white, spotted in front with brown, 

 margined outwardly, inwardly strongly grooved. 



Powis, Pro. Zool. Soc. July 1835. 



Hab. Bay of Montija, Central America (dredged from 

 sandy mud at a depth of twelve fathoms) ; Cuming. 



Of rather an elongated form, roughly sculptured through- 

 out, with a small aperture, thickly margined outwardly. 



Species 175. (]\Ius. Cuming.) 



Nassa abyssicola. Nass. testd parvd, ovato-conicd, sor- 

 dide alba, costelUs confertis longitudinalibus permul- 

 tis, interstitiis concinne clat/iratis, ornatd ; columelld 

 arcuatd, mediocriter callosd; labro intus dentata-li- 

 rato, extus incrassato. 



The deep-dwelling Nassa. Shell small, ovately conic, 

 dirty white, ornamented with very numerous close- 

 set longitudinal riblets, the interstices between which 

 m'e finely latticed ; columella arched, slightly callous, 

 lip dentately ridged witiiin, thickened without. 



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



Hab. Loay, Island of Bohol, Philippines (dredged from 

 clayey grouud at a depth of sixty fathoms) ; Cuming. 



A small colourless species, densely cancellated through- 

 out, with the whorls slightly margined next the sutures. 



1854. 



