NASSA. 



Plate IV. 



Species 31. (Mus. Cuming.) 



Nassa scalaeis. Nass. testa ovato-tnnitd, pallida, riifo- 

 fuseo sub/asciatd ; sjrird exsertd, acumiiiatd, sidura 

 impressd ; anfractibus longitudinaliter dense costatis, 

 costls ad suturas nodidatis, intentitiis creberrime can- 

 cellatu ; aperturd. paniusculd, cohmelld lamina ex- 

 pansd subcorrugatd, labro simpUci, fame wide liratd. 



The laddek-like Nassa. Shell ovately turreted, pale, 

 obscurely banded with reddish-brown ; spire exserted, 

 acuminated, suture impressed ; whorls longitudinally 

 densely ribbed, ribs noduled at the sutures, interstices 

 very closely cancellated ; aperture rather small, colu- 

 mella with a slightly wrinkled expanded lamina, lip 

 simple, interior strongly ridged. 



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



Hab. Island of Corrigidor, Philippines (in coarse sand at 

 seven fathoms) ; Cuming. 

 An elegantly scidptured shell, resembling Scalaria in 



general aspect. 



Species 22. (Mus. Cuming.) 



Nassa pdlla. Nass. testa ovatd, plicis subrvdihus lonyi- 

 tudinalibus, mlcis transversis dense decussatd, cinereo- 

 carulescente, interdum albizonatd ; anfractibus superne 

 angulatis, ad angulmn uodatis ; columella arcnatd, la- 

 mind lati-expansd callosd orbiculari, fauce liratd. 



The young Nassa. Shell ovate, decussated with rude 

 longitudinal plaits and transverse gi-ooves, ash-blue, 

 sometimes white-zoned ; whorls angled at the upper 

 part, noduled on the angle ; columella arched, with a 

 large wide-spread orbicular callous lamina, interior 

 ridged. 



Buccimnn pulliis, LinnsEus, Syst. Nat. (1 2th edit.) p. 1301 . 

 Nassa pulla, Deshayes. 



Hab. Philippine Islands ; Cuming. 



A solid greenish-ash shell, with a pale central band. 



Species 23. (Mus. Cuming.) 



Nassa nodifera. Nass. testa ovato-conicd, ciuereo-al- 

 bescente, rufo-fuseo sparsini maculatd, longitudinaliter 

 costatd; anfractibus convexis, cost is callosis, uitentibus, 

 ad suturas siihiodosis ; aperturd ova.td, colmnelld ar- 

 cuatd, lamind expansd, callosd, fauce valde liratd. 



The nodifekous Nassa. Shell ovately conical, ash- 

 white, spotted here and there with red-brown, lon- 

 gitudinally ribbed ; whorls convex, ribs callou?, shin- 

 ing, subnodose at the sutures ; aperture ovate, colu- 

 mella arched, with an expanded callous lamina, inte- 

 rior strongly ridged. 



Powis, Pro. Zool. Soc. 1835, p. 95. 



Hab. Galapagos Islands and Panama (in coral sand at 

 fi-om six to ten fathoms) ; Cuming. 



The ribs of this species have a peculiar shining enamel- 

 like appearance. 



Species 24. (Mus. Cuming.) 



Nassa sulcifeka. Nass. testa ovato-ventricosd, cineras- 

 cente, albifasciatd, longitudinaliter subplicatd, trans- 

 versim liratd ; spird productd, acuta ; anfractibus con- 

 vexis, superne angulatis, ultimo sulco subamplo infra 

 mturam; columella arcuatd, callo superne expanso, 

 fauce liratd. 



The geooved Nassa. Shell ovately ventricose, ash, 

 white-banded, longitudinally subplicated, transversely 

 ridged ; spire produced, sharp ; whorls convex, angled 

 at the upper part, last whorl with a rather large groove 

 beneath the suture ; columella arched, with a spread- 

 ing callosity above, interior ridged. 



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



Hah. Algoa Bay. 



Somewhat ventricose in form, with only faint indications 



of longitudinal plaits. 



Species 35. (Fig. a, b, Mus. Cuming.) 



Nassa aeculaeia. Nass. testd ovatd, ventricosd, crassd, 

 cinered vel olivaced, zonuld albd cingulatd, prope api- 

 eem plicatd, deinde leevigatd, nitente, ad basin sulcata ; 

 spird acutd, anfractibus superne angulatis, ad angulum 

 tuberculato-nodatis ; colmnelld arcuatd, interdum callo 

 late expanso erecto orbiculari, fauce liratd. 



The little box Nassa. Shell ovate, ventricose, thick, 

 ash or olive, encircled with a white zone, plicated 

 near the apex, then smooth and shining, grooved at 

 the base ; spire sharp ; whorls angled at the upper 

 part, tubercularly noduled at the angle ; columella 

 arched, sometimes with a broadly expanded erect or- 

 bicular callosity, interior ridged. 



November, 1853. 



