NASSA.— Plate I. 



An interesting species, intermediate in its characters 

 between N. Mrta scaA papillosa. 



Species 4. (Mus. Cuming.) 



Nassa suturaus. Nass. testa ovato-twrltd, aliidd, cine- 

 raicente-carneo rnarmoratd, lirwis fllforuiiitis intense 

 rufa subaquidMaiitiiu-s reffulariter cingidatd ; spird 

 acuta, subcanaliculatd ; anfractihis l-avibiis, mtenti- 

 bm, superne angul.atk et nodoso-coronatk : aperturd 

 ovatd, siipenii conspicue enmrginatd ; columella caUosd, 

 mherpatim, labro antice crenulato. 



The sctueal Nassa. Shell ovately turreted, whitish, 

 marbled with light ash flesh tint, and encircled regu- 

 larly with nearly equidistant deep red thread-like 

 lines ; spire sharp, subchannelled ; whorls smooth, 

 shining, angled and nodosely coronated at the upper 

 part ; aperture ovate, conspicuously emarginated at 

 the upper part ; columella callous, a little expanded, 

 lip crenulated in front. 



Biiccimim sufurale, Lamarck, Anim. sans vert. (Deshayes' 

 edit.) vol. X. p. 166. 

 Ka4isa mturalk, Deshayes. 



Uab. Island of Burias, Philippines (in sandy mud at ten 

 fathoms) ; Cuming. 



An elegant faintly mottled shell, encircled throughout 

 at about equal distances with deep red lines. The spire 

 is channeOed and uodoselv coronated. 



Species 5. (Mus. Cuming.) 



Xassa GL.VNS. Nass. testa ovato-conicd, Itevi, albd, ni- 

 terite, vstulato-hdeo nebulosd, linek intense rufs agui- 

 distantibus regulariter cingulatd ; spird acuminatd, 

 prope apicem longittidinaliter plicatd ; anfractiius su- 

 perne plano-angulatis ; aperturd ovatd, superne emar- 

 ffinafd, labro antice denticulis muricato. 



The acorn Nassa. Shell ovate, conical, smooth, white, 

 shining, clouded with burnt j'eUow, encircled regularly 

 with equidistant deep red lines; spire acuminated, 

 longitudinally plaited near the apes ; whorls flatly 

 angled at the upper edge ; aperture ovate, emargi- 

 nated at the upper part, lip prickly in the front with 

 denticles. 



Buccinum. glans, Linnaeus, Syst. Nat. (1 2th edit.) p. 1200. 



Hab. Philippine Islands ; Cuming. 



A well-known species, characterized, like the preceding, 

 by being encircled throughout with conspicuous equidistant 

 red lines. 



Species 6. (Mus. Cuming.) 



Nassa mutabilis. Nass. tsstd ovato-conicd, l^eeri, nitidd, 

 prope apicem. longitudinaUter plicatd, fuho-rufo aut 

 luteo nebulosd; spird acutd ; an/ractHus contexis, 

 prope suturas fascia alia riifo-maculatd cinctis ; aper- 

 tnref fauce sulcatd. 



The changeable Nassa. Shell ovately conical, smooth, 

 shining, longitudinally plaited near the apex, clouded 

 with fulvous-red and yellow ; spire sharp ; whorls 

 convex, encircled at the suture with a red-spotted 

 white band ; interior of the aperture grooved. 



Buccinum mutabilis, Linnaeus, Syst. Nat. (12th edit.) p. 

 1201. 



Buccinum. gibbum, Bruguiere. 

 Nassa gibba, Eoissy. 

 Buccinum foliosum, ^ood. 



Hab. Mediterranean. 



Readily distinguished by its mottled colouring and 

 sutural red-blotched band. 



Species 7. (Mus. Cuming.) 



Nassa MARMOREA. Nass. testa orato-conicd, l<pri, ni- 

 tidd ; spird subacumin<dd ; albidd, luteo-/?iseo trifas- 

 ciatim rnarmoratd ; anfractibiis plumusculis, supemi 

 subcontract is ; coluinelld subcorrugaid, labro extut va- 

 ricoso, intus sulcata. 



The marbled Nassa. Shell ovately conical, smooth, 

 shining : spire a little acuminated ; whitish, marbled 

 in three bands with yellowish-brown ; whorls rather 

 flat, rather contracted about the upper part ; colu- 

 mella slightly wrinkled, Hp varicose without, grooved 

 within. 



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



Hab. Cayayan, Island of ilindanao, Philippines (in sandy 

 mud at twenty-five fathoms) ; Cuming. 



A smooth rather solid shell, contracted about the su- 

 tures ; bluish-white, encircled with three mottled yellowish- 

 brown bands. 



