Plate XVII. 



Species 110. (Mus. Cuming.) 



Nassa versicolor. Nass. tedd ovato-conkd, hdescente, 

 ad hasi II fascia rufo-fuscd cinijiihitd ; suturd nigricante- 

 fuscd; anfractihm rotmtdatis, tratisversim striatis, 

 loiigitudiuaUter fortiter coatatis ; aperturd parvd, co- 

 lumelld suhcallosd, labro varicoso. 



The varicoloured Nassa. Shell ovately conic, yel- 

 lowish, eneircled with a broad red-brown baud at the 

 base ; suture blackish-brown ; whorls rounded, trans- 

 versely striated, longitudinally strongly ribbed ; aper- 

 ture small, columella rather callous, lip varicose. 



C. B. Adams, Cat. Shells of Panama, p. 66. 



Hai. Panama. 



Sculptured throughout with strong ribs over rounded 

 whorls. 



Species 111. (Mus. Cuming.) 



Nassa complanat.a.. Na-ss. tedd ovatd, oUvaced vel ci- 

 nered, luteo-faxiatd, lomjitudinaliter oblique granoso- 

 plicatd ; anfractu ultinw plus minim complanato ; aper- 

 turd parvd, fatice liratd, colmiiMd siiiiplici, labro va- 

 ricoso. 



The smooth Nassa. Shell ovate, olive or ash, banded 

 with yellow, longitudinally obliquely granosely plaited; 

 last whorl more or less smooth ; aperture small, inte- 

 rior ridged, columella simple, lip varicose. 



Powis, Pro. Zool. See. 1835, p. 96. 



Hab. Atacamas, West Columbia (under stones) ; Cuming. 



Obliquely grain-plaited from the apes downwards, the 

 plaits partially disappearing on the last whorl. 



Fig. 112. (Mus. Cuming.) 



This shell, which is the type of N. mfociiicta, A. 

 Adams, is a variety of N. versicolor, C. B. Adams, figured 

 above it. 



Species 113. (Mus. Cuming.) 



Nassa sinusigera. Nass. Icstd oaato-coiiicd, solidius- 

 culd, obliqud, albidd, rii/o-fusco tincid et vittatd, loiigi- 

 tudiuaUter costatd, costis subflcruosis, ad suturas gra- 

 iiulatis ; columelld callosd et rugosd, aperturd parvd, 

 fauce liratd, superiie sinuatd, labro varicoso, iiiferue 

 sitiitato. 



The sinhated Nassa. Shell ovately conical, rather 

 solid, oblique, whitish, stained and filleted with red- 

 brown, longitudinally ribbed, ribs slightly flexuous, 

 granulated at the sutures ; columella callous and 

 wrinkled, aperture small, interior ridged, siriuated at 

 the upper part, lip varicose, sinuated at the lower part. 



A. Adams, Pro. Zool. Soc. March 18.51. 



Hab. Island of Samar, Philippines (in coarse sand at eight 

 fathoms) ; Cuming. 



A very characteristic species, peculiar both in form and 

 sculpture. 



Species 11-i. (Mus. Cuming.) 



Nassa incrassata. Nass. testd coiiico-turritd, fulvcs- 

 cmt-e-lated, castaneo plus minus fasciatd ; anfractibus 

 rotimdatis, longitudiuaHter costatis, transversim nodu- 

 loso-liratis ; aperturd parviuseuld, columelld arcuatd, 

 callosd, labro pecidiariter proiiiiiiciife varico.io. 



The thickened Nassa. Shell conioally turreted, ful- 

 vous yellow, more or less banded with chestnut ; 

 whorls rounded, longitudinally riljbed, transversely 

 nodulously ridged ; aperture rather small, columella 

 arched, callous, lip pecnliarly prominently varicose. 



Tritoniuni iiicrussatum, JliiUer, Zoologia Danica, Pro- 

 drome, No. 2946. 

 Murex incrassatus, Gmelin. 

 Nassa incrassata, Deshayes. 

 Bitccinum miuutum. Pennant. 

 Buccinuin macula, Montagu. 

 Buccinuin Ascanias, Bruguiere. 

 Bucchium asperulum, Phili]i])i. 

 Buccinum Lacepedd, Payraudeau. 



Hab. Seas of Europe. 



This well-known European species is peculiarly distin- 

 guished by the prominent development of the vari.v bor- 

 dering the lip. 



Pig. 115. (Mus. Cuming.) 



A characteristic dwarf variety of N. Antillanmi describeil 

 at Plate Xll. 



Species 116. (Mus. Cuming.) 



Nassa semigranosa. Nass. testd ovato-coidcd, albd, 

 lateo interdmii variegatd, uitidd ; anfractibus trans- 

 versim temiis.nms striatis, prope suturas longitudinali- 

 ter plicatis, pUcis super ne bi-tri-tuberculatis ; aperturd 

 ovatd, columelld suhcallosd, Icevigatd, labro varicoso. 



The half-grained Nassa. Shell ovate conical, white, 

 sometimes variegated with yellow, shining ; whorls 

 transversely very finely striated, longitudinally plaited 

 near the sutures, plaits two-three-tubercled at the 

 upper part ; aperture ovate, columella rather callous, 

 smooth, lip varicose. 



Buccinum seiiiigrano-viin, Dmiker, Zeitschrift fiir Malac. 

 18+6, p. 170. 



Hab. ? 



A shining ivory-like shell, in which the longitudinal 

 plaits are broken up next the sutures into granules. 



December, 1853. 



