NASSA. 



Plate X. 



Species 61. (Mus. Cuming.) 



Nassa bimaculosa. Na>i)i. tedd snborhiculari, apud dor- 

 sum valde gibbosa, tuberculatd ; spird acuta, longitu- 

 dmnlUer suhplicatd, antice transverdm sulcata, olira- 

 ced,fuscid palUdd cinctd, labia cum callo crasso albo 

 m-ayno suborbiculari -cincto ; columelld lavi, antice 

 uuiplicatd ; labro valdt' iiicrnsaato, uiarr/inato, antice 

 siuuato, intus lirato, cxtus maculis dnubus rufo-fuscis 

 oniato. 



The two-spotted Nassa. Shell suborbicular, very 

 gibbous at the back, tubercled ; spire sharp, longitu- 

 dinally subplicated, anteriorly transversely grooved, 

 olive, encircled with a pale band, lip encircled by a 

 large nearly orbicular thick white callosity ; columella 

 smooth, one-plaited in front; lip much thickened, 

 margined, sinuated in front, ridged within, orna- 

 mented externally with two reddish-brown blotches. 



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



Hab. Island of Siquijor, Philippines (on mud-banks) ; 

 Cuming. 



A solid dwarf-like species, with a wide-spread thickened 

 callosity. 



Species G2. (Mus. Cuming.) 



Nassa olobosa. Na^s. testd globosd, turgidd, dorso 

 valde gibbosd, tuberculatd, longitudiimliter termiplicatd, 

 tramversim striata, obsolete (jrannlosd ; spird brevi, 

 acuta; aperturd minimd, callo peramplo crasso orbi- 

 culari, lutescente. 



The globose Nassa. Shell globose, swollen, very 

 gibbous at the back, tubcrculated, longitudinally 

 finely plaited, transversely striated, obsoletely gra- 

 nulcd ; spire short, sharp ; aperture very small, with 

 a very large thick orbicidar yellowish callosity. 



Bucciimm ylobosum, Quoy and Gaimard, Zool. Voy. de 

 I'Astrolabe, vol. ii. p. 448. pi. 33. f. 25 to 27. 



Buccinum clathratum, Kiener. 



Hab. Island of Vanikoro and New Ireland ; Quoy. 



A very gibbous solid species, finely latticed throughout, 

 with a thick wide-spreading callosity. 



Species 63. (Mus. Cuming.) 

 Nassa luteostoma. Nass. testd pyramidali-couicd, ven- 



tricosd, caruleo-fuscd ; spird subturritd ; aufractibui 

 superne concavo-angulatis, ad amjulum plicato-tuber- 

 culatis, lineis fuscis cingulatis ; aperturd parvinscuhi, 

 columelld labroque callosis, aurantio-luteis. 



The yellow mouth Nassa. Shell pyramidally conical, 

 ventricose, blue-brown ; spire subturreted ; whorls 

 concavely angled round the upper part, plicately 

 tubercled at the angle, encircled with brown lines ; 

 aperture rather small, lip and columella callous, 

 orange-yellow. 



Kiener, Icon. coq. vivantes, p. 110. pi. 30. f. 1. 



Hab. Senegal. 



Of a peculiar bluish colour externally, while the enamel 

 of the lip and columella is a bright orange-yellow. 



Species 64. (Mus. Cuming.) 



Nassa gibbosula. Noi-s. testd ovatd, crassd, dorso gibbd 

 et tuberculatd, lavi, olivaced, carulescente-albo leuti- 

 giuosd ; spird brevi, acuta ; aperturd parvd, callositate 

 crassd perampld fere iisque ad apicem repandd, callosi- 

 tate alhd, intense aurantio-rufo marginatd. 



TuE GIBBOUS Nassa. Shell ovate, thick, gibbous and 

 tubercled at the back, smooth, olive, freckled with 

 bluish-white ; spire short, sharp ; aperture small, with 

 a very large thick callosity spread out nearly to the 

 apex, callosity white, deep orange-red at the edge. 



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

 1201. 

 Nassa gibbosula, Lamarck. 



Hab. Philippine Islands ; Cuming. 



A very solid gibbous tubercled species, smooth, white- 

 freckled on olive, with a large callous enamel disc around 

 the aperture. 



Species 65. (Mus. Cuming.) 



Nassa Thersites. Na-^s. te-ild ovato-acutd, crassd, valde 

 gibbosd et tuberculatd, oblique plicatd, dorso lavi, oli- 

 vaceo-cinered vel carulescente ; aperturd parvd, callo- 

 sitate ampld orbiculari, lutescente, fauce liratd. 



The Thersites Nassa. Shell ovately acute, thick, very 

 gibbous and tubercled, obliquely plaited, smooth at 

 the back, olive-ash or bhiish ; aperture small, with a 

 large orbicular yellowish callosity, interior ridged. 



December, 1853. 



