PTEROCERA. 



Species 7. (Mus. Ciiming.) 



Pteroceka aurantia. Pter. testa, ovatd, spird acumi- 

 nata, anfractibiis subtiliter striatis, superne coiicavo- 

 dedmbus, anfractu ultimo costis tuberculati» cingulato, 

 Jieptadactylo, dactylis curvatis, lateralibus breviuscidis, 

 cateris prmlomjis, columella callosd, Icevigatd, apertura 

 fauce lavigatd ; albidd, rafescente-fusco thictd et ma- 

 culatd, colmndld et apertura fance interne aurantiis. 



The orange Pteroceka. Shell ovate, spire acumiuated, 

 whorls finely striated, concavely slanting round the 

 upper part, last whorl encircled with tubercled ribs, 

 seven-clawed, claws curved, side claws rather short, 

 the rest very long, columella callous, smooth, interior 

 of the aperture smooth ; wlutish, stained and spotted 

 with reddish-orange, columella and interior of the 

 apertm'c very deep orange. 



Lamarck, Anim.sans vert. (Deshayes' edit.) vol.ix. ]i. 675. 



Hab. Philippine Islands ; Cuming. 



This species is well distinguished from all others Ijy its 



slender claws and deep orange colouring. 



Species 8. (Mus. Brit.) 



Ptebocera lambis. Pter. testd ovato-oblongd, spird 

 acuniinatd, anfractibus subtiliter striatis, superne con- 

 eavis, ad unguium nodatis, anfractu ultimo fortiter 

 tuberculatis, heptadaclylo, dactylis nunc breviusculis, 

 nunc elongatis, columella et apertures fauce lamgatis ; 

 albidd, rufesceide- aut nigro-fusco marmoratd, colu- 

 mella et apertures fauce pallidl carneolis. 



The spider Pteroceea. Shell ovately oblong, spire 

 acuminated, wiiorls finely striated, concave round the 

 upper part, noduled at the angle, last whorl strongly 

 tubercled, seven-fingered, fingers sometimes rather 

 short, sometimes long, columeUa and interior of the 

 aperture smooth ; whitish, marbled with reddish or 

 black-brown, columeUa and interior of the aperture 

 pale flesh-colour. 



Strombus lambis, LimiiBUS, Syst. Nat. (12th edit.) p. 1308. 



Ilab. Ceylon and PliUippine Islands. 



This well-kno^vn species inhabits the Eastern Seas iii 

 great abundance, of various sizes, rarely exceeding that of 

 the specimen here figured. 



Febniary, 1851. 



