LITTORIN A. 



Plate VI. 



Species 25. (Mus. Cuming.) 



LiTTORlNA ciNGULATA. Litt. testd conico-ovatd, soUd'ms- 

 culd, anfraclibus convexis, spiraliter filoso-costatis, in- 

 terstitiis dense elevato-striatis ; cinereo-rufd, cosiis 

 pallidis, obscure maculatis ; aperturd parviusculd, co- 

 lumelld subcallosd, alba. 



The belted Littorina. Shell conically ovate, rather 

 solid, whorls convex, spirally thread-ribbed, inter- 

 stices densely elevately striated ; ash-red, ribs pale, 

 obscurely spotted ; aperture rather small, columella 

 rather callous, white. 



Philippi, Pro. Zool. Soc. 1845, p. U2. 



Hah. North coast of New Holland ; Driiig. 



Distinguished by its strong spiral ridges, the interstices 



between which are prominently excavated and of darker 



colour. 



Species 36. (Fig. a, b, Mus. Cuming.) 



LiTTOKlNA castanea. Litl. tcstd siibgloboso-ovatd, solidi- 

 usculd, spird brevi, anfractibus superne depressiuscuUs, 

 deinde rolundatis et spiralUer carinatis, carinis regu- 

 laribus, subdistantibus ; intense rufo-castaned ; aper- 

 turd cireulari, columelld late callosd. 



The chestnut Littorina. Shell somewhat globosely 

 ovate, rather solid, spire short, whorls somewhat de- 

 pressed at the upper part, then rounded and spirally 

 keeled, keels regular, rather distant ; deep reddish- 

 chestnut; aperture circular, columella broadly cal- 

 lous. 



Adams and Reeve, Moll. Voy. Samarang, p. 49. pi. 11. 

 f. 8. 



Hab. Eastern Seas ; Belcher. 



Of a dark reddish-chestnut colour, encircled throughout 



witii stron<r, rather distant keels. 



Species 27. (Fig. a, b, Mus. Cuming.) 

 Littorina arboricola. Litt. testd acumlnato-ovatd, le- 

 nuiculd, anfractibus declivi-convexis, spiraliter Jiloso- 

 liratis, liris scepe alternatim majoribus, interstitiis 

 striatis ; fiilvd, purpurea ad suturam tnaculatd et iri- 

 terdum oblique strigatd ; aperturd subcoutractd, colu- 

 tU'elld exfavato-appressd, interdum purpurea tinctd. 

 TiiE^TK^ Littorina. Shell acuminately ovate, rather 

 * tliiu, whorls slantingly convex, spirally thread-ridged, 

 ^.^ ridges often alternately larger, interstices striated ; 

 *' fulvous, spotted at the suture and sometimes ob- 

 liquely streaked with purple; aperture rather con- 

 tracted, columella excavately appressed, sometimes 

 stained with purple. 



Hab. Singapore (on the branches of the Mangrove-tree) ; 

 Cuming. 

 Of a peculiar opake fulvous cast, spotted beneath the 

 suture with purple, which is occasionally prolonged into 

 oblique streaks. 



Species 28. (Fig. a, b, Mus. Cuming.) 



Littorina Newcombi. Litt. testd pyramxdali-ovatd, soll- 

 diusculd, anfractibus ad sutaram rude marffinatis, de- 

 clivi-convexis, inferne obtuse angulatis, undique dense 

 irregulariter lineari-sulcatis ; carulescente, fulvo-ru/o 

 projnisciii tessellatd; aperturd parviusculd, columelld 

 excavato-appressd, intense purpured. 



Newcombe's Littorina. Shell pyramidally ovate, rather 

 solid, whorls rudely margined at the suture, slant- 

 ingly convex, obtusely angled at the lower part, 

 densely irregularly linear-grooved throughout; bluish, 

 promiscuously tessellated with fulvous-red ; aperture 

 rather small, columella excavately appressed, deep 

 purple. 



Hub. Sandwich Islands. 



A very characteristic species, rather solid, inclined to 



be angular at the base, closely linearly incised throughout. 



The ground-colour is grey-blue, promiscuously tessellated 



throughout with fulvous-red. 



Species 29. (Fig. a, b, Mus. Cuming.) 



Littorina carinipera. Litt. testd pyramidali-conicd, ver- 

 sus basin angulata-ventricosd, solidiusculd, anfractibus 

 plano-decUvibus, parum convexis, spiraliter carinato- 

 costatis, costis distantibus, lird obtusd inter castas de- 

 currente ; griseo-caruled, rufo-fmco punctata et lenti- 

 ginosd ; columelld late appressd,fulvd aut intense vio- 

 laced. 



The keeled Littorina. Shell pyramidally conical, an- 

 gularly ventricose towards the base, rather solid, 

 whorls flatly slanting, but little convex, spirally keel- 

 ribbed, ribs distant, with an obtuse ridge running 

 between the ribs; grey-blue, dotted and freckled 

 with red-brown ; columella broadly appressed, ful- 

 vous or deep violet. 



Phasianella carinifera, Menke, Synopsis, 2nd edit. p. 51. 

 Littorina perdix, King. 

 Littorina carinifera, Philip|)i. 



Hab. Java, Philippine Islands, China, Borneo. 



This species has a wide range in the Eastern Seas, and 



varies materially in general form. 



May, 1857. 



