LITTORINA. 



Plate XII. 



Species 59. (Mus. Cuming.) 



LiTTOHiNA ABERRANs. Litt. testd acuminato-turritd, 

 teniti, gracUi, an/ractiius rotundatis, spiraUter mb- 

 tiliter liratis et striatis, striu longitudinalibns irre- 

 gulariter decmsatim striatis ; carneo-alhicante, liris 

 opacis ; aperiurd parvd, circulari, labro et columelld 

 tenui re/lexis, roseo-pnrpnreis. 



The aberrant Littorina. Shell acuminately turreted, 

 tbin, slender, whorls rounded, spirally finely ridged 

 and striated, irregularly plicately decussated with 

 longitudinal striae ; flesh-white, ridges opake ; aper- 

 ture small, circular, lip and columella thinly reflected, 

 rose-purple. 



Philippi, Pro. Zool. Soc. 1845, p. 112. 



Hab. Panama. 



A slender acuminated shell, of light growth, having 



very much the appearance of a Bulimus. 



Fig. 60. (Mus. Cuming.) 

 A variety of L. Fraseri, of more attenuated form, from 

 Fernando Po. 



Species 61. (Fig. «, b, Mus. Cuming.) 



Littorina zebra. Litt. testd acuminato-ovatd, spird 

 acuta, crassiusculd, anfractibm convexis, lavibiis ; ni- 

 gricante-purpiired,Jlammis albis latis undato-strigatd ; 

 columelld late excavatd, aperturis fauce nigricante- 

 piirpwed. 



The zebra Littorina. Shell acuminately ovate, spire 

 sharp, rather thick, whorls convex, smooth ; blackish- 

 chestnut, streaked with broad waved white flames ; 

 columella broadly excavated, interior of aperture 

 blackish-purple. 



Turbo zebra. Wood, Index Test. Supp. pi. G. f. 33. 

 Littorina zebra, Philippi. 

 Phasianella Peruviana, Lamarck. 



Hab. Peru, ChiU. 



A solid, conspicuously white-flamed shell, stained with 



deep-purple in tiie aperture. 



Species 63. (Fig. a, b, Mus. Cuming.) 

 Littorina glans. Litt. tesld ovato-conoided. 



apice acuta, anfractibus (kclivi-convexis, rude plicato- 

 corrugatis et titberculato-granatis ; atrd, ad suturam 

 riifescente ; aperturd parvd, columelld callosd. 



The acorn Littorina. Shell ovately conoid, thick, 

 sharp at the apex, whorls slantingly convex, rudely 

 plicately wrinkled, and tubercularly grained ; black, 

 reddish at the suture ; aperture small, columella cal- 

 lous. 



Hab. ? 



An obtusely conoid solid shell, cinder-black, rust-tinged 

 at the suture, largely grained throughout. 



Species 63. (Fig. a, b, Mus. Cuming.) 

 Littorina simplex. Litt. testd ovato-turbiiiatd, tenui- 

 culd, anfractibus rotundatis, obsolete spiraUter liratis ; 

 sordide fnscescente-aurantid; aperturd subcirculari, 

 columelld excavato-expansd. 

 The simple Littorina. Shell ovately turbinated, ra- 

 ther thin, whorls rounded, obsoletely spirally ridged ; 

 dirty brownish-orange ; aperture nearly circular, co- 

 lumella excavately expanded. 

 Hab. St. Vincent, Cape de Verds. 



Of simple form, the representative apparently of our 

 common L. vulgarU. 



Species 6 1. (Mus. Cuming.) 



Littorina ambigua. Litt. testd ticuminato-ocatd, cras- 

 siusculd, anfractibus superne declivi-impressis, deinde 

 convexis, spiraUter liratis, liris angustis, interdum 

 subobsoletis ; fuscescente, purpureo-castaneo tessellatd 

 aut proniiscue maculatd; columelld late excavatd, cal- 

 losd. 

 The doubtfcl littorina. Shell acuminately ovate, 

 rather thick, whorls slantingly impressed round the 

 upper part, then convex, spirally ridged, ridges nar- 

 row, sometimes nearly obsolete ; brownish, tessel- 

 lated or promiscuously blotched with purple-chest- 

 nut ; columella broadly excavated, callous. 

 Nuttall, MSS., Mus. Cuming. 

 Hab. Sandwich Islands. 



A shell of rather solid growth, tessellated in a some- 

 what irregular blotched manner. 



