LITTORINA. 



Species 15. (Fig. b, c, Mus. Cumiug.) 

 LiTTORlNA AHENEA. Litt. tcstd ovato-turbinatd, imper- 

 foratd, spira acuta, mttird impressd, anfractibua con- 

 vexis, dense scabroso-striatis ; albidd vel lutescenle, ci- 

 nereo-fmco et cteruleo varie oblique strigatd sen leti- 

 tiffinosd. 

 The bronzed Littoiiina. Shell ovately turbinated, im- 

 perforated, spire sharp, suture impressed, whorls con- 

 vex, densely scabrously striated ; whitish or yellow- 

 ish, variously obliquely streaked or freckled with ash- 

 brown and blue. 

 Hob. Senegal. 



The two shells lieve represented, from Mr. Cuming's 

 collection, were figured by Dr. Philippi in his 'Abbildun- 

 gen,' pi. 5. fig. 13 and 14, as varieties of L. angulifera, 

 Lamarck. They appear to me, on further examination 

 and comparison, to belong to different species. Fig. 15 a 

 I take to be a variety of L. scabra, described at PI. 5. Sp. 

 21, while the shell Fig. 15 i and 15 c appears not to have 

 been described. 



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

 LiTTOBiNA GRANDis. Litt. testd oblique turbiitatd, 

 crassd, solidd, imperforald, anjractibus superne con- 

 caviusculis, lavibm vel obsolete carinatis, versus api- 

 ceni striatis ; Cfsrulescente-grised, carinis interrupte 

 nigricante-ficscis, columella late callosd, albd, labro 

 fusco mucidato. 

 The LARGE LiTTORiNA. ShcU obliquely turbinated. 



thick, solid, imperforated, whorls slightly concave 

 round the upper part, smooth or obsoletely keeled, 

 striated towards the apex ; bluish-grey, keels inter- 

 ruptedly blackish-brown, columella broadly callous, 

 white, lip spotted with brown. 



MiDDENDORF, Beit. Malac. Rossica, part 2. p. 57. 



Hab. Island of Schantar, Sea of Ochotsk ; Middendorf. 



A fine species of solid massive growth, of a bluish-grey 

 colour, encircled with narrow interrupted black-brown 

 bands, indicating keels that with age have become obso- 

 lete. 



Species 17. (Fig. a, b, Mus. Cuming.) 



J''^ 



LiTTORiNA PULCHRA. Litt. testd ovato-turgidd, imp'er- 

 foratd, apice acutd, anfractibus dense lirato-striatis, 

 superne concavo-declivibus ; aurantio-rufescenle,flam- 

 mulis atratis obliquis strigatd, columelld late exca- 

 vatd. 



The beautiful Littorina. Shell ovately turgid, im- 

 perforated, apex sharp, whorls densely ridge-striated, 

 concavely slanting at the upper part; orange-red, 

 streaked with oblique black flames, columella broadly 

 excavated. 



SowERBY, Genera of Shells, Littorina, f. 2, 3. 



Ilab. Panama. 



Another fine species, better known to collectors than the 

 preceding, distinguished by its conspicuous pattern of ob- 

 liquely waved stripes upon a rich orange-red ground. 



May, 1857. 



