L I T T R I N A. 



Plate XVII. 



Species 93. (Mus. Cuiuing.) 



LiTTORiNA DECOLLATA. Litt. testcl ovatd, apice obtusd, 

 erosa, lavissimd, albidd, fascia lata carulescente cin- 

 gidatd ; anfractibus parum eonvexis, ultimo vix angu- 

 lato ; aperturd ovatd, nigro-fuscd, zonis duabiis albis, 

 columella excavato-depressd, nigro-fuscd. 



The decollated Littorina. Shell ovate, obtuse and 

 eroded at the apex, very smooth, whitish, encircled 

 with a broad blue band ; whorls but little convex, 

 the last slightly angled ; aperture ovate, blackish- 

 brown, with two white zones, columella excavately 

 depressed, blackish-brown. 



Krauss, Philippi, Alibild. und Besch. Conch, vol. ii. 

 p. 197. pi. 4. f. 3. 



Hab. Natal. 



A small patulate species, of a jjcculiar blue colour, white 

 at the sutures, with aperture and columella dark chestnut- 

 brown. 



Species 93. (Mus. Cuming.) 



Littorina ventricosa. Litt. testa ovatd, venin'cosn, 

 basi rotuniald, trunsversim sulcatd, snlcis nonnunquam 

 granulatis ; albidd, strigis undatis rufis pictd ; anfrac- 

 tibus eonvexis ; aperturd semiorbiculari, patuld, earned, 

 columelld excavato-depressd, stibcallosd, earned. 



The ventbicose Littorina. Shell ovate, ventricose, 

 rounded at the base, transversely grooved, grooves 

 sometimes granulated ; whitish, painted with waved 

 red streaks ; whorls convex ; aperture semiorbicular, 

 patulate, flesh-colour, columella excavately (Kiu'cssed, 

 rather callous, flesh-colour. 



Philippi, Abbild. und Besch. Conch, vol. iii. p. 15. 

 pi. 6. f. 19. 



Hab. Pulo-Penang. 



A liueai'ly grooved inflated shell, faintly red-streaked, 

 with the aperture and columella of a characteristic flesh- 



Species 94. (Mus. Cuming.) 

 Littorina Diemenensis. Litt. testa ovato-oblovgd, btisi 

 subangulatd, transoersim tenuissinie striata, albido- 

 ccerulescente ; anfractibus planiusculis, ultimo medio 

 carulescente vittato ; aperturd ovatd, parviusculd, 

 eastaneo-fuscd. 

 The Diemen Littorina. Siiell ovateiy oblong, .slightly 

 angled at the base, transversely very flnely striated, 

 whitish-blue ; whorls rather fiat, the last blue-banded 



Oclobi 



round the middle ; aperture ovate, rather small, chest- 

 nut-brown. 

 QuoY and Gaimard, Voy. de I'Astrolabe, vol. ii. p. 479. 



pi. 33. f. 8-11. 

 Hab. New Zealand. 



A rather solid oblong species, conspicuously blue- 

 banded, shining chestimt-brown in the aperture. 



Species 95. (Mus. Cuming.) 



Littorina l,evis. Litt. testa ovato-oblongd, acuta, 

 albidd, cinereo marmoratd, interdum caruleo fasciatd ; 

 anfractibus parum eonvexis, laoibus, sub lente spiraliter 

 striatis, ultimo basi angulaiv ; aperturd ovatd, fusco- 

 violaced, columelld excavato-depressd, fusco-violaced. 



The smooth Littorina. Shell ovateiy oblong, sharp, 

 whitish, marbled with ash, sometimes blue-banded ; 

 whorls but little convex, smooth, beneath the lens 

 spirally striated, last whorl angled at the base ; aper- 

 ture ovate, brownish-violet, columella excavately de- 

 pressed, brownish-violet. 



Philippi, Pro. Zool. Soc. 1845, p. 140. 



Hab. ? 



A shell of rather solid growth, angled towards tlie base, 



blue-banded or mottled, while the aperture and columella 



are deep brownish-violet. 



Species 96. (Fig. a, b, Mus. Cuming.) 



Littorina Sayi. Litt. iestd ovatd, acutd, subventricosd, 

 Iraiisversim multimlcatd, alba, punctis pallid^ rufis 

 ornatd ; spird violascente, anfractibus convexiusculis, 

 superne declivibus ; aperturd ovato-orbiculari, colu- 

 melld riifd. 



Say's Littorina. Shell ovate, sharp, rather ventricose, 

 tva\isversely many-grooved, white, ornamented with 

 l)ale red dots; spire violet, whorls rather convex, 

 slanting round the upper part ; aperture ovate-orbi- 

 cular, columella red. 



Philippi, Pro. Zool. Soc. 1845, p. 140. 



Hab. Florida. 



Of rather solid, ventricose growth, closely spirally 



grooved throughout, with the columella characteristically 



stained with red. 



1-, 1858. 



