120 LITTORINIDiE. 



in Ireland (W. Thompson) ; Bantry Bay and Cork harbour 

 (Jeffreys). 



It ranges to the Mediterranean. 



R. RUBRA, AdamSo 



Oval-conic, rufous, or with a pale spiral band on a rufous 

 ground : whorls decidedly convex, quite smooth : outer lip not 

 marginated. 



Plate LXXVIII. f5g. 4, 5 ; Plate LXXX. f. 3. 



Turho r^dxr, Adams, Trans. Linn. Soc. vol. iii. pi. 13, f. 15 (probably). — Mont. 



Test. Brit. vol. ii. p. 820, — Maton and Rack. Trans. Linn. Soc. 



vol. viii. p. 1 62. — Turt. Conch. Diction, p. 202.— Brit. Marine 



Conch, p. 182, f. 26.— Dillw. Recent Shells, vol. ii. p. 838.— 



Wood, Index Testaceolog. pi. 31, f. 51. 



„ unifasciatus, Mont. Test. Brit. vol. ii. p. 320 ; Suppl. pi. 20, f. 6. — 



Maton and Rack. Trans. Linn. Soc. vol. viii. p. 163. — 



TuKT. Conch. Diction, p. 203. — Dillw. Recent Shells, 



vol. ii. p. 839. — Wood, Index Testaceolog. pi. 31, f. 55. 



Cingvla rtibra, Fleming, Brit. Animals, p. 308. 



„ unifasciata, Fleming, Brit. Animals, p. 30.9. — Brit. Marine Conch. 



p. 182. 



Rissoa fulva, Michaud. Nouv. Esp. de Riss. p. 15, fig. 17, 18. — Philippi, 



Moll. Sicil. vol. i. p. 152 ; vol. ii. p. 129. — Potiez and Mich. 



Galer. Douai, Moll. vol. i. p. 269. 



„ unifasciata^ Recluz, Revue Zool. Cuvier. 1843, p. 10. — Brown. 111. 



Conch. G. B. p. 13, pi. 8, f. 28. 

 „ rubra, Macgilliv. Moll. Aberd. p. 328. — Brown, Illust. Conch. G. B. 

 p. 12, pi. 9, f. 17. 



Although the Mediterranean examples of B. fuha, 

 generally considered as more peculiarly synonymous with 

 R. unifasciata, have their spire somewhat more produced 

 than is the case in our native specimens, we cannot perceive 

 the slightest difference, besides colour, between the ruhra 

 and unifasciata of our own shores. This in the typical 

 form is of an uniform red, that ranges from tawny rufous 

 to vinous crimson ; whilst in the variety a single broad 



