122 LITTORINID^. 



sides of the body ; the tentacles are very long and seta- 

 ceous, with a similar black bar to that in Bissoa ulvae 

 below their tips." 



It appears to be a widely distributed, but nevertheless 

 rather scarce species. It inhabits the laminarian zone and 

 the shore near low-water-mark. The Channel Isles, 

 Herm (S. H.) ; Tenby (Lyons) ; AVhitesand Bay (Jef- 

 freys) ; Land's End (Barlee) ; Whitley, Northumberland 

 (Fryer in Alder Cat.)- Laskey found it in the east coast 

 of Scotland at Dunbar, and JSIacgillivray records it from 

 the Buchan Coast. In some places on the north, east, and 

 west coasts of Ireland (W. Thomson). 



It ranges to the Mediterranean. 



R. ciNGiLLus, Montagu. 



Oval-conic, usually with three coloured zones on the body, 

 wliich is girt with obscure rounded costellar stria;; whorls flattisb ; 

 mouth oval-pyriform. 



Plate LXXIX. fig. 9, 10, and (Animal), Plate J. J. lig. 4. 



ihlLtpcUa, Linn. Syst. Nat. ed, 12, p. 1249. ? 



Turho cimjillus, Mont. Test. Brit. vol. ii. p. 328, pi. 12, f. 7; Suppl. p. 125.— 

 Maton and Rack. Trans. Linn. Soc. vol. viii. p. 165. — Turt. 

 Conch. Diction, p. 205. — DiLi.w. Recent Shells, vol. ii. p. 841. 

 — Wood, Index Testaceolog. pi. 31, f. Gl. 

 „ vittatus, Donovan, Brit. Shells, vol. v. pi. 178, f. 1. 

 „ (jraphicus, TuRTON, Conch. Diction, p. 200, f. 34. — Brown, Mem. 

 Werner. Soc. vol. ii. pt. 2, p. 521, pi. 24, f. 6. 

 C'inijuUt cinyillu, Fleming, Brit. Animals, p. 309. 



/{issoa cin(/iliis, Michaud, Especes de Rissoa, p. 14, f. 19, 20. — Potiez and 

 Mich. Gal. Douai, Moll. vol. i. p. 2G8. 

 „ rupestris, Forbes, Ann. Nat. Hist. vol. v. p. 107, pi. 2, f. 13. — Brit. 



Marine Conch, p. 184. 

 ,, vittaia, Reci.uz, Revue Zool. Ciivier. Soc. 1843, p. 10. 

 „ cinr/illata, Macgilmv. Moll. Aberdeen, p. 328. 

 CingtUa chiyUlata, Brit. Marine Conch, p. 1 82, f. 51. 

 Rissoa gniphica. Brown, lUust. Conch. G. B. p. 12, pi.!), 1. 83. 

 f'l/ramis isirKjiUun, Brown, lUust. Conch. G. B. p. l.>, pi. 9, f. 73. 



