336 NATiciDj;. 



Barlee has taken it at Arran in Gal way, and at Loch 

 Fyno. Mr. Jeffreys informs us that it was found at Cork 

 by Mr. Humphreys. 



It ranges to the Mediterranean, where it was first taken 

 alive by Philippi, who states that it inhabits dee^D water 

 there. The Natica catenoides of Wood, from the Red 

 Crag of Sutton and Walton, comes very near this rare 

 shell, and is probably identical with it. 



N. MoNTAGui, Forbes. 



Small, rufous, devoid of markings, but with a narrow whitish 

 band or volutional margin below the suture ; throat rufous ; 

 pillar and pad pure white ; umbilicus not environed by a band 

 of colour, partially concealed by a projection of the enamel. 



Plate CI. fig. 3, 4, and (Animal) Plate P P. fig. 4. 



N^erita ru/a, MoNT. (not of Bom) Test. Brit. Siippl. p. 150, pi. 30, f. 3 (not the 

 young). — TuRT. Conch. Diction, p. 12C (from last). — Dillav. 

 Recent Shells, vol. ii. p. 980 (in part). 

 Natica „ Fleming, Brit. Anim. p. 31.9. — Brit. Marine Conch, p. 148. 



„ Monta</ui, Forbes, Malac. Moncns. p. 32. — Brown, Illust. Conch. G. B. 



p. 25, pi. 13, f. 3,6. 

 „ rutila, Macgilliv. Moll. Aberd. p. 126; copied, Brit. Marine Conch, 

 p. 253, and Brown. 111. Conch. G. B. p. 130. 



We have followed preceding writers in our identification 

 of the Nerita rufa of Montagu, yet feel by no means 

 certain that the shell originally delineated by Montagu 

 was not a West Indian one, that is usually met with in 

 collections from that quarter. 



The shell is small, somewhat obliquely subglobose, of 

 nearly equal length and breadth, strong, smooth, and both 

 externally and internally of a rufous flesh colour, or livid 

 rufous cast, that becomes somewhat paler towards the umbi- 

 licus, pure white on the pillar lip and at the extreme edge 



