NATICA. 345 



The description of Nerita caurena, in Maton's catalogue of 

 British shells (^Linncean Transactions, vol. viii. p. 223), siq^jjosed 

 hy him to he the present shell, is a mere transcript of the language 

 of the " Museum Ulricce," in which ivorl: three or four exotic shells 

 are united under that ap>pellation. From its general likeness 

 to Alderi, it has been included in some of our local catalogues of 

 species, hut the evidence of its indigenousness {esj^ecially as a 

 Northern species) is, to sag the least, sxispicious. 



Two shells, the JVerita tuberosissima of Montagu, and the N'. 

 glabrissima of Brown, inserted by Recluz in the genus Narica, 

 have been included among our native species. The former is 

 decidedly spurious, a native of the West Indies, and we believe 

 the fry of the Nar. sidcata of D'Orbigny. 



N^crita tuberosissima, Mont. Test. Brit. Suppl. p. 150, pi. 2,9, f. 5. — Turt. 



Conch. Diction, p. 127. 

 Nutica „ Fleming, Brit. Animals, p. 320. — Brit. Marine Conch. 



p. 150. — Brown, Ulust. Conch. G. B. p. 25, pi. 13, 



f. 18,20. 

 Narica „ Recluz, Revue Zool. Cuvier. 1844, p. 6 ; Magasinde Zool. 



(Guerin's) 1845, p. 35, Moll. pi. 125, f. 2. 



Recluz, who believes the species to be possibly identical with 

 the granulosa of his Monograph, has compiled his description 

 solely from the descriptions and plates of our British writers. 

 In like manner his Narica glaherrima is entirely derived from 

 similar sources. 



Nerita glahrisslmui. Brown, Mem. Werner. Soc. vol. ii. pt. 2, p. 532, pi. 24, 

 f. 12. 

 „ sulcata, TuRTON (not authors). Conch. Diction, p. 124, f. 56, 57, 



and p. 257. 

 Naiica „ Fleming, Brit. Animals, p. 320. 



„ ff/ubi-issima, Brit. Marine Conch, p. 149. — Brown, Illust. Conch. G. B. 

 p. 25, pi. 13, f. 12. 

 Narica (flaherrima, Recluz, Revue Zool. Cuvier. 1844, p. 49, and Magasin de 

 Zool. 1845, p. 65, Moll. pi. 135, f. 2. 



We feel almost certain that this obscure species does not belong- 

 to the genus at all ; the figures of Brown and Turton look more 

 like a Lacuna, and the apparent sulci are only designed for " re- 

 mote longitudinal striaj that are very fine." (Turt.). 



