340 MURICID.E. 



a young monster from Shetland tlie last two whorls are 

 unnaturally swollen^ so as to be not unlike the F. ven- 

 tricosus of Gray — if that species be not identical with 

 his Buccinum Sabinii, although the latter is described 

 as having the inside of the outer lip " slightly crenated/' 

 The smaller size and more delicate texture, finer and 

 closer sculpture, longer, turreted, and regularly tapering 

 spire, deeper suture, hispid epidermis, less abrupt cur- 

 vature of the canal, and especially the symmetrical apex 

 will readily serve to discriminate this from the last 

 species. 



It was discovered by the late Sir Walter Trevelyan at 

 Seaton, and noticed by Brown as a variety of F. gracilis. 

 Its recognition as a species is due to the lamented 

 Joshua Alder ^. This admirable naturalist was so be- 

 loved by all his friends, that to each may be said of 

 him, — 



'* Nulli flebilior quam tibi." 



F. Islandicus, var. pygmcBUSf of Gould (a North- Ame- 

 rican species) seems to bear the same relation to F.pro- 

 pinquus as his F. Islandicus does to F. gracilis. 



7. F. BUCciNA'Tust, Lamarck. 



F. buccinatus, Lam. An. s. V. vii. p. 132. 



Shell differing from that of F. propinquus in being much 

 larger, more ventricose and soHd, and in having a conical and 

 shorter spire ; the whorls arc more convex, and the last occupies 

 eight-elevenths of the shell; the ridges on the back of the 

 canal are stronger ; the surface is covered with microscopic 

 spiral striae, which intersect the equally fine lines of growth, 

 so as to produce a slight and partial decussation ; the epidermis 

 is membranous and deciduous, fibrous near the outer lip, never 

 hispid, and of a brownish-yellow colour ; the alternation of 



* Died 21st January 1867, aged 74. 

 t Shaped like a Buccinum. 



