APPENDIX. 283 



Vol.iCp. 311. EULIMELLA. 



Mr. Clark has observed the animals of Eulimella acicula, affinis 

 (which he regards as a variety of the former species) and clavula. 



The animal of Eulimella acicula is of a subpellucid frosty 

 white hue, speckled with minute snowy flakes. The mentum 

 (regarded by Mr. Clark as " the head or rostrum ") is rather long, 

 very broad, square in front, and slightly emarginate in the centre j 

 it is grooved throughout the whole length, and the groove is 

 continued towards the neck, just separating the tentacula at their 

 basal centre ; at its upper surface, close to the base, is the orifice 

 of the proboscis. The tentacula diverge and resemble short 

 broad, minute leaves, each with an opaque stripe down the centre. 

 The eyes are not quite close to each other, and are placed a little 

 behind the inner bases of the tentacula. The foot is rather long, 

 extending to two volutions, bluntly auricled in front, pointed 

 behind, and bears on a simple lobe a pyriform horny operculum. 



Eulimella affinis exactly accords with the above description. 



Eulimella clavula is of a clear frosted white hue. The mentum 

 is very narrow, not bilobed or grooved. The tentacles are short, 

 broad and phylliform ; they are not divergent ; each terminates 

 in two white inflations. The eyes are at their internal bases, not 

 very close together. The foot is strongly auricled. All these 

 animals were taken in fourteen fathoms water off Teignmouth in 

 Devon. 



Vol. iii. p. 319. Truncatella Montagui, and Note. 



The obscure Turbo nitidus of Adams (Linnean Transact, vol. 

 iii. p. 65), is referred by Montagu to this species. Some specimens 

 of H. subcylindrica, once the property of the author of the " Tes- 

 tacea Britannica," prove, on comparison, to be identical with a 

 Jamaica Truncatella sent us by Professor Adams, of Vermont, as 

 his T. succinea. 



Vol. iii. p. 376. Note to Murex coralllnus. 



To the Murex gyrinus of Montagu's description (Test. Brit. 

 Suppl. p. 170, erroneously as of Gmelin; Turton, Conch. Diction. 



