428 MURICIDiE. 



F. NoRVEGicus, Chemnitz. 



Oval, or fusiform-oval, smooth, or nearly so ; mouth much 

 longer than the spire ; canal short and wide ; no siphonal 

 ridge. 



Plate CVII. and CVIII. f. 7, 8, 9.' 



Stromlus Norvegicus, Chemnitz, Conch. Cab. vol., x. p. 218, pi. 157, f. 1497, 

 1498. — DiLLW. Recent Shells, vol. ii. p. 675. — Wood, 

 Index Testaceolog. pi. 25, f. 37. 

 Fusas „ TuRTON, Mag. Nat. Hist. vol. vii. p. 351. — Brit. Marine 



Conch, p. 207. — King, Ann. Nat. Hist. vol. xviii. p. 244. 

 — HowsE, Ann. Nat. Hist. vol. xix. p. 162, pi. 10, f. 1 , 

 2, 3, 4. — Alder, Cat. Moll. Northumb. and Durh. p. 65. 

 — Reeve, Conch. Icon. vol. iv. Fusus, pi. 12, f. 47. 

 Tritoniiim Norvcgicitm, Middend. Malacoz. Rossic. pt. 2, p. 147. 



The only British shell with which it is possible to 

 confound the present is F. antiqmis, from which its much 

 larger apical nucleus, smoother surface, shorter and wider 

 canal, and the absence of a siphonal ridge, suffice to dis- 

 tinguish it. 



The shell is of an oval-fusiform shape, rather more 

 attenuated above than below, more or less solid, yet rarely 

 quite opaque, not very glossy, and smooth or nearly so, 

 being only obsoletely and rather closely sulcato-striated in 

 a spiral direction, and chiefly on the smaller turns. The 

 light brown epidermis, from its extreme tenuity, is rarely 

 preserved, except in patches. The external colouring 

 ranges from pinkish flesh to fawn-colour ; the aperture in 

 the younger specimens is merely of the same hue, but more 

 intensely painted ; in aged individuals it is tinged with 

 bluish pink. The smooth distorted orange-tinted apical 

 nucleus consists of at least two coils, " as large as in some 

 of the mamillatcd Volutes '' (King) ; the upper one is the 

 more bulbous, the lower rather the flatter. The longitudinal 



