•i55 



and all others thrown into the genus Heli'r, the diftm6lion 

 would be more evident; but as it muft be alfo o/6/a//ar to 

 conftitute a Linncean Turbo, without regarding tlie ambigu- 

 ous term contracted, very few are there of the Britijh fpecies- 

 whicli ought be ret:iined in the prefentlong catalogue of that 

 genus. In fa6l there never was a naturalifl that did not 

 differ in opinion with himfelf at different times, as the fecrets 

 of nature become more difclofed, and her veil removed by 

 the hand of time : even the great Linn^us was not proof 

 againft this mortal defe6l, as his various editions of the 

 Syftema JVatura- will evince ; fo that at laft under ambiguous 

 terms there are, and will be, points in claffification fubje^t to 

 diverlity of opinions. 



Turbo Ziczac. Lin. Trdns. viii. p. 160. t. 4. f, 14. ZlCZAC. 



Lister. Conch, t. 583. f. 38. 

 Trochus Ziczac. Gmel. Si/sL p. 3587. 



Chem. Conch, v. t. l66. f. 1599. 



Shell conic, with fix fub-ftriated, white, or purplifli-whife 

 fplres, marked with equidiftant, longitudinal, undulated, 

 purple, or purplifli-brown lines: apex acute: bafe fub- 

 carinated: aperture sub-ovate. Length half an inch; 

 breadth a quarter. 



This fpecies is fubje61: to fome variation in colour. A 

 fmall variety without the zigzag lines, w'e are informed 

 through the medium of the Linnaan TranfaBions , has been 

 found near Sundsrland, in Durham, by Lady Wilson. 



SiMILLIMUS. 



