PLATE CIV. 



Rough, and our most common whclke. Dale Ilar-w. p. 3d2» 



No. 3.4. 

 Buccinum undatum, waved, Penn, Brit. Zool. No. 90. pi. 7S. 

 Buccinum striatum, striated. Penn. Br. Zool. No. 91. pL 74. 

 Exiccinum canaliculatum medium vulgare rufesceus striatum, plun- 



bus costis undatis distinctum. Vulgare Da Cosia. 



Br. Conch, p. 122; sp. 73. tab. 6. fg. 6. 6. 



This is the common Whelke of English conchologists, and is some- 

 times brought to the markets as an article of food. The brown ones 

 are this common sort, for as Linnxus observes, those that arc brown 

 fasciated with white or blue are scarce \ the former of those varieties 

 IS figured in the annexed plate. 



Lister, Pennant and other authors have considered the striated va- 

 riety of this Shell as a distinct species; it is certainly destitute of tho5^ 

 prominent ribs or knobs which is so conspicuous in this Shell in ge- 

 reral, but the transitions from the striated kind to those with knobs 

 IS so gradual and easy to be traced that we must coincide with Lin- 

 naeus and Da Costa who admit them barelv as varieties. 



