155 



Tatella fissurella. Mull. Zool. Ban. 1. 1. 24. f. 4. 6. Apektusa. 



Id. prodr. No. 2865. p. 49 1 . 



■ apertura Lin. I'rans. viii. p. 236, 



This is undoubtedly ihe fijjurella of Muller, but liis figure 

 does not appear to be fo ftrongly ribbed, or tuberculated as 

 ours, and is marked with two rufous-brown bands. This 

 author fpeaks of it as rare in Fuci. Fabriicus found it in the 

 Iceland feas adhering to ftones. 



DENTALIUIVI. 



Dentalium stiiatulum. Lin. Trans, viii. p. 238. Striatulcm. 



Deiitalium octangulatum. Don. Br. Shells, v. t. 162. 



There appears very little reafon to doubt but this is the 

 D. ftriatulum of Gmelin, p 3738, and figured by Martini, 

 vol. I. tab. 1. f. 5, B. as well as Lister, tab. 547. fig. 1. b. 



Several of thefe fhells are faid to have been found on the 

 fands near Lelant in Cornwall. Length about two inches* 



The fliell is defcribed to be white, fomewhat curved, with 

 eight ribs or angles, and three intermediateyZr/ie. 



The only difference between this and the Gmeliiieanjlria' 

 tulum appears to be in colour, that fhell is ftated to be green, 

 with a white tip, poflibly flained by foine adventitious matter. 



V 2 Striatum. 



