THICK-LIPPED OREY MULLET. 



243 



and through their thickness the teeth penetrate like so in tin v 

 hairs ; the maxillary bone is curved, and shows itself behind 

 the commissure. 



These short descriptions of the Thick-lipped Grey Mullet, 

 as given by the Prince of Musignano and Cuvier, have been 

 added here to show, by their general accordance with the 

 account of Mr. Couch, the correctness of that gentleman's 

 views of this species. 



In order to assist observers in distinguishing between the 

 two species of Grey Mullets most common on our coasts, 1 

 have introduced below representations of the head of this 

 species as seen from the side and from below, on the plan 

 followed by the Prince of Musignano in his Fauna Italica ; 

 in which the larger size of the descending portion of the max- 

 illary bone behind the commissure in the side view, and the 

 very narrow space between the inferior edges of the inter- 

 opercula at the chin in the under view, contrast strongly with 

 the same parts in M. capita, as represented in the vignette 

 at page 240. 



There is now reason to believe that this Thick-lipped 

 Grey Mullet is equally common with the last, on different 

 parts of our coast. Dr. Parnell says, he has observed it to 



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