OF SELBORNE. 15 



Genus of Mytilis and the species of Crista 

 Gain ; called by Lister, Rastellum ; by 

 Rumphius, Ostreum plicatum minus ; by 

 D*Argenville,Auris Porci, s. Crista Galli ; 

 • and by those who make collections cock's 

 comb. Though I applied to several such 

 in London, I never could meet with an 

 entire specimen ; nor could I ever find 

 in books any engraving from a perfect 

 one. In the superb museum at Leicester 

 house, permission was given me to exa- 

 mine for this article ; and though I was 

 disappointed as to the fossil, I was highly 

 gratified with the sight of several of the 

 shells themselves in high preservation- 

 This bivalve is only known to inhabit the 

 Indian ocean, where it fixes itself to a 

 zoophyte, known by the name Gorgonia, 

 The curious foldings of the suture the 

 one into the other, the alternate flutings 

 or grooves, and the curved form of my 

 specimen being much easier expressed 

 by the pencil than by words, 1 have 

 caused it to be drawn and engraved. 



