S E C T I O N II. 29 



His next criticifm (hews him diveftcd 

 of common grammatical knowledge : his 

 wordii are, the third book of Lifter is 

 of Bivalves ; he mixes the families with 

 the Murex or Rock, and calls fome 

 Peden Muricatus, Spondylus Muricatus^ 

 &c, Argenville certainly might have 

 fpared the prefs from groaning under fucli 

 trivialities, had he known common ex« 

 prefiion : for the word muricattis has no 

 dependence on murex at all ; it is an ad- 

 jective, of itfelf grammatically lignifying 

 any fubjedt rugged, or full of fharp points. 

 Yet this poor critick would ftrive to 

 prove, that Lifter, by his Pe£len or Spon- 

 dylus Muricatus, joins, as he expreffes 

 himfelf, two different families of Shells 

 toffetlier, and means a Rock Turbinate 

 Efcallop, or Rock Turbinite Spondyle : 

 whereas be means no more than a Muri-» 

 cated or Thorny Efcallop or Spondyle, 

 without any relation or tendency to the 

 Mutices or Rock Turbens. He alfo eri- 

 ticifes Lifter's adjedlives of margaritlferus 



and 



