VERMIOLOGY. 



to be regarded as sufficient t6 form generical distinctions We have 

 no hesitation, however, in admitting our present species to be distinct 

 from the Echinus rosaceus, and under that persuasion have given it 

 as another species, under the name of suhdepressus ; it is certainly 

 less convex than Echinus rosaceus, and the greater or lesser elevation 

 of the dorsal disk appears to form one of the most striking charac- 

 ters of the respective varieties of E. rosaceus as they have hitherto 

 been considered. 



The genus Scutella of Lamarck is evidently founded on the 

 Scuta division of Klein and Echlnathi of Leske, and in the works of 

 both those writers the Echinus rosaceus constitutes the most con- 

 spicuous species ; we really think they should have both been placed 

 in the same genus, that is, either in Scutella or Clypeaster. 



The native place of our present kind, Echinus subdepressus, is 

 unknown ; it is believed to be a native of the Asiatic seas, like 

 Echinus rosaceus. We apprehend, from the rarity of its occurrence, 

 that the species cannot be common, or that at least it must be local* 

 I^amarck was unacquainted with its habitat. 



-aij tdli?sa \._ V. , . , , 



