174 



( IDARITES. 



neighbourhood of Stromness, Orkney. T have little 

 doubt as to its being the Echinus neglectus of La- 

 marck. Klein's " Cidaris miliaria, sp. in. angulosa," t. 

 ii. f, and in. a, b, resembles it greatly, but has been 

 referred to an Indian species, the Echinus subangulosus 

 of Lamarck. 



The vignette represents the microscopic structure of 

 the head and stalk of a Pedicellaria. 



