REPORT ON THE ASTEEOIDEA. 



567 



Volcanic mud : Asterias meridionalis, Asterias perrieri, Asterias fasciexdaris 

 (also on Volcanic sand), and Asterias (Smilasterias) scalpri/era. On Blue mud : 

 Asterias (Cosmasterias) sulcifcra and Asterias (Ilydrasterias) ophidion. On 

 clay : Asterias linckii (also on hard ground), Asterias panopla, Asterias spitz- 

 hergensis, Asterias gunneri, and Asterias normani. On mud : Asterias brandti, 

 Asterias bellii, Asterias cribraria. On Green mud : Asterias vesiculosa and 

 Asterias (Stolasterias) stichantha. On hard ground, gravel or rock : Asterias 

 littoralis, Asterias tenera, Asterias (Leptasterias) compta, Asterias rupicola, 

 Asterias hyperborea, Asterias hartii, Asterias (Smilasterias) triremis, Asterias 

 cunninghami (also on sand), and Asterias acervata. On Volcanic sand : 

 Asterias studeri and Asterias contorta. On sand : Asterias obtusispinosa, 

 Asterias gracilis (also on hard ground), Asterias tanneri (also on mud and 

 shells), Asterias versicolor, and Asterias glomerata. On Green sand : Asterias 

 ( Cosmasterias) tomidata. 

 The types of the following species are lost and unknown. I consider, therefore, that 

 the names should be discarded : — 



Asterias aster, Gray. 



Asterias bootes, Miiller and Troschel. 



Asterias echinata, Gray. 

 Asterias Wilkinsoni, Gray. 



The species collected by the Challenger are indicated in the above list by an asterisk. 

 Chorological Synopsis of the Species herein mentioned. 



