120 THE DEPTHS OF THE SEA. [chap. hi. 



Aster opsls pulvillus, O. F. Mullek, were not met 

 with beyond the 100-fathom line. A curious little 

 group of cushion stars, hitherto supposed to be con- 

 fined to high latitudes, were represented by l?te raster 

 militaris, M. and T., and P. pulvillus, Sars, and by 

 two forms new to science, — one, Koreth raster his- 

 piclus, sp. n., with the whole of the upper surface 

 covered with long* free paxilhe like sable brushes (Fig. 

 15). Ranges of delicate spatulate spines border the 



Pin. 16. -Hyvienastcr pelluddus, Wyville Thomson. Ventral aspect. Natural size. iNo. 59) 



ambulacral grooves. As in Pteraster, there is a double 

 row of conical water feet. The other genus (Fig. 10) 

 is perhaps even more remarkable. The star-fish is 

 very flat, the dorsal surface covered with short paxilhe 

 which support a membrane as in Pteraster. A row 

 of spines fringing the ambulacral grooves is greatly 

 lengthened and webbed, and the web running along 

 the side of one arm meets and unites with the web 



