502 



^Ir. ^V. I\. Fislier — Notes on Asferoidea. 



disk by a slight constriction at base ; abactinal surface more 

 or less swollen ; entire body very soEt aiul flexible ; axils 

 rounded ; abactinal surface with tmmerous, widely spaced, 

 small, acicular spinelets, mostly bidden by obconical tough 

 sheaths bewaring numerous crossed pedicelbuife on the distal 

 expanded end ; each altent'ite superomarginal ])late with a 

 similar but much larger s|)ine (3 nun.) ; each inferomarginal 

 with 2 somewhat flattened, blunt or truncate, stout spines 

 (subequal to the superomarginals) ; one pair of enlarged 

 adambulacral plates meeting behind the oral plates, their 

 median suture shorter than that of oral plates ; the inter- 

 mediate superomarginal ossicles very weak, lacking on outer 

 part of the ray ; submicroscopic perforc'.ted plates numerous 



Fiff. 2. 



)<2> S <2> <s:- 



Ly/iastrosoma anthosticta, x 10. Marginal plates from near tip of ray ; 

 base of raj toward left ; showing absei\ce of connectives. 



s, 8, s, spiniferous superomarginals ; t, i, inferomarginals. 



in abactinal integument ; tube-feet large, crowded in four 

 rows ; furrows broad. 



Mororan, Hokkaido, Japan. Collected by D. S. Jordan 

 and J. O. Snyder, 1899. 



Type will be deposited in U.S. National Museum ; a co- 

 type will be deposited in the British Museum (Natural 

 History). 



Anasteiias, Perrier. — Kcehler, in his recent splendid rejiort 

 on the Asteroidea of the Austialian Antarctic Expedition*, 

 gives considerable attention to this group, to wliicli he adds 



* 'AuPtrallan Antarctic Expedition, 1911-14, Echinodermata Aste- 

 roidea ' (Series C, vol. viii. part 1, Nov. 1920), 



