88 ART. 7. — I. IJIMA : HEXACTINELLTDA, IV. 



/f. — Canals narrow, nnder 2 mm. diameter. Discohexastir, splierical, 80-90 |j. in diame- 

 ter ; usually with only o, widely divergent terminals to eacli principal 



//. saganiiensis Ij. 



''. — Canals as in the above. Discoliexaster, not spherical, 40-50 a in diameter; with 

 12 or more terminals in a separate, outwardly expanding tuft to eacli principal... 

 H. siiuilii^ I J. 



<••— ( anals mny ho very wide, reaching several nnn. in diameter. Discohexaster, spheri- 

 cal, 30-38 ;j. in diameter; with about 10 or less terminals to each principal 



H. fflganteus Ij. 



HYALASCUS SAGAMIENSIS Tj. 



?]. y II. and PI. VIII., figs. 1, -2. 



Hyalascus sagauiiens'is. Iji:\ia, '96, p. 251. — F. E. Schulze, 

 '97, p. Ö25. 



The species is based on a single specimen (PI. VII., fig. 1) 

 wliicli belonged to Mr. Alan Owston. After I had studied it, 

 as I understand, the specimen passed into the possession of Prof. 

 B. K. Emerson of Amherst College, Mass., in which institution 

 it is now probably j^reserved. 



It was stated to have been obtained by some fisherman in 

 the Sagami 8ea. Nothing further about the circumstances of the 

 capture is known. 



The specimen had been torn off at the inferior end. The 

 wall liad also been toi'ii lengthwise right through, Init this had 

 been repaired 1)y sewing together tlie severed edges. Notwith- 

 standing the above defects I believe, especially in view of the 

 shape presented by //. similis (text-fig. o) which so closely 

 resembles the present species that the specific distinctness may 

 almost l)e doubted, tliat the specimen liad suffered but little 

 change from the original natural shape and that it had been 



