17.2. ART. 7.— I. IJIMA: IIEXACTINELLIDA, IV. 



(32 (i, according to F. E. Sch.). In shape tliey are spherical, 

 the six tufts of terminals in the same spicule being not widely 

 separated from one another. The terniinals are not very nuuiei'ous; 

 they are exceedingly fine and about twice as long as the principal. 



The slimness of the rays in all the spicules, the sparsely 

 microtuberculate character of the dermalia and gastralia as well 

 as the small size of the discoctaster seem to make up the more 

 conspicuously distinctive features in the spiculation of this species. 



STAUROCALYPTUS DOWLINGI (L. l\. Lamüe). 



R]iab(locaIyptu6 dotdhuji. Lamjje, '93 (!), p. o7 ; PL III., 

 figs. 2, 2a-2h. — F. E. Schulze, '97, p. 554. 



Siauroccdypias (JowUnfji. F. E. Scjiulze, '99 (!), p. 47 ; PI. 

 IX., ligs. 1-6. — {Kol IjiMA '97, p. 5o ; nor Ijima '98, p. 53). 



The following account of this species is given more for the 

 purpose of furnishing basis with which to compare certain Japanese 

 forms, than to give the results of my own observations on the 

 sample taken from the Canadian type-specimen and which was 

 kindly sent to me at my request by ISlv. L. M. Lambe of Ottawa. 



As mentioned before (pp. 165-167) I now consider, contrary to 

 my earlier assumption (Ij. '97), that this species is not represented 

 in the Japanese waters so far as is known at present. The 

 localities then to be assigned to the species are : Strait of Georgia 

 (Canada ; al)Out 60 m.), near St. Ivosa Island (California; 221m.). 

 and near Lenard Rock (Aleutian Islands ; 512 m.). 



