24 I. IJIMA : HEXACTINEELIDA. I. * 



without mentioning on account of their imposing dimensions or 

 of the remarkable circumstances under which they were captured. 

 A specimen of Hyalonema sieboldi in the Science College Museum, 

 superbly preserved except for a rent which was probably made 

 by the hook or the snood, has a body 2-50 mm. long and 210 

 mm. broad ; this is probably the largest specimen of the species 

 ever obtained. Of the many specimens of Eu2:)lectella imperialis 

 in the same Museum, one in particular is distinguished by its 

 stately size, having a total length of 825 mm. and a diameter of 

 137 mm. at the top. With respect to Eujjiectella marshalli, I 

 have been so fortunate as to discover a locality (Döketsba) where 

 the dabo-line has never failed to supply me with fresh specimens 

 whenever these were wanted. On this ground I have also used 

 with success an arrangement similar to the well-known apparatus 

 used in the Philippines for the capture of B. aspergillum, viz., 

 a bamboo-rod furnished with hooks, which is dragged along the 

 bottom. 



One of the commonest glass-sponges in the Sagami Sea 

 seems to be Acanthascus cactus F.E.Scii., specimens of which 

 were at first very highly prized by us but later began to be 

 brought by the dabo-lining fishermen in such large quantities 

 that we had to cease offering any price for them, as we had done 

 long before with Hyalonemas, unless the specimens were of 

 exceptional beauty. Among the numerous exquisitely preserved 

 specimens which I have seen of Rhahdocalyptus victor Ij., the 

 most magnificient one is in the Sei. Coll. Museum. It measures 

 2 feet 10 Yo inches in length and 10.0 inches in breadth at the 

 middle. It is nearly perfect in all its parts except that it is 

 sewn together right around the middle of the body ; for, at the 

 moment it was heaved out of the sea, after coming up coiled in 



