302 ART. T. — 1. IJIMA : HEXACTINELLIJDA, IV. 



oiitwarcl«. ]\Iicro(li8C()li(jxaHtery, present in variable niiiul)er8 ; 22- 

 27 /'- ill diel. 



K. tfH{/tflrtff((fKs L). — Vase-like ; entirely eovered with ;i 

 thick irossaiuer-Kke veil. Dermalia, iiearlv all rouoh dicictin.s. 

 Gastralia, hexactiiis ; similarly rough l)ut with iiiuch longer ray«, 

 the free proximal ray being especially well develo])ed ; the radial 

 axis, 640-850 y- long. Oxyhexasters, loO-lGO /'- in diameter ; not 

 infrequently heniihexactinose and only occassional ly hexaetinose. 

 DiscoL'tasters, 143-11)0 /< in diameter; principals, 20-2-5 /< long; 

 terminal tufts ex[)ajided at the (juter end ; terminal discs with 

 strongest marginal teeth on the side turned awav from the axis 

 of the tuft, or toothed only on that side. ^Lierodiscohexasters, 

 sparse ; 22-30 f^- in diameter. 



Ji. caplllatiis Ij. — Yuse-like or sac-like, more or less laterjdly 

 compressed ; entirely covered with a thick gossamer-like veil. 

 4)erinalia, nearly all rough diactins. Gastralia, rough hexactins 

 in which the free [)roximal ray may be twice as long as any 

 other ray in the same spicule. Oxyhexasters, 10(3-130 !'■ in dia- 

 meter ; occasionally heniihexactinose and rarely hexaetinose. Disc- 

 octaster small, measuring 82-lOG !'■ in diameter ; terminal tuft 

 distinctly outHaring at the outer end. MicroLliscohexasters, s[)arse ; 

 20-25 !'■ in diameter. 



