74 AET. 2. — H. MATSUMOTO : 



Astrodendrum sagaminum : Döderlein, Abli. Math.-Phys. Kl. K. Bayer. 

 Akad. Wiss., Suppl.-Bd., I, 1911, p. 38, PI. H, figs. 3-5, PI. Yn, fig. 8; 

 BoMFOED, Bee. Ind. Mus., IX, Pt. 4, 1913, p. 220. 



Nnmerous specimens ; off 



Misaki, Sagami Sea; 100-200 



a 



fathoms. ,^w^''*^ 



Ose Zaki, Sm-uga Gulf; 63- ASW ■^im^^^^' 



75 fathoms (Claek). Eastern Sea ; 



95 fathoms (Clark). Sea of 

 Japan ; 59-172 fathoms (Claek). 

 Sagami Sea (Dödeelein). vj^V 



Indian Ocean (Bomfoed). ÂJ* ',s^^^^^m' • 



Ar* 'w^ ^%*'* ^^-N 

 Key to Japanese species and '^'^^ wl y »'f^ 



varieties of Astrocladus, '^ j w «"^ 



Fig. 21. Astrodeiidrum sagaminum. x3. 

 ^-Disk covered by an apparently ^^ p^^^ ^^^^^ ^ ^^^^ ^^,^^ 



smooth skin, in which how- 

 ever very fine, insignificant, close-set granules are contained ; internal 



structure as in the second type of GorgonocepJialus annulât lis. 



A A — Dish covered by a pavement of granules, which have acute, spiny 

 tips ; internal structure as in the third type of GorgonocepJialus .... 



coniferus. 



a — Disk and arms free of tubercles, or a conical, blunt tubercle may 



occur on each radial rib near the outer end. 

 h — Colour variegated, with whitish ground colour and purpHsh brown 



patches of various shape and size var. pardalis. 



hh — Colour simple, deep pm-pHsh brown or purplish black 



typical coniferus. 



aa — Disk and arms beset with numerous hemispherical, or more or less 

 conical, tubercles; colour variegated, or simply deep pm'pHsh brown 

 or purplish black var. doßeini. 



