78 



K. MITSl'KUKI : STUDIES ON 



1886a, p. 216.— LuDNYiG 1887/', p. 1227.— Ludwig 1888, p. 807.— Ludwig 

 1889— '92, p. 329.— Kent 1893, p. 237.— Sluitek 1894, p. 103.— Koehler 

 1895t7, p. 281.— Sluitei! 1895, p. 79.— Bedford 1899a, p. 147.— Ludwig 

 1899, p. 559.— Sluitek 1901&, p. 8. 



Trepang edidis Jaeger 1833, p. 24. — ^Beandt 1835, p. 57. 



Hololhuria fiiscocinerea Selenka 1867, p. 337, Taf. XIX., Fig. 86. 



Holotlmria signala Ludwig 1874, p. 23, Fig. 36. — Lamfert 1885, p. 64. 

 — Theel 1886a, p. 222.— Ludwig 1889— '92, p. 330.— Lamfert 1896, p. 53. 



S})ccimcns examined : — 



Description : — Tentacles 20. Dorsal papiIl;D minute and more 

 scattered than the ventral pedicels. 2-5 Polian vesicles ; 2-.5 

 stone-canals united into a bundle. The disks of the tables reduced 

 to a small ring narrower than the top of the spire, which, seen 

 from above, presents a small circular hole surrounded by four 

 prominences, each with about four or live minute teeth. Tlie 

 fenestrated plates nearly like those in //. grisca. Dorsum violet- 

 black. Ventrum and the sides beautiful red. Length of body 

 10 cm. In alcoliol, dark reddish-brown on the back, light greyish 

 on the ventral surface and the sides. A minute dark ring round 

 the base of light-colored pedicels. (After Lampekt and Theel). 



