1 30 



K. jMITRT'KUKT : STUDIES ON 



1894, p. 103.— Sluiter 1895, ]>. 78.— Lampkrt 189fi, p. .54.— Ludwio 1899, 

 ]). .j.")7 : — Sluiter 1901^ p. 11. 



lldothuria tigrls Selenka 1867, p. 33.3, Taf. XTX., Figs. 70—7-2. 



Holotlmrh cmMll Beix 1887/;, p. 144. V\. XYI., fig. 7. 



Specimens examined : — 



Description : — Tentacles 20, white, small. Ambulacral ap- 

 ]ien(lages numerous, simple, all papilla; (Thkel), at least "with 

 small terminal plates. Calcareous deposits : — ( i ) Tables solid, 

 0.048 nun. high witli a smooth, well-developed disk and a spire 

 of the usual shape terminating in a crown with 12 — 10 teeth. 

 (ii) Buttons 0.048 mm. long, symmetrical, mo,stIy with three pairs 

 of holes, and knobbed. Color : — Dorsum olive green or olive 

 brown, sometimes with irregular white spots ; ventrum whitish 



