150 K. MITSUKUEI : STUDIES ON 



markings, I have looked for a known species with such colora- 

 tion as described above. H. löllikeri Semper and IT. démens Lud- 

 wig seem to answer the description best. But in what respects 

 these two species differ from each other and from other 

 species, can not be made out from the works of the authors. 

 Seeing that they come from the same locality — Samoa Islands — it 

 is not impossible that the two are identical. I call my specimen 

 provisionally //. clcniens, as the stone-canal does not agree with 

 the description of that of //. höllikeri. 



Genus Stichopus Beandt 1835. 



34. Stichoinis ananas (Jaegep.). 



(PL I., figs. 6—8; toxtfig. 25). 



Trepang ananas Jaegee 1833, p. 24, Taf. III., Fig. 1. 



Hohthuria ananas Quoy et Gaimaed 1833, pp. 110 — 110, Taf. YI., Fig, 

 1— 3.— Selenka 1867, p. 322. 



Holothuria ananas (Siibgen. Thcronoia, Sect. Caiaarosonta) Brandt 

 1835, p. 53. 



Holotliur'ia (jramlis (Snhgen. TJteronota, Sect. Platysoma) Brandt 1835, 

 p. 53—54. 



HolotJmria grandis Selenka 1867, p. 332.— Semper 1867— '68, pp. 93, 

 279. 



Sticliopus ananas Semper 1867 — '68, pp. 75, 275. — Ludwig 1881, p. 

 591.— Ludwig 1882, p. 133.— Lampert 1885, p. 104.— Théel 1886«, p. 196.— 

 Ludwig 1889— '92, p. 331.— Slutier 1901^ p. 30, Taf. H., Fig. 1. 



Stichopus varlegatus Kent 1893, p. 234, PI. XXXV., Fig. B. 



