HOLOTHUEIAXS. 



147 



Loc. Several specimens from Lifu, Loyalty Islands, and one off China Straits, New 

 Guinea. 



Most quite typical, but in one of the Lifu specimens the spots are completely 

 absent, and in the New Guinea specimen the spots are much darker and often 

 confluent. 



In three specimens dissected, several Polian vesicles and one stone-canal ; deposits 

 typical. 



7. Holothuria atra Jaeg. var. amboinensis Semper. 



H. Ludwig. Ber. Oberh. Gesell. 22, 1883, p. 170. 



Holothurin aniboinensi.s Semp. C. Semper. Reisen Philipp. Hoi. 1868, p. 92. 

 Holothuria atra Selenka. 



E. Selenka. Z. f. w. Z. 17, 1867, p. 327. Taf. xvm. figs. 52, 53. 



References: C. P. Sluiter. Natuurk. Tijd. v. Ned. Ind., 1887, p. 187. 



K. Lampert. Zool. Jahrb. Syst, iv. 1889, p. 813. 



C. P. Sluiter. Semon's Forsch. in Austr. u. Mai. Arch. Bd. 5, Lf. 1, 1894, 

 ]>. 103. 

 Loc. Loyalty Islands. 



Three specimens, 10 cm., 43cm. and 37 cm. in length, all of the uniform black 

 or dark-brown colour characteristic of var. amboinensis. 

 Deposits typical, discs of tables not always spinous. 



Table of Variations. 



Body-wall very much thicker in smaller specimen than in other two. 



8. Holothuria edulis Lesson. 



Holothuria fuscocinerea Selenka (not Jaeger). 



E. Selenka. Z. f. w. Z. 17, 1867, p. 337, Taf. xix. fig. 36. 

 Reference: C. Semper. Reisen Philipp. Hoi. 1868, p. 89. 

 Loc. Lifu. 



One specimen 10 cm. long ; colour in spirit dirty brown, darker on dorsal side. 

 Size of tables much more reduced than in H. atra. 

 Several Polian vesicles, about 14 stone-canals in a group, no Cuvierian organs. 



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