ECHINODEKMATA WHITBLEGGE. 161 



HOLOTHURIA ARGUS, Jaeger. 



Holothuria argus, Jaeger, DeHoloth., 1833, p. 19, pi. ii., fig. 1 ; 

 Semper, Reisen Arch. Phil. Holoth., 1868, p. 80, pi. xxx., 

 fig. 11 ; Saville Kent, Great Barrier Reef, p. 56, p. 238, 

 pi. xii., fig. 7. 



One example, found on a sandy bottom in the lagoon, where it 

 was fairly common. 



HOLOTHURIA ATRA, Jaeger. 



Holothuria atra, Jaeger, DeHolotb., 1833, p. 22 ; Semper, Reisen 

 Arch. Phil. Holoth., 1868, p. 88, pi. xxvi. ; Theel, Chall. 

 Rep., Zool., xiv., p. 181, pi. vii., fig. 4. 



Four specimens ; very abundant on the outer reefs. 

 Native name, " Malorli." 



HOLOTHURIA VAGABUNDA, Selenka. 



Holothuria vagabunda, Selenka, Beitrage Anat. Syst. Holoth., 

 Zeits. f. Wiss. Zool., xvii., 1867, p. 334, pi. xix., 

 figs. 75-76 ; Semper, Reisen Arch. Phil. Holoth., 1868, 

 p. 88, pi. xxi. ; Lampert in Semper's Reisen Arch. Phil., 

 iv., p. 71, pi. i., figs. 3-19. 



Two specimens, obtained in the mangrove swamps under stones 

 at low tide. 



HOLOTHURIA PARDALIS, Selenka. 



Holothuria pardalis, Selenka, Beitrage, Anat. Syst. Holoth. 

 Zeits. f. Wiss. Zool., xvii., 1867, p. 336, pi. xix., fig. 85 ; 

 Semper, Reisen Arch. Phil. Holoth., 1868, p. 87, pi. xxx., 

 %. 31. 



Four specimens, obtained in the mangrove swamps. 



HOLOTHURIA IMITANS, Ludwig. 



Holothuria imitans, Ludwig, Arb. Zool. Zoot. Inst. Wurzburg, 

 ii., 1875, p. 109, pi. vii., tig. 41 ; Lampert in Semper's 

 Reisen Arch. Phil., iv., p. 80. 



With some hesitation I refer to this species five small speci- 

 mens, which agree in the main with the descriptions given by 

 Ludwig, Lampert, and Theel. 



The tentacles are twenty in number, the colour is dark brown, 

 the deposits consist of curved bars and tables. The bars appear 

 to be confined to the ambulacral appendages and to the tentacles ; 



