196 
THE YOYAGE OF H.M.S. CHALLENGER. 
Stichojpus sitchaensis (Diploperideris), Brandt, 1835 ; Lndwig, 1881. Holoihuria 
sitchaensis, Stimpson, 1857. 
Disks of the tables absent ; spire built up of four short rods, joined by a transverse 
beam, each rod terminating in two or three short teeth. Rosettes absent. 
Dorsal appendages scattered. 
Mahitat . — Sitcha (Brandt, Ludwig). 
The species is unsatisfactorily known. 
e. Deposits — dichotomously branched, slender spicules (no true 
rosettes) and aggregations of innumerable minute grains. 
Stichopus ananas (Trepang), Jaeger, 1833 ; Semper, 1868 ; Ludwig, 1881. Holo- 
tJiuria ananas, Quoy and Gaimard, 1883 ; Selenka, 1867. Holothuria 
grandis (subgenus Thelenota), Brandt, 1833. 
Dorsal appendages large, arranged in bundles, two to eight in each. 
Habitat . — Polynesia and Java (Selenka), Celebes (Jaeger), Bay of Geelvink in New 
Guinea (Ludwig), Carteret, New Ireland (Quoy and Gaimard), Lugunor in 
Caroline Island (Brandt). 
(Mus. Holm.) A very large specimen, more than a foot long, from the Navigator 
Islands. 
2 . Dorsal ambulacral appendages present only on the ambulacra. 
Stichopus hadionotus, Selenka, 1867 and 1868. 
Like Stichopus chloronotus in all respects, but distinguished by the absence of the 
C-shaped deposits. 
Habitat. — Florida, (Acapulco ?) (Selenka). 
The following species are more or less unsatisfactorily known and need re-examina- 
tion : — 
Stichopus armatus [Holothuria), Selenka, 1867 ; Semper, 1868. 
Deposits — thinly scattered perforated disks. Rather large dorsal appendages form 
four irregular rows, and, besides, small scattered papillae. 
Habitat. — Hakodadi, Japan (Selenka). 
The species is probably nothing else than a Stichopus japonicus {}). 
