206 
THE VOYAGE OF H.M.S. CHALLENGER. 
Holothuria moehii, Ludwig, 1883. 
Ventral pedicels more numerous than the dorsal papillae. Deposits — numerous 
finely granulated rods, and, besides, in the ventral perisome quite smooth 
rods. 
Habitat. — Hong Kong (Ludwig). 
Nearly allied to the preceding species, hut differing from it in the structure of the 
rods as weE as by the presence of H -shaped supporting rods in the ventral 
pedicels. 
(Mus. Holm.) One individual brought home from Mauritius. 
Holothuria erinaceus, Semper, 1868. Holothuria erinaceus, var. pygmaa, Semper, 
188. 
Ventral pedicels numerous ; dorsal papillae fine and even closely placed. Deposits — 
numerous rods provided with spines or prominences and slightly branched at 
the ends. 
Habitat. — Bohol and Luzon (Semper), Fiji Islands (Semper), Port Mackay (Semper). 
Semper supposes the species to he very nearly related to Holothuria glaberrima 
and possibly identical with it. , He even speaks of some young, which are 
said to have the ventral pedicels disposed in more or less distinct rows, 
and possess tables besides the rods, which tables vanish as the individual 
grows larger. It seems more probable that these “ young ” belong to another 
species. 
(Mus. Holm.) Two specimens obtained at the Fiji Islands, the largest 200 mm. long, of 
a dark brown colour inclining to blackish ; ventral surface lighter ; pedicels 
Eght yeUowish-brown. The dorsal papiUee small, not so crowded as the 
pedicels. The calcareous rods bear a few spines on their sides, and their 
ends are slightly branched or perforated. Excepting terminal plates, no other 
deposits. 
Holothuria paradoxa, Selenka, 1867. 
Ventral pedicels more numerous than the dorsal, which may be of the same kind. 
Deposits — in the ventral perisome smooth rods and x -shaped bodies, the arms of 
■ the latter being branched and often united so that the bodies take the shape of 
smaU perforated plates ; in the dorsum more finely constructed x -shaped 
bodies alone are to be found. 
Habitat. — Sandwich Islands (Selenka). 
Doubtless closely aUied to Holothuria glaberrima, from which it differs in some 
characters of more or less importance. Thus, the madreporic canal is free in 
Holothuria glaberrima but attached in Holothuria paradoxa ; in the former the 
