200 
THE VOYAGE OE H.M.S. CHALLENGEE. 
3. Deposits — simple rods, or minute x -shaped bodies often with the short arms 
more or less dichotomous and dilated so as to give the aspect of incom- 
plete rosettes. 
Mulleria obesa, Selenka, 1867. 
Deposits — finely granulated simple rods. 
Habitat. — Sandwich. Islands (Selenka). 
Mulleria miliaris (Holothuria), Quoy and Gaimard, 1833; Brandt, 1835; Selenka, 1867. 
Holothuria lineolata, Guoy and Gaimard, 1833. Mulleria lineolata, Brandt, 
1835. Mulleria plebej a, Selenka, 1867 and 1868. 
Deposits — minute rods with the ends slightly dichotomously branched, often presenting 
themselves under the shape of x or incomplete rosettes. Pedicels forming 
three more or less distinct series. 
Habitat . — Zanzibar (Selenka), Tonga and Vanikoro (Quoy and Gaimard), Indian 
Ocean (Ludwig), Nossib4 in Madagascar (Ludwig), Mauritius (Haacke, Ludwig), 
Amboina, Timor and Padang in Sumatra (Ludwig), Mozambique and Querimba 
(Semper), Eed Sea (Ludwig). 
(Mus. Holm.) One specimen from Penope and four from the Fiji Islands, all of a dark 
chocolate-brown colour, with the pedicels in more or less obvious rows. The 
minute incomplete rosettes are all of the same size, few and scattered and not 
collected in groups. 
Mulleria lecanora, Jseger, 1833; .Semper, 1868 ; Ludwig, 1881. Holothuria dubia 
(subgenus Microthele), Brandt, 1835. Actinopyga lecanora, Bronn, 1860. 
Almost like the preceding species, but the colour on the dorsal surface is always well 
marked out from that on the ventral, and the anus is always surrounded by a 
well-defined lighter space. 
Habitat . — Philippine Islands (Semper), Celebes (Jaeger), Bonin Islands (Brandt), Timor 
(Ludwig), Mauritius (Haacke, Ludwig). 
(Mus. Holm.) One specimen (170 m m. long) from Tongatabu, one from Mauritius, and 
a third from the Fiji Islands. Dorsal surface uniformly chocolate coloured; ventral 
surface and a weU-defined space round the anus lighter, inclining to yellowish. 
Pedicels more crowded along the ambulacra, so that an arrangement in three longi- 
tudinal series becomes discernible. The dorsal papillae thinly scattered and small. 
No supporting rods in the pedicels and papillae. The incomplete rosettes in the 
perisome are minute, of nearly equal size, resembling those in the preceding species, 
but in Mulleria lecanora they always seem to be collected in small closely placed 
groups. The individual dredged at Mauritius has the dorsal surface marbled 
by means of the small papillae which are surrounded by a whitish space. There 
is no doubt that the species in question is very nearly allied to the preceding. 
