ANNOTATED LIST. Wad. 
Holothuria edulis. 
Lesson. 1830. Cent. Zool., p. 125, pl. xlvi, fig. 2. 
(Plate 19, Figure 1.) 
The handsome coloration of this species led to its being one of the first holothurians 
taken to Europe from the East Indian region. It ranges from Mozambique and Zanzibar 
to the Caroline Islands and Fiji, north to the Riu Kiu Islands and south to tropical Queens- 
land. We took it at Erub and it was common at Mer. The largest specimen seen was 
about 400 mm. long. Semper (1868) lays special emphasis on the occurrence of papillz, 
not pedicels, on the dorsal surface. So far as I could see on living specimens, the dorsal 
appendages were like the ventral, and I should call them all ‘“‘pedicels,’’ and this well 
illustrates the worthlessness of the distinction between pedicels and papille as a taxonomic 
character. At Mer this holothurian was found under rocks on the reef rather below the 
lowest tide-marks. 
Holothuria fuscocinerea. 
Jaeger. 1833. De Hol., p. 22.—Semper. 1868. Holothurien, p. 88; pl. xxvii; pl. xxx, figs. 22a, b. 
This is not a very well defined species, in spite of Semper’s beautiful figure, and it is 
quite probable that H. curiosa Ludwig is identical with it. We took two holothurians at 
Mer, quite unlike in general appearance, which seem to be fuscocinerea, and a fine specimen 
was taken at Thursday Island on October 30, 1918, after our stay at Mer. Kent (1893) 
records the species from the Barrier Reef, and it is also listed from Ceylon, the Philippines, 
Celebes, Japan, and Samoa. But Mitsukuri (1912) does not include it among Japanese 
holothurians, and the Siboga failed to take the species in the East Indies. A comparison 
of Kent’s description with Semper’s figure is a tangible indication of how hazy the specific 
limits are. 
Holothuria hypamma! sp. nov. 
(Plate 38, Figures 20 to 24.) 
Length 165 mm. (in life, about 250 mm.); diameter 35 mm. Body rather depressed, 
thickest near middle and tapering towards both ends. Tentacles 20, very short, the whole 
oral region being relatively quite small. Pedicels rather small, more or less numerous; 
only a few scattered on middle of ventral surface, and they are nearly wanting in mid- 
dorsal region; sometimes, but not always, the ventral surface is sharply set off from dorsal 
by an imaginary line along the sides, just below which the pedicels are more crowded than 
elsewhere; dorsal pedicels sometimes enlarged and papilliform, but mostly like ventral, 
except more tapering; the differences are distinguishable in life, but are very insignificant 
in preserved material. No anal teeth or conspicuous anal papilla. Calcareous ring notably 
asymmetrical, the dorsal side, especially the two radial pieces, being very much stouter 
and better developed than the ventral; dorsal radial pieces about as high as wide, the 
anterior corners rounded, and the margin between them notched. Polian vessel single, 
long. Madreporic canal single, very small, only the tip free. No Cuvier’s organs. 
Calcareous deposits excessively numerous, so that the body-wall is hard, in two prin- 
cipal forms, tables and buttons. Tables (pl. 38, figs. 21-23) in a crowded outer layer, so 
stout and spiny or warty that they are well-nigh spherical, even distorted; disk-diameter 
about 0.070 to 0.080 mm.; height of spire somewhat less, but its diameter at top, which is 
thickly covered with stout teeth, about 0.040 mm.; lower surface of disk not flat as 
usual, but more or less markedly convex; upper side of disk and base of spire with many 
knobs and tubercles. Buttons (pl. 38, fig. 24) so crowded that there are about 9,000 to 
each cubic millimeter of skin; they typically have 3 pairs of holes and 12 spherical 
knobs on each surface, but very few are symmetrically developed; they range in length 
1 i6 = under + duoc = sand, in reference to the manner of life. 
