REPORT ON THE HOLOTHHRIOIDEA. 
233 
Further investigations are required to prove whether there really exist any differences 
between this species and Solothuria coluhcr, which at least must be nearly allied. 
Rolothuria kularyi has a whitish colour, the spire of the tables lower and more 
spinous, and pedicels aU over the body, while Rolothuria coluher is blackish, and 
has pedicels as well as papillae, &c. 
II. Ambulacral appendages — papillae alone. 
1. Buttons smooth. 
Holothuria princeps, Selenka, 1867. 
The disk of the tables provided with twelve spines on the margin, and the spire, made 
up of four rods and one transverse beam, terminates in eight teeth. The buttons 
of delicate construction, s}Tnmetrical, and undulated on the margin. In the 
papillae the tables are transformed, presenting themselves under the shape of 
conical slender bodies with the disk reduced to a simple ring and the spire 
terminating in a simple point. 
Rahitat. — Florida (Selenka), Egmont Key (Verrill). 
The species is characterised by the radial pieces of the calcareous ring being pro- 
longed and bifurcated posteriorly. To judge from the figure given by Selenka, the 
buttons must be smooth and pierced with six holes, though the author does not 
mention anything about that in the text. 
Holoihuria impatiens (Fistularia), Forskaal, 1775 ; Gmelin, 1788 ; Semper, 1868 ; 
Ludwig, 1875. Trepang impatiens, Jaeger, 1833. Thyone impatiens, Blain- 
ville, 1834. Sporadipus impatiens, Grube, 1840. Holothuria hotellus, 
Selenka, 1867 and 1868 ; Semper, 1868. Holothuria fulva, Quoy and 
Gaimard, 1833. 
The smooth solid disks of the tables are, as a rule, pierced with nine nearly equally 
large holes in three rows, and the spire, made up of four rods and one or two 
transverse beams, terminates in numerous teeth. The symmetrical buttons have 
always six holes. 
Rahitat. — Mediterranean Sea (von Marenzeller, Grube, Ludwig, Semper, &c.). 
Red Sea (Gray, Forskaal, Ludwig, Semper), Gulf of Suez (Gray, Semper), Zanzibar 
(Selenka), Mauritius (Haacke, Ludwig), Mozambique (Semper, Bell), Madagascar 
(Ludwig), Amboina (Ludwig, Semper), Philippine Islands, Navigator Islands, 
Fiji Islands, Nicobar Islands, Pelew Islands, MacKean’s Island and Palma 
(Semper), Society Islands, Sandwich Islands, Tortugas, Florida, and Panama 
(Selenka), Java (Semper, Kuhl and Hasselt), Timor, Banda, Cape York, Tahiti, 
and Surinam (Ludwig), New Holland (Quoy and Gaimard). 
(ZOOL. CHALL. EXP. — PAKT XXXIX. — 1886.) 
Qq 30 
