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THE VOYAGE OE H.M.S. CHALLENGER. 
h. Deposits — ^tables consisting of a large, rounded, richly perforated 
disk, supporting a long conical spire, built up of four rods 
which are spinous all over their length and joined by four to 
five transverse beams. 
Stichopus regalis {Holothuria), Cuvier, 1817 ; Selenka, 1867 ; Sars, 1857. Holothuria 
columncB, Cuvier, 1817. Holothuria triquetra, Delle Chiaje, 1828. 
Hahitat . — Mediterranean Sea (Sars, Selenka, Graeffe, Heller, Grnbe, Ludwig, &c.), 
Australia ? (Semper), Canary Islands (Greeff), Bay of Biscay (Norman). 
(Mus. Hohn.) One specimen from Naples. The dorsal appendages are larger on the 
distinct sharp margin, which marks the transition between the dorsal and ventral 
surfaces, hut they decrease towards the middle line of the dorsum ; they never 
attain any greater sme. In some disks of the tables I counted more than fifty 
holes, and, as a rule, the disks are remarkable for having a great number of 
holes ; even the spires of the tables are characteristic in that their four rods 
bear spines not only at their apex but even along almost all their length. Rosettes 
absent. 
c. Deposits — tables of two kinds, like those in Stichopus godeffroyi, 
var. 6, thus larger and smaller tables with the truncated apex 
of the spire terminating in several teeth, and large robust 
tables with a conical spire terminating in a simple point. 
Stichopus godej^royi, Semper, 1868. 
The truncated spires terminate in eight to twelve teeth. Incomplete rosettes present. 
Four rows of larger dorsal appendages, and numerous small ones scattered over 
the interambulacra. 
Habitat . — Navigator Islands (Semper). 
d. Deposits — tables of one kind, viz., those with the spire built up of 
four rods and one transverse beam (seldom two or more), 
and terminating in several teeth. 
Stichopus godeffroyi, var. pygmceus, Semper, 1868. 
Like the preceding species ; the disks of the tables are larger. 
Habitat . — Fiji Islands (Semper), Navigator Islands (Semper). 
Stichopus japonicus, Selenka, 1867 ; von MarenzeUer, 1881. 
The tables are of different sizes, and their spire is mostly built up of four rods 
joined by one, two, or more transverse beams ; the spire terminates in four 
