REPORT OX THE HOLOTHURIOIDEA. 
103 
Ciicumana ecJanata, you Marenzeller, 1881. 
Body ovate. Radial pieces of the calcareous ring with two very short, obtuse pro- 
longations. Buttons with rounded knobs, about eight holes, and with one end 
drawn out into a long, slightly outwardly-directed, simple spine. 
Uclnffit . — Japan or China (v. iMarenzeller). 
d. Deposits in the shape of tables alone, or tables together with plates. 
Cucnmana popidifer {Pentacta), Stimpson, 1864. (1) Cladodactyla (Holigoclados) 
alhida, Brandt, 1835. (?) Cucumaria alhida, Ludwig, 1881. 
Body thick, fusiform, “ covered with minute, perforated polygonal plates, each plate 
having from twenty-five to forty holes, and being armed with a sharp umbo or 
spine at the centre of its outward surface.” 
Hnhitat . — Sitka (Brandt), Puget Sound (Stimpson). 
Tliese plates of Stimpson may probably be referred to tables, the central spine being 
a reduced spire. Calcareous ring unknown. 
Cucrinmna calcigera {Pentacta), Stimpson, 1854 ; Selenka, 1867 ; Duncan and Sladen, 
1881. (?) Cucumaria hyndinanni, Forbes, 1852. Ciiciimariahorcnii,\Mpk&ci, 
1857. 
In the middle of the curved, posteriorly-tapering body, the pedicels lie more closely 
crowded, so as to form four rows. Integument thin, but rough and 
rather hard from very closely crowded deposits forming two layers ; those in 
the inner layer being more oblong and narrow plates, generally pierced with two 
or three rows of holes ; those in the outer being tables, consisting of an irregularly 
rounded, oblong or stellate disk perforated with more or less approximated holes, 
from the centre of wliich an elevation rises made up of fine rods, and terminating 
in spines or teeth. Calcareous ring with long posterior prolongations. 
Hahitat . — Greenland (Ltitken, Duncan and Sladen, Ludwig, Norman), Welhngton 
Channel (Forbes), Labrador (Verrill), Massachusetts (Stimpson), Nova Zemhla 
and Sea of Kara (Stuxberg). 
(Mus. Hohn.) A great number of specimens dredged at Nova Zembla and several 
localities off Greenland. The largest measures up to 120 mm. in length, the 
smallest about 6 mm. Body always curved and tapering posteriorly into a 
caudal portion, while the anterior extremity is more truncated. The disks of 
the tables seem to be comparatively large, and the spire is generally of a more 
irregular shape, in consequence of which it is difficult to get any information as 
to its true shape; sometimes the spire seems to be built up of only two rods and 
one transverse beam, but it is mostly composed of several rods, and terminates 
in several spines. The underlying irregularly shaped plates sometimes seem 
to bear one or a few minute knobs or elevations near their centre. In the 
