REPOET ON THE HOLOTHURIOIDEA. 
119 
and perforated with longitudinal rows of holes. Calcareous ring made up of ten 
simple pieces without posterior prolongations ; the five ventral pieces larger. 
Habitat. Norway (Sars, Storm, Mobius and Btitschli), several locahties in the North 
, Atlantic Ocean near Norway (Danielssen and Koren), Arctic Sea north from 
Norway (Hoffinann), north of Scotland (Th4el), Bay of Biscay (Norman), Florida 
Beef (Pourtalfes). 
(Mus. Holm.) Several specimens from Norway. 
“ Porcupine” Expedition. — One specimen from Station 15, June 16, 1869; lat. 54° V N., 
long. 12° 14' W.; depth, 422 fathoms. 
Echinocuciimis adversaria, Semper, 1868. 
Pedicels long, in double rows on the posterior narrow caudal portion ; on the rest of 
the body they are placed three to four in breadth in the ventral ambulacra but 
are more rare in the dorsal. Disks of the tables deeply incised in the margin, 
thus acquiring a stellate or angular appearance; consequently the holes are 
fewer and placed in a manner different from that in the preceding species; the 
spire consists of a simple, long, imperforate spine. Tentacles unknown. Cal- 
careous ring absent. 
Habitat. — Bohol, Pandanon (Semper). 
(?) Echinocucumis alba [Chirodota {?)), Hutton, 1872 and 1879. 
Habitat . — New Zealand (Hutton). 
The species is quite unknown, and certainly does not belong to this genus. 
Genus 4. Coloehirus, Troschel, 1846. 
Tentacles ten, two ventral smaller. Anterior extremity of the body usually with five 
valves. Ambulacral appendages of two kinds — pedicels and paiDillse, the latter 
often situated on the top of warts or protuberances. Pedicels, confined to the 
ventral surface, are, with a few exceptions, placed on the three ambulacra, thus 
forming distinct longitudinal series. The most anterior and posterior portions 
of the ventral surface are devoid of pedicels, which here are exchanged for 23apilla9. 
Exceptionally, papillae may also be found scattered over the ventral interambulacra. 
Papillae strictly belonging to the dorsal surface, where they form rows along tlie 
ambulacra alone, or are irregularly distributed all over that surface. Calcareous 
ring of ten simple pieces, devoid of posterior prolongations, three ventral pieces 
often narrower. Deposits — larger or smaller reticulate scales, together vfith one 
or several kinds of small bodies. 
