FA Hö THEEL, PRELIMINARY REPORT ON THE HOLOTHURIDZ. 
bulacra, or with only a few more or less rudimental ones in its 
anterior part. Integument with spicula of various shapes. 
Elpidia glacialis THÉEL. 
Station 160, 2600 fathoms, one specimen. 
Elpidia mollis sp. nov. 
Plate II, Figs. 29—30. 
Body ovate, about twice as long as broad. Mouth anterior, 
terminal, slightly ventral; anus posterior, terminal. Tentacles of 
almost equal size, their terminal part provided with two large 
retractile, digitate processes, and with several small ones. Pedi- 
cels six along each side of the ventral surface, rather large. Pro- 
cesses of the bivium two, rather stout, elongatedly conical, 
flexible, placed side by side a little before the middle of the 
body. Integument very thin and soft, with small papille; cal- 
careous deposits of two sorts: large, straight, spinous spicula, 
much scattered; and small ones, more close-set, in the form of 
a ce. Compare fig. 30. 
Colour in alcohol, light gray, inclining to violet. 
Length, about 70 mm. 
Breadth, about 33 mm. 
Station 160, 2600 fathoms, one specimen. 
Elpidia globosa sp. nov. 
Plate II, Figs. 17--19. 
Body ovate, more or less globular, from once and a half to 
twice as long as broad. Mouth anterior, terminal, slightly ven- 
tral; anus posterior, subventral. Tentacles of equal size, their 
terminal parts bearimg numerous, small, digitate, retractile pro- 
cesses. Pedicels seven along each side of the ventral surface, 
rather large. Bivium with three processes, disposed on each of 
its ambulacra; the first pair in the anterior, and the second in 
the posterior part of the back, both of them very large and 
elongatedly conical; the third pair, immediately behind the se- 
cond, small and rudimental = Integument very thin and transpa- 
