HAWAITAX IIOLOTHimiANS— FISHER. 739 



Station 4136, vicinity of Kauai Island. Depth, 294 to 352; bottom, fine coral sand:. 



Memtharia caniosa. 

 Station 4139, vicinity of Kauai Island. Depth, 512 to 339; bottom, fine gray sand 

 and rocks: 



Mesothuria carnosn, Protditki/ra dlhatrossi. 

 Station 4140, vicinity of Kauai Island. Depth, 339 to 437; bottom, fine gray sand: 



Bathyplotes jjatagiatits, Ocphnurgw^ insiijnifi, Protanki/ra (tlh<itr(>f!fii. 

 Station 4141, vicinity of Kauai Island. Depth, 437 to 632; bottom, volcanic sand, 

 foraminifera: 



Pidopatidei^ retifer, Lnimoi/o^e Jiiserlolis, Protaiiki/ra (dhatrosKl. 

 Station 4142, vicinity <>f Kauai Island. Depth, 632 to S.'^l ; liottom, coarse manganese 

 sand, rocks: 



Protanky ra allxd ross i. 

 Station 4151, vicinity of Ilird Island. Depth, 800 to 313; bottom, fine coral sand, 

 foraminifera, stones: 

 Puiopatides retifer. 

 Station 4176, vicinity of Niihau Island. Depth, 672 to 537; bottom, gray sand, 

 mud, foraminifera: 

 Puiopatides retifer. 

 Station 41S7, vicinity of Kauai Island. De])th, 508 to 703; bottom, gray sand, 

 foraminifera: 



Pielopattde» ret Ifer. 



EXPLANATION OF TEC^HNIOAL TERMS. 



The calcareous deposits are likely to cause some trouble to the naturalist unac- 

 quainted with liolothurian anatomy, because they have been given arbitrary techni- 

 cal names. These names are listed l)elo\v, together with a number of other technical 

 terms which are not self-explanatory. 

 ambulacra, the five radii. 



anal teeth, calcareous teeth, five in numl)er, surrounding anus of Act.inopnga. 

 anchor pkd.es, the perforated, often regular plates which accompany anchors. (Plate 



LXXXI, figs, la, 2.) 

 anchors, anchor-shaped deposits of<%Hay>/a and allied genera. ( Plate LXXX, fig. It). ) 

 hntto'ns, buckle-shaped deposits often accompanying tables. (Plate T^XVII, figs. 2c, 



calcareous ring, a ring, made up of plates of lime, around the (esophagus; generally 

 ten pieces, five of which serve as points of attachment for radial muscles {q. v.) 

 and are called radial pieces or radialla, while the alternate five are termed interra- 

 dial pieces or interradi edict . (Plate LXXXII, fig. 1. ) 



Cuvierian organs, long, slender, often whitish tubes attached to proximal portion of 

 respiratory tree in a tuft or bunch. When ejected violently they serve as organs 

 of defense, being very viscid and extraordinarily extensible; present especially in 

 species of Holothuria and Actinopyga. 



digitrde, said of tentacles when the branches are few and arise from tij) so as to 

 resemble miniature fingers. (Plate LXXXI, fig. 5.) 



disk, perforated plate forming the base of a table. (Plate LXVII, fig. 2h. ) 



gonad, the ovary or testis, as the case may be. 



interamlmlacra, interradii, or the five longitudinal areas between the radii. 



interradicd 2}ieces, see calcareous ring. (Plate LXVIII, fig. 4a, ir.) 



madreporic canal, the calcareous canal connecting the ring canal of water vascular 

 system with body cavity, or with exterior in many Elpidiidte. Often numerous 

 in a single individual, frequently single. (Plate LXXX, fig. 1, m.) 



