NO. 1555. HAWAIIAN HOLOTHURIANS— FISHER. 651 



hh. Tables and buttons. 



c. Buttons smooth, without knoljs, granulations, or elevations on surface. 



d. Buttons irregular, and occasionally more ()r less incomplete, often reduced 

 to rods resembling central shaft of buttons. 

 e. Tentacles 20. Tables Avith one cross-beam to spire. 

 /. Buttons never complete; really flat rods irregular or deeply incised on 



sides; disk of table with smooth margin perncux. 



ff. INIost of buttons complete, many fairly regular. Disk of table Avith 

 spinous rim. 

 g. Buttons accumulated in rings in integument, two rows of dark spots 



along dorsal surface pardalh. 



gg. Buttons st-attered. Reddish brown to jiurplish brown, unspotted. 



fuMO-ruhra. 

 ee. Tentacles 30. Tal)les with one to three cross-beams to spire. 



haiDai'iensis. 



(id. Buttons regular. 



e. Tables with four uprights and one beam to spire. 

 /. Disks of tables with smooth or undulating but not spinous margin. 

 g. Crown of spire ending in eight to ten teeth. I'edicels only. 



/(. Calcareous ring very small, with ten small, brown, round pieces. 



Jill III ili.'i. 



hh. Calcareous ring of usual shape ntgabunda. 



gg. Crown of spire ending in more than ten teeth. 



/(. Pedicels and papilhe arranged in series. Crown of spire ending in 



usually more than ten and less than twenty teeth viunacarid. 



hh. Pedicels alone; arranged more or less in series. Spires terminat- 

 ing in move than twenty teeth. Two rows of dark reddish 



brown spots on back, in contrast to light skin arenkola 



ff. Disks of tables spinous on margin. 



g. Buttons partly irregular, accumulated in rings pardalis. 



gg. Buttons all regular. 



h. Only pedicels (a few tables with spinous disk) ragabunda. 



hh. Only papilbe verrucosa. 



ee. Many of tallies with two cross-l)eams to si>ire. Buttons very regular. 



Only pedicel-like papillrt" impatient. 



cc. Buttons with granulations, knol)S, or elevations on surface; not smooth. 

 Disk of tal)les more or less spinous on margin. 

 d. Buttons all complete. 



e. No supporting rods to pedicels, which are all over body. The solid tables 

 with twelve spines on margin. Buttons uneven with flattened eleva- 

 tions on surface, margin deeply undulated iuhabiUs. 



ee. PapilUe on dorsal surfat'e, pedicels on ventral, both with large smooth 



supporting rods having spinous edge. Tables of two kinds. Buttons 



variable in size, covered with numerous granulations. . ...Atwo-oZ«i«r(«. 



dd. A few buttons with comparatively few knobs along edge and central shaft; 



the rest in form of knol)l)y incomplete buttons, A\arty rods, or even 



small +-shaped rods with ends very knobby anulifera. 



