668 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxii. 



almost invariably six holes. Slightly curved supporting rods, dilated 

 at the middle and perforated at the ends and in the middle, are present 

 in the papillte. Often the rods have two or three short branches in 

 the middle, or the branches may meet, enclosing a hole. Frequently 

 the tips are not perforated. 



*HOLOTHURIA VERRUCOSA Selenka. 



Holothuria verrucosa Selenka, Beitrage zui- Anatoiuie u. Systematik der Holo- 

 thurien, Zeitschr. f. wiss. ZooL, XVII, 1867, p. 338, pi. xix, %. 19. 



Tentacles 20. Papillte uniformly distributed. Deposits: Tables and 

 buttons. Tables very solid, the disk with spin}^ rim. Spire with four 

 upright rods and one crossbeam. Buttons smooth with- scalloped 

 margin. Papillse with numerous spinous or perforated plate-like rods. 

 Polian vesicles, two; one bunch of small madreporic bodies; tentacle 

 ampuUfB large. Skin rough. Black, the papillte bright brown. 

 Length, 180 mm. Lampert found the calcareous ring to be very small. 



Not taken by Alhatross expedition. Recorded also from Zanzibar 

 and Indian Ocean. Sluiter records a specimen from Rotti." 



HOLOTHURIA HAWAIIENSIS, new species. 

 Plate LXVIII, ligs. 4, Au-(i. 



Size small; general form sul)C3'lindrical but flattened ventrally, well 

 arched dorsally. Mouth directed somewhat ventrally; anus terminal. 

 Tentacles 30, crowded, not very large. No evident circumtentacular 

 collar. Ventral surface with not lumierous, rather large pedicels more 

 or less evidently arranged in three series. Dorsal surface with scat- 

 tered papilla?, less numerous than the pedicels but of about the same 

 size. Body wall rather thin, minutel}' roughened. Deposits: Tables 

 and rather irregular buttons, with well developed and numerous sup- 

 porting rods in the am])ulacral appendages. Tables of two or three 

 kinds: (1) Disk with a smooth undulating or irregular margin, with a 

 large central hole and with eight to ten slightly smaller peripheral 

 ones; spire made up of four rods and two or three cross1)eanis, the 

 crown ending in twelve to sixteen teeth, sometimes irregular, with 

 less. (2) Much smaller tables with usually an annular disk with a 

 large central hole, and one at base of each spire support; sometimes 

 with more; spire with only one crossbeam, the crown either truncate 

 or pointed, irregular, ending in numerous teeth. Buttons accumulated 

 in small rings or circles, or circular groups, and in larger rings about 

 the base of ambulacral appendages; more or less irregular or some- 

 times slightly twisted, or one-sided, frequently fairly regular; holes 

 vary from four to sixteen, average eight to fourteen; incomplete 

 buttons are common. Color, ground tint light olive brown more or 



« Siboga Holothurioidea, p. 13. 



