664 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxn. 



shown in the figure, which i-epresents the average. Their length is 

 about 0.15 to 0.2 nun. The terminal plates of the ventral pedicels 

 are larger (0.37 mm. in diametei-) than those of the dorsal pedicels 

 (0.24 nnn. in diameter). 



This species, which is now, I believe, for the first time recorded 

 from the Hawaiian Islands, ranges from the Red Sea and Indian 

 Ocean to the west coast of tropical America, and in the Atlantic is 

 found on the north and east coasts of South America. The following 

 are the principal stations recorded: Kosseir (Red Sea), Mauritius, 

 Zanzibar, Philippines, Bonin, and Marshall islands, Amboina, Rotti, 

 Sula Besi, Fiji and Samoan islands, Cocos Island off Central America, 

 Galapagos Archipelago, Surinam, and Bahia. The name Iloloth.uria 

 macuhifd (Brandt) is technically invalidated l>y HolotJmria maculata 

 Chamisso and Eysenhardt, 1821. 



HOLOTHURIA PARDALIS Selenka. 



Plate LXIX, tigs. 1, la-g. 



Holothvria pardalis^ Selenka, Beitrilge zvir Anatomie u. Systematik der Holo- 

 thurien, Zeitschr. f. wiss. ZooL, XVII, 1867, p. 336, pi. xix, tig. 85. 



Apparently quite a variable species. Possibly the forms here con- 

 sidered should be classed mider two species, //. pardalis and II. llneafa; 

 ))ut without authentic specimens for comparison it is impossi)>le to 

 decide. The various characters grade into one another in such a wav 

 that it would seem best to consider the Hawaiian specimens as belong- 

 ing to pardalis. Two of the specimens are quite t3'pical p((7'daUs 

 according to descriptions. 



Size medium to small; general form subcylindrical, tapering tow^ard 

 either end; mouth and anus terminal; the former surrounded by seven- 

 teen to twentv small tentacles, the latter by a crown of papilhe. Ambu- 

 lacra! appendages in the form of pedicels more or less oljviousl}' arranged 

 in five longitudinal l)ands, especially at extremities of body. In half 

 the specimens, however, this regular arrangement is not apparent or 

 at least not obvious enough to be of importance. Ventral surface not 

 clearly defined from dorsal in most specimens; the ventral pedicels 

 with larger disks than the dorsal. Body wall not particularly thick, 

 the exterior fairly smooth. Color variable; thus, a specimen, typical 

 as far as deposits are concerned, was colored in life as follows: Tenta- 

 cles light yellow; dorsal surface brownish straw color, lighter straw 

 color al)out pedicels; ventral surface without the mottled appearance, 

 lighter; along the dorsal surface are two rows of dark brown sjjots, 

 twelve to fifteen in each row. Another specimen is a rather darker 

 brownish, lighter about pedicels; no dorsal spots. Still another has 

 small dark brown spots scattered all over the body irregularly, 3'ellow 

 about ])edicels, the two rows of dorsal blotches being rather incon- 

 spicuous. Deposits: Tables with a spinous disk, usualh' somewhat 



