ArTixoroT^ors holothttjoidea. 87 



(Théel '8G); Gakpao-os (Théel '86, Claek : 02) ; Pjiuamu (Selenka 'G7) ; 

 Surinam (Ludwig 74) ; Tortngas, Florida (Selenka '(]7) ; St. Bartliolonu'Av 

 (Théel '86) ; Pauiuotn ; Liu-Kin Is. 



23. HolotJiuria isin/a^ s]). u. 

 ^xtfio-. 18). 



Specimens examined : — ^Tliree individuals from ('In'nonziki, Okinawa T. 

 (Sei. Coll., Spec. No. 1188, a, b, c.) taken for me at three fathoms' deptli 

 l)y divers under the direeticm of Nablsa, an enthusiastic native collector, 

 during my trip to OkinaAva in the spring of 1901. 



Description. — Specimens very deep purple to almost black 

 except the rather narrow brownish streak in the dorsal median 

 line. Similar color aronnd the anus and, in two specimens at 

 least, in some parts of the ventrum (probably due to discolora- 

 tion in alcohol). Pedicels all over tlie body, on the dorsum as 

 well as on the ventrum, and on ambulacra as well as on inter- 

 ambulacra, except in the dorsal median browu streak, which is 

 very conspicuous even in Hfe and has long papilla? of the same 

 color. Five groups of several papilla} ai'ound the anus. Pedicels 

 wliite-tipped in fresh state. Polian vesicle single, long. Stone- 

 canal single, free, dorsal. 



In fresh condition one foot or more in lengtli. In alcohol, 

 highly contracted: three specimens measure 11x7, 10x7.5, and 

 9x6.5 cm. respectively. 



Calcareous deposits are tallies and buttons (textfig. 18 a — ;/'). 

 In one specimen, many of the tables consist simply of disks, 

 irregular in shape, with uneven and spinous margin ; the spire 

 represented ]jy short simple knobs. The two other specimens 

 show a more or less partly formed spire to the tables, and 



