106 THE APODOUS HOLOTHUEIANS 



Peotankyea INSOLENS. 

 Plate V, Fig. 32. " 



liynapta insolens Tlieel, 1886a. p. 13. Calcaremis particles, pi. i. fig. 3. 

 Protanl-ijra insolens Ostergren, 1898&. 



Length. — 40-110 nun. 



CoLOE. — Yellowish white. 



Distbibutiox. — Reported from Torres Strait, 51 m. (Theel), and from near 

 the Aru Islands, 57 m. (Sluiter). 



Remaeks. — This "Challenger" species was found again by the "Siboga," 

 and may be easily recognized by the anchors, which are 600-650 jn long 

 and nearly 500 /«. broad, with 12-18 teeth on each arm; the broadly oval plates 

 with numerous dentate holes are also characteristic. There are five polian 

 vessels and a single stone-canal. 



Peotankyea benedeni. 



Synapta henedeni Ludwig, ISSla, p. 55. Calcareous particles, pi. iii, figs. 19-20. 

 Protanl-yra henedeni Ostergren, 18986. 



Length. — 22-35 mm.; diameter about one-fourth as much; obviously the 

 specimens were greatly contracted. 



CoLOE. — Whitish. 



DisTEiBUTioN. — Reported only from coast of Brazil (Ludwig). 



Remaeks. — Ludwig says that the whole appearance of this Syiiaptid is like 

 that of Labidoplax digitata, but the anchors and plates are so obviously differ- 

 ent there is no doubt of the distinctness of the two species. The miliary gran- 

 ules are minute rods, rounded at the ends and constricted at the middle. There 

 are six polian vessels and one stone-canal. 



Peotankyea eodea. 



Plate V, Fig. 33. 



Synapta rodca Sluiter, 1890, p. 108. Calcareous particles, pi. i. figs. 10-14. 

 Protanl-yra rodea Ostergren, 1898&. 



Length. — Up to 250 mm. 



CoLOE. — Carmine red. 



DisTEiBUTioN. — Reported from Bay of Batavia; Lombok; Timor; and near 

 Madura, D. E. I., 330 m. (Sluiter). 



Remaeks. — The huge anchors and plates, the minute miliary granules, and 

 the conspicuous color make this species a notable one. There are two polian 

 vessels. In his original description Sluiter says the calcareous ring consists 

 of 17 pieces ; it would be interesting to know whether further observations con- 

 firm this peculiar number. This species lives in mud near the coral reefs. 



