ACTINOrODOUS HOLOTHURIOIDEA. 3 



Family I. HOLOTHURIIDAE. 

 Subfamily 1. Synallactinae. 



Genus Pseudostichopus Thkel 1880. 



Tentacles 20 ( — 19). No tentacular ampullae. Stone-canal 

 attached to the body wall. Ambulacral appendages in the form 

 of pedicels, extremely small, difficult to detect and arranged in 

 more or less distinct longitudinal series. Genital tubes in two 

 bundles (one right and the other left). Anus lodged in a vertical 

 furrow, without calcareous tooth. Calcareous deposits in the skin 

 rarely present, and then only sparsely ; oftener entirely wanting. 

 The body generally covered with foreign substances like sand 

 grains, sponge spicules, foraminiferan shells etc. 



1. Pseitdostichoints travhus Ri.urrEi!. 



(PI. I., figs. 1—5; textfig. 1). 



Pseu'losiichopm tracMis Si.uiter 1901r/, p. 15. — ^Sluiteu 1901/), 

 Taf. v., Fig. 1 ; Tuf. YIIl., Fig, 8.— Perkier 1902, p. 3b7— 8. 



Specimens examined : — 



• I hiro^ca. 4 7 ft. 



