ACÏINOi'ODOLS HOLOTHUKIOIDEA. loi 



,,Dic Kalkkörper zeigen alle Uebergänge zwischen den von Selenka 

 abgebildeten und denjenigen, welche ich früher von der von mir 

 aufgestellten Art //. depressa gab" (Ludwig 1883, j). 173). „Die 

 Tentakelscheiben und der Kalkring sind von mittlerer Grösse ; die 

 Interradialia des letzteren so breit als die lîadialia hoch sind. 

 Tentakelampullen klein. CuviEE'sche Organe braun, blinddarm- 

 förmig. Kloake im Innern nicht pigmentirt" (Selenka p. 327). 

 Polian vesicle single, 3 cm. long ; the single dorsal stone -canal 

 free in the body-cavity and 1 cm. long. 



Remarks : — The distinction between the dorsal and the ventral 

 surfaces is marked in all the specimens. The ventrum is in all 

 crowded with numerous pedicels and is, except in the Ogasawara speci- 

 mens of an ashen-white color. In the Ogasawara specimens, which 

 are all young, being 4.5 — 7 cm. long, the coloring of the whole body 

 is considerably darker and the ventrum shares in the deep shad- 

 ing, resembling, I imagine, the Lucipara specimen which Sluitee 

 studied. The dorsum has fewer papillœ, is of a more or less 

 brown color, and differs considerably in coloration in different 

 specimens ; but 1 believe the last fact is due in a large degree to 

 the state of preservation rather than to original differences 

 in the specimens themselves. The specimen from Kagoshima (No. 

 1031), which is at present 13 cm. long, has the dorsum uniform- 

 ly light bi'own with darker brown spots marking the posi- 

 tion of the contracted papillas. There is a suggestion of a median 

 lonuritudinal darker band of no definite breadth. This seems to 

 correspond best with Selenka's original description. In the speci- 

 men from Aburatsubo (No. 1055, at present 12 cm. long, in life 

 18 — 20 cm.), of which a rough sketch made from life by my as- 

 sistant, Mr. TsucniDA, remains, the dorsum has a light brown 

 ground color. On this, a not sharply marked longitudinal median 



