44 



K. MITSUKUßl : STUDIES OX 



Ludwig 1889—92, p. 329 ;— Ludwig 1887^ p. 1223 ;— Sluiteiî 1894, p. 

 104 ;— Lampeiit 1896, p. 59 ;— Whitelegge 1896, p. 160 ;— Ludwig 1899, p. 

 557 ;_Sluiteii 1901, p. 24. 



Adinopyga ecldnites Kent 1893, p. 236 ; — Bedfoiid 1899, pp. 835, 836. 



Specimens examined : — 



Description : — Tentacles 20. Ventrum flat ; dorsum convex, 

 transversely rugose. Calcareous deposits of branched rods (accord- 

 ing to Thj^^el, small incomplete rosettes and large simple or irreg- 

 ularly branched rods, both having dichotomous ends to the arms, 

 there being transitional forms l)etween the two). jMouth slightly 

 ventral, anus slightly dorsal. Color dark cliestnut brown on the 

 dorsum, lighter and clear chestnut color on the ventrum. 



Remarks: — The first specimen (No. 118()) seems to agree best 

 with the descriptions and figures of the species. There are two 

 kinds of calcareous bodies : (i) simple or irregularly branclied rods 

 dichotomously branching at the ends, and (ii) somewliat smaller 

 incomplete rosettes. There are, howovur, transitional forms between 

 the two. The size of the specimen when fresh, 13.5 x 0.5 cm. ; of 

 a cliestnat color, dark on the dorsal and lighter on the ventral 

 surface. Three longitudinal rows of pedicels distinguishable. 

 Dorsal papillae not many, with end-plates. The specimen was 



