AtTTNOrODOTS llOLOTIirTiTOTOEA. 79 



Eemarhs : — Coloring very cliaractcristic in fresh state. It is 

 violot-blaek on tlio dorsuin and briglit red on tlie ventrnm. 

 Pedicels and papilhe in a somewhat contracted state appear 

 black. In alcoliol, the dorsum is violet-black, while the sides 

 and ventrnm are light grey with a tinge of red in some parts. 



In fresh condition, the three specimens fi'om Sokari measured 

 respectively : 



Length in cm. 27 25 215 



Circumference in cm. 12 8 8 



In alcohol the above specimens have contracted to 13, 12, 

 and 8.5 cm. in length respectively. A large preserved si)eeimen 

 from Satsukawa measures 1 H cm. 



Dorsal papilla^ are black, minute, less numerous tlian the 

 ventral pedicels. The latter appear us dark dots on the light 

 grey surface. On most specimens these are most numerous on 

 each side of the ventral median lin(% which, together witli a 

 lateral line on each side, has hardly a single pedicel. 



Polian vesicl(>s 2 — 3, to the left of the dorsal mesentery. 

 Stone-canals minute and in a bundle of — 7 on each side of the 

 dorsal mesentery. 



Calcareous deposits are of two kinds — tables and buttons. 

 Tables are of a pecnliar shape. There is hnrdly any disk de- 

 veloped. The spire, which is tolerably higli and has one cross- 

 piece, ends in a crown which is largei' tlian the other end. 

 Each of tlie four corners of the square crown has gonei'ally three 

 or more teeth, pointing as the three dimensions of sjiace. ORon five 

 ])illars are present in the spire. l)Uttons ai'e small. Tlicie nre 

 some which approach regular buttons, but most of tlicm are 

 simple lozenge -shaped pieces with four ojicnings, of whicli two 

 are largo and two are small. Tlicro arc m;iiiy imperfect buttons. 



