ACTINOPODOUS HOLOTllüKIOIDEA. 43 



Subfamily 2. Holothuriinae. 

 Genus Mülleria Jaeger 1833. 



Tentacles 20, sometimes more. Yentrum flat, dorsum arched. 

 Ambulacral appendages in the shape of pedicels on the ven- 

 trum and of papillae on the dorsum ; their arrangement in 

 longitudinal series seldom visible. A single genital bundle on the 

 left side of the dorsal mesentery. No C-shaped deposits in the 

 perisome. Anus surrounded by live calcareous teeth. 



Within the limits of the Japanese empire, the species of the 

 genus are confined to the subtropical region, viz., to the Liu-Kiu 

 and the Ogasawara (Benin) Islands. 



The five species found within the limits of the empire may 

 be distinguished as follows : — 



I. Tentacles 25 mauritiamu 



II. Tentacles 20. x4mong calcareous deposits there are : 



1. Hollow ellipsoids inacukda. 



2. Bather plump rosettes ccJiiniks. 



3. X-shaped rods and rosettes. 



a. Ventruni white, and its continuation forms a _ 



light gray area romid the anus lecanora. 



h. Dorsum and the area around the anus uniform 



in color miliaris. 



11. JlitUeria echinites Jaegee. 



JMlcrîa echinites JaeCxEK 1833, p. 17, Taf. III. , Figs. 3,6 ;— Selexka 

 1867, p. 312;— SEMrEit 1867—68, pp. 76, 276, Taf. XXX., Fig. 8 ;— 

 Ludwig 1882, p. 131 ;— Lampekt 1885, p. 99 ;— Tiiéel 1886 a, p. 201 ;— 



