PHYLLOPODES CONCHOSTRACÉS 129 
« The male shell stightiv narrower than the female (fig. 22, 
a, S 9), the dorsal edge posterior to the beak straighter, and 
forming an angle with the posterior curvature of the shell. The 
dextro-sinistral diameter of the shell slightiy less than in the 
female. » 
« Maze. Head not wery large (fig. 22, c). The first antennae 
reaching nearly to the sixth Joints of the flagellum of the second ; 
Fig. 22, — Caenestheriella gifuensis (Ish.) (Sec. C. Ishikawa). — a, © © concha à 
latere ; b, © caput a latere; ce, © caput a latere: d, O' pars apicalis pedum primi 
paris ;e, © telsonum et segmenta aliquot antecedentia: /, © telsonum et segmenta 
aliquot antecedentia. 
sense papilla very distinct and well formed. The second anten- 
nae rather small, the upper flagellum with seventeen, and the 
lower flagellum with eighteen joints the upper sid of al the 
joints with three to four strong setae. Twenty-four pairs of ap- 
pendages. The first {wo pairs of legs similarlv formed, the gill 
of the second being only à little larger. The first endite with two 
strong spines on the tip, one of which being provided with five 
or six strong teeth; the second nearly {wice as large as the third. 
The palm of the hand higher than broad, the fourth endite 
broad with numerous blunt spines, the papilliform appendage 
much broader than in that of the second pair of appendage and 
provided also with more spines. Two feathered setae arise 
from the fourth endite not far from the base of the papiliform 
appendage (fig. 22, d). The fifth endite is also a little broader 
