126 
Clavella sciatherica n. sj). 
C. sciatherica 
C. uncinata 
C. irina 
2nd maxillae 
Not in line with the 
cephalothorax 
In line with the eephalo- 
thorax 
Not in line with 
cephalothorax 
the 
Genital process 
Large 
Present, minute 
Trilobate 
Ovisacs 
Long and slender, but do 
not taper. Twice the 
length of the trunk 
Tapering, from one to 
two and a half times 
as long as the trunk 
As long as the trunk, 
tapering 
Ova: about 8 rows of 22 
-24 in a row 
Ova: 10 or 12 rows of 15 
to 35 in a row 
Ova: 6 rows of 40 
row 
in a 
Male. Dorsum boldly arched, but bulging somewhat posteriorly. Rostrum 
minute. Mouth cone unusually long. Mediative process present forming a 
carina between the 2nd maxillae and maxillipedes, in a more posterior position 
than in other species. 
The males are not in a sufficiently good state of preservation for any 
details of their reproductive system or internal economy to be made out. 
My best thanks are due to Miss E. 0. Humphreys for her kind assistance 
with the figures. 
