Fig. 
PLATE UXXVIII. 
Tetragoniceps malleolus. 
. Adult female. 
. Anterior antenna, female. 
. Posterior antenna. 
. Mandible. 
. Maxilla. 
. First foot-jaw. 
. Second foot-jaw. 
. Foot of first pair. 
. Foot of third pair. 
. Foot of fourth pair. 
. Foot of fifth pair, female. 
Normanella dubia. 
. Adult female. 
. Anterior antenna, female. 
. Inner branch of lower antenna. 
. Mandible. 
. Maxilla. 
. First foot-jaw. 
. Second foot-jaw. 
. Foot of first pair. 
. Foot of second pair. 
. Foot of fifth pair, female. 
. Caudal segments. 
