246 CRUSTACEA ISOPODA OF THE 'POECUPINE' EXPEDITION. 



PLATE XXVI. 



Thambema amicorum. 



n.s. Line indicating natural size of the specimens figured below 

 in lateral view, one specimen entire, the other in two 

 parts, the hinder portion exposing more of the ventral 

 surface. 

 U.S., a.i. The first antenna and part of the second. 

 I.S., l.i. The upper and lower lips. 

 m.,m.,mx.l,mx.2,mx]i. The two mandibles, the first and second maxilte, and the 

 maxillipeds. 

 gn. 1, gn. 2, prj). 1. The first and second gnathopods and the first perseopod. 

 pips. 1, 2, 3, 4.. The plecpods, with higher magnification of the apical portion 

 of the first ; otherwise all the figures of separate organs 

 are on a uniform scale. 

 CD. Dorsal view of the head, with the right first and second 

 antennae in position, and terminal joint of each mandibular 

 palp. This and the following figure from a drawing made 

 several years ago ; the specimen now lost. 

 PL Dorsal view of the pleon. 



