202 GAMMA RIDJE. 



AMP HIP DA . PH OXIDES. 



NIT ATOM A. 



Genus LILJEBORGIA. 



Liljeborgia. Spence Bate, Cat. Ampli. Crust. Brit. Mus. p 118. 



Generic character. Cephalon but slightly produced ante- 

 riorly. Superior antenna? furnished with a secondary appen- 

 dage. Gnathopoda large, subchelate, second larger than the 

 first, inferior carpal angle anteriorly produced. Posterior pair 

 of pleopoda biramous. Telson cleft. 



The head is not anteriorly produced to half the length 

 of the first joint of the superior antennae. The seg- 

 ments of the body are nearly as long* as those of the 

 tail. The eyes are large. The superior antennae shorter 

 than the inferior, and furnished with a secondary ap- 

 pendage. The first two pairs of legs have the hands 

 largely developed, the second being the larger, and the 

 inferior angle of the wrist is produced to a short dis- 

 tance along the inferior margin of the hand. The other 

 legs are tolerably free from hairs, and have the fingers 

 very straight. The last pair of caudal appendages have 

 two branches, and the central tail-piece consists of a 

 single plate, which is cleft at its apex. 



This genus is named in compliment to the distin- 

 guished zoologist of the University of Upsala, Professor 

 Liljeborg. 



* The length of a segment is measured in the same direction as that of 

 the body of the animal ; the breadth is when it is measured from side to 

 side. 



