584 CRUSTACEA. 



pair. Six posterior legs twice stouter than in the tenuipes. Mandible 

 with terminal process tridentate, lateral process somewhat molar-like, 

 with three or more prominences. Palpus of outer maxillipeds con- 

 siderably longer than second joint of these organs. 



Genus PALiEMON (Fabricius). 

 1. Garapax margine antico infra ocuhim sjrinis duabus armatus. 



Pal^emon affinis, Edwards. 



Plate 38, fig. 5 a, animal, natural size ; b, outline of beak and 

 cephalothorax ; c, view of base of inner antennae; d, mandible; e, 

 inner maxillae; /, second maxilliped ; g, outer maxilliped. 



New Zealand. 



Beak a little longer than scale of outer antennae, seven-toothed 

 above and four-toothed below, a little recurved, bifid at apex, second of 

 the teeth below (counting from apex) directly beneath the first of 

 those above, and last of those above near middle of back of cephalo- 

 thorax. Hands all very slender ; first pair not half length of carpus ; 

 second pair considerably longer than carpus, fingers much less than 

 half the length of the hand, a little short hairy within. Following 

 legs very slender, unarmed and naked, except a few hairs at tips of 

 joints, and for a short distance at lower apex of penult joint two fla- 

 gella, inner antennae united to eighth or ninth joint, tooth of first 

 basal joint extends very nearly to apex of second basal joint. Outer 

 maxilliped short, about reaching to apex of base of outer antenna'. 

 Extremity of abdomen very narrow, having three minute spinules, 

 and between them, two longish setae. Length, two inches. Nearly 

 pellucid, with some bright green lines of extreme delicacy along the 

 cephalothorax and abdomen; four posterior legs with two red spots, 

 one at either extremity of the femur; second pair, with three red 

 spots, one in the hand at the base of the fingers. 



Although very near the R squitta, the coalesced flagella of the inner 

 antennae are united to a longer distance from the base of these organs; 



