1364 



CRUSTACEA. 



The articulation of the carapax with the next segment is not very 

 distinct. This second segment has a prolongation on either side, 

 which extends either side of the third segment, nearly as far as the 

 following articulation, and the posterior angles are rounded. The 

 third and fourth segments are as broad as the abdomen, and laterally 

 obtuse. The abdomen has the first segment large, about as broad as 

 long, truncate behind, with quite a small prominence either side of 

 base of last segment, and also an emargination exterior to this promi- 

 nence, and a few setae on the angle. The last segment is half the 

 breadth of the preceding, and twice as broad as long. The lamellar 

 stylets project nearly their length beyond the anus, and the three setae 

 are subequal, the inner shortest. 



The front of the carapax moves to some extent with the anterior 

 antenna?. 



The posterior antennas are quite similar to those of female Caligi. 

 No spine exterior to base was observed. 



The first pair of feet have the furcation on the third joint half 

 the length of the second and third joints together. 



The first pair of natatories are rather large, with long plumose setae 

 to each branch. The base consists of a very short first joint, and a 

 large second joint, the latter with a prolonged obtuse apex. 



Genus PANDARUS. 



Corpus antice latius. Cephalothorax i-articulatus, segmento antico (vel 

 carapace) grandi, sequentibus transversis, secundo lateribus retrorsum 

 alatd producto, tertio quartoque testd posticd expansis et bilobatis. 

 Abdomen 2-3-articulatum, segmento secundo posticd rotimdato et latere 

 stylis caudalibus munito, postico celato. Oculi duo remotiusculi. Pedes 

 natatorii octo. Pedes preliensiles paris secundi crassd cheliformes. 

 StyU caudales styliformes, acuti, fere nudi. 



Body anteriorly broadest. Cephalothorax four-jointed, anterior seg- 

 ment (or carapax) large, the following transverse, second with the 

 sides alately produced backward, third and fourth with the shell 

 expanded behind and bilobate. Abdomen two- to three-jointed, 

 second segment posteriorly rounded, and having on the sides the 

 caudal stylets, last segment concealed below the second. Eyes two, 



