270 ]\Kssrs, J. \\^)(j(l-]\l<i.s()ii (iiid A, Alcock on 



'\ lie eoxo]K)ditc of the first maxilUe is much sliorter and 

 Avidcr than the Lasipodite ; the cndoijodite is a short, simj)le, 

 and undivided finger-shaped joint with a few setaj on its 

 outer apex, and the exo]iodite ajjpears to be represented by a 

 firmly chitinized round conchoidal plate, the convex face of 

 Avhieh is turned downwards and backwards. 



The coxo})(;dite of the second maxilla? is but little shorter 

 but much narrower than the basij)odite, not extending- nearly 

 so far towards the middle line; the basipodite is subdivided ; 

 the endopodite differs from that of the first maxillfe only in 

 being somewhat larger ; the anterior lobe of the scapho- 

 gnathite is much broader than the posterior lobe, in which the 

 apical fringe is developed into excessively long and fine setas. 



In the first maxillipedes the coxopoditic plate is rudi- 

 mentary and furnished with limp hairs, the functional jaw 

 being entirely formed by the basi])odite ; the endopodite is a 

 narrow slightly curved and knife-like pointed plate, the exo- 

 jodite is a broad and abruptly incurved falciform plate, and 

 the eijipodite is two-leaved. 



The second maxillipedes have only five distinct joints, the 

 third and fourth joints of the tyjjical nialacostracous limb being 

 indistinguishably fused together ; the first joint bears a tri- 

 angular epipodite, the second a long, tapering, undivided and 

 membranous exopodite, the third is about as long as the 

 second, but only about half its thickness, the fourth is short, 

 about half as long as the third, the fifth is broadly subtri- 

 angular and docs not enter into the formation of the functional 

 jaw, which is wholly formed by the very short and broad 

 wedge-shaped sixth joint. 



The external maxillipedes present only five distinct joints, 

 the sixth and seventh, as well as the third and fourth, joints 

 being indistinguishably i'used together. The first and second, 

 ■which are aidxylosed together, are short, stout, ar.d suboqual : 

 the first bears a small oval and subpedunculated hard process, 

 ])robably representing an epipodite ; the second, a flagellar 

 exo))cdite, similar to that of the second maxillipedes ; the 

 third joint, forming the functional jaw, is an obclavate com- 

 ])resscd schrite, and is strongly curved to the configuration of 

 the underlying ajijKndages ; its inner margin bears no fringe 

 of seta; ; tlie fourth and filth joints are slender, cylindrical, 

 and iringed with narrow, transverse, scale-like rows of setje 

 on the inner edge ; the iourth is a little shorter than the third 

 and exactly half of the fiith, which latter is almost straight, 

 and tapers beyond the middle of its length very slightly and 

 gradually to a bluntish point bearing a few stitf sctic. 



The legs of the lirt^t pair are built upon the same plan as 



