24 B. IV. Kunke/, 



row, palp 2-jointed, not reaching apex of outer plate. Maxillipeds 

 with inner and outer plates long and narrow, outer fringed on distal 

 part of outer margin, palp 3-jointed, first joint not as long as second 

 and third together. 



First and second gnathopods very slender, hands simple. Pereio- 

 pods 3—5 with second joint well expanded. 



Third uropods with narrowly lanceolate rami, not extending as 

 far as others. Telson broadly incised at apex. 



The genus differs from Panoploea (G. M. Thomson) notably in 

 the fact that the outer plates of the lower lip are not incised, in 

 the shape of the second joint of the palp of the maxilliped and in 

 the simple gnathopods. 



Panoploeopsis porta sp. nov. 



Eyes circular, compound, rather small, ocelli closely crowded 

 together. 



Rostrum well developed, extending beyond first joint of peduncle 

 of first antennae ; interantennal lobes prominent, triangular. 



First antennae shorter than second, with peduncle rather more 

 than half as long as flagellum ; first joint cylindrical and longer than 

 second which in turn is longer than third joint; flagellum slender, 

 made up of about a dozen segments which are provided with nu- 

 merous threadlike setules. Second antennae much stouter than first, 

 second joint with long slender conical process on dorsal side extend- 

 ing nearly as far as distal end of third joint which is slightly longer 

 than broad ; fourth and fifth joints subequal, cylindrical ; flagellum 

 about as long as last 2 joints of peduncle together. 



Upper lip very long and slender. Mandibles elongated and slender 

 toward apex, cutting edge very long, divided into 6 very short 

 teeth, the apical one being the longest ; secondary cutting plate 

 very slender ; molar tubercle rudimentary ; palp 3-jointed, first joint 

 slightly longer than broad and with rounded process apicalh', second 

 joint long and slender, of uniform breadth throughout, third joint 

 stouter and shorter than second, with a few short setae on inner 

 margin and with outer margin slightly convex. Lower lip ver}- 

 much elongated and very narrow, with no inner plates and with 

 mandibular processes rather short and with inner margin of outer 

 plate entire. First maxillae with very slender 2-jointed palp not 

 extending as far as apex of outer plate which is rather narrow and 

 triangular with distal margin very oblique, provided with the usual 

 toothed spines; inner plate small, triangular, with setae on inner 

 margin. Second maxillae very long and slender, outer plates longer 



