LEKNANTHROPUS KROYEEI. Ill 



Female. — The body, which is oblong in shape, some- 

 what flattened and rather wider towards the posterior 

 end, and divided into three unequal, but moderately 

 distinct, portions ; the head, which is the shortest, 

 equal to about one-fourth of the entire length of the 

 animal, exclusive of the posterior appendages, widest 

 behind and tapering slightly on each side forwards to 

 the flatly-rounded forehead ; the next two segments 

 larger and subquadriform, but the last segment about 

 a third longer than the middle one. The genital 

 segment and abdomen, which are small, entirely con- 

 cealed in dorsal view ; caudal rami moderately stout 

 and elongated. 



Antennules moderately short and composed of seven 

 joints, basal joint robust, the others small ; a slender 

 two- or three-jointed appendage springing from near, 

 but a little behind, the base of each of the antennules, 

 and reaching to fully beyond their apex. Antennas 

 short, robust, and furnished with short but strong 

 terminal claws ; mandibles and maxillaa slender ; 

 maxillipeds short, stout, and strongly uncinate. 

 Thoracic legs biramose ; first and second pairs very 

 small and rudimentary, the inner ramus uniarticulate 

 and rather more robust than the outer, which consists 

 of one or two small joints. 



Other appendages occur on the ventral aspect which 

 are referred to by Steenstrup and Liitken and others 

 as the third and fourth pairs of legs. The third pair 

 consist each, of a one-jointed linguliform appendage 

 which reaches to near the base of the next pair ; the 

 fourth pair have each two branches; they form elon- 

 gated one-jointed appendages which reach backwards 

 considerably beyond the posterior end of the body; 

 they are nearly of equal length, and taper towards the 

 Mimt-pointed extremity. 



Colour dark red. Length about 21 mm. 



Male. — The male, which is only about half the size 

 of the female, has a general resemblance to it, but the 

 head is proportionally larger, the dorsal shield . is 



