1906.] CRUSTACEA OF THE THIRD TANGANYIKA EXPEDITION. 197 



two-thirds of length of carapace, length about one and a half 

 times its depth. Rostrum (Plate XII. fig. 30) a little longer than 

 antennular peduncle, equal to or a little shorter than carapace, 

 nearly horizontal, teeth "'* ^^l"'"' , those of dorsal edge rather long 

 and slender, unarmed above for less than one-third of its length. 

 Antero-lateral spine of carapace set close to front edge. Anten- 

 nular peduncle distinctly shorter than antennal scale. Distal 

 edge of scale (Plate XII. fig. 31) not projecting as far as the long 

 external tooth. Third maxillipeds extending to end of second 

 segment of antennular peduncle, terminal segment shorter than 

 preceding. First perteopods (Plate XII. fig. 32) short and rather 

 stout, not extending beyond middle of first segment of antennular 

 peduncle, breadth of carpus about three-fifths of its length ; chela 

 about one and a half times as long as the carpus, about two and a 

 half times as long as broad, palmar portion one and a half times 

 as long as the fingers. Second peraeopods (Plate XII. fig. 33) 

 hardly reaching to end of first segment of antennular peduncle, 

 breadth of carpus less than one-quarter of its length ; chela little 

 longer than carpus, more than four times as long as broad, palmar 

 portion about equal to fingers. Third perfeopods reaching beyond, 

 fifth pair falling considerably short of tip of third maxillipeds. 

 Merus and carpus of last three pairs each with a single spine ; 

 dactylus a little less than one-quarter of length of propodus, that 

 of fourth (Plate XII. fig. 34) with seven, that of fifth (Plate XII. 

 fig. 36) with thirteen spines. Telson (Plate XII. fig. 37) a little 

 shorter than sixth abdominal somite. Outer plate of uropods 

 shorter than inner. 



Total length 12 mm. Eggs "26 X "17 mm. 



Remarks. — This species was twice found in company with 

 L. spinijyes, which it resembles in the rather short stout body, in 

 the position of the antero-lateral spine close to the front edge of 

 the carapace, and in having the outer plate of the uropods shorter 

 than the inner. It difiers in the shorter rostrum, in the short 

 fingers of the first chel?e, and in the presence of only one spine on 

 the merus of the posterior legs. In the male, the spines on the 

 dactyli of the third and fourth peraeopods are somewhat stronger 

 than in the female (Plate XII. fig. 35). 



Occurrence. — l^iamkolo Harbour, 7.ix.04. " Dredged in about 

 3 fathoms among shells." Many specimens. 



Utinta, 5.xii.04. " Dredged in about 1 fathoms among shells." 

 One specimen. 



Kirando, l.xii.04. " Taken in about 8 fathoms of water, 

 among shells." One specimen. 



LiMNOCARiDiNA spiNiPES, sp. n. (Plate XIII. figs. 38-44.) 



Description. — Body stout ; sixth somite of abdomen less than 

 two-thirds of length of carapace, length about one and a half 

 times its depth. Rosti-um (Plate XIII. fig. 38) reaching to end 

 of second segment of antennular peduncle, one-half to nearly two 



14* 



