196 DR. W. T. CALMAN ON THE MACRUROUS [Mar. 6, 



LiMNOCARIDINA LATIPES, sp. n. (Plate XII. figs. 23-29.) 



Description. — Body slender ; sixth somite of abdomen a little 

 longer than carapace, length two and a half times its depth. 

 Rostrum (Plate XII. fig. 23) less than one-third of length of 

 carapace, much shorter than first segment of antennulai- peduncle, 

 horizontal, teeth "" ^^ " . Antero-lateral spine of carapace set a 

 little way back from front edge. Antennular peduncle reaching 

 to external tooth of antenna! scale. Distal edge of scale (Plate 

 XII. fig. 24) projecting beyond external tooth. Third maxilliped 

 hardly extending beyond first segment of antennular peduncle, 

 terminal segment two-thirds the length of preceding segment. 

 First perasopods (Plate XII. fig. 25) hardly reaching middle of 

 penultimate segment of third maxilliped, breadth of carpus about 

 one-half of its length ; chela one and a half times as long as 

 carpus, two and a half times as long as broad, palmar portion 

 a little shorter than the fingers. Second pei-feopods (Plate XII. 

 fig. 26) reaching a little beyond first, bi'eadth of carpus less than 

 one-third of its length, chela a little longer than the carpus, four 

 times as long as broad, palmar portion a little shorter than 

 fingers. Last three pairs of perteopods stout, third pair extending 

 well beyond tip of third maxillipeds, fifth pau' hardly reaching 

 beyond base of penultimate segment of same. Mervis and carpus 

 of last thi-ee pairs each with a single spine ; dactylus very short 

 and broad, that of foui'th pair (Plate XII. fig. 27) about one 

 and a half times as long as broad, and one-fourth of length 

 of propodus, armed with nine large spines ; that of fifth pair 

 (Plate XII. fig. 28) hardly twice as long as broad, a little moi-e 

 than one-fourth of length of propodus, with ten spines. Telson 

 (Plate XII. fig. 29) little more than half the length of sixth 

 abdominal somite. Outer plate of uropods a little longer than 

 inner. 



Total length 9-7 mm. Eggs -25 x "16 mm. 



Remarks. — This small species is easily distinguished from the 

 other members of the genus by its very shoi't i-ostrum, and by 

 the short and bi'oad dactyli of the posterior pera-opods. The 

 spines of the dactyli are unusually large, and do not difier in size 

 in the two sexes. According to Dr. Cunnington's notes, the 

 colovir of this species in life was " greenish, with red and yellow 

 spots." 



Occurrence. — Mbete, 29.ix.04. " Shallow water amongst rocks." 

 Two specimens. 



Xear mouth of Lofu, 6.x. 04. " Taken on rocks, shallow water." 

 Four females and eight males. 



Kalambo, 4.xi.04. " Tow-netting, 8.20 p.m." One specimen. 



Tembwi, 2.i.05. " Taken on rocks, shallow water." Five 

 specimens 



LiMNOCARIDINA socius, sp. n. (Plate XII. figs. 30-37.) 

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



