1 94 DR. W. X. CALMAN ON THE MACRUROUS [Mar. 6, 



one-sixth of length of fingers. Shape of fingers and setfe much 

 as in L. retiarius, but the setse are shorter and are almost smooth, 

 their barbs being extremely short and inconspicuous. Third pair 

 of pei'seopods reaching beyond tip of third maxillipeds, last pair 

 distinctly shorter. Dactylus of third and fourth pairs (Plate XI. 

 fig. 12) less than half the length of the propodus, without spines, 

 except the tei-minal one which is long and slender ; that of fifth 

 pair (Plate XI. fig. 13) less than two-thirds of length of pro- 

 podus, with a terminal and a short subterminal spine. Telson 

 (Plate XI. fig. 14) a little more than half as long as sixth 

 abdominal somite. Outer plate of uropods a little longer than 

 inner. 



Total length (ovigerous $ ) 6"25-6"7 mm. Eggs "26 x "16 mm. 



Remarks. — This species, the smallest of the genus, is closely 

 allied to the preceding by the structure of the chelte. It is 

 strikingly distinguished, however, not only by the very short 

 rostrum (which, in some specimens, may be even shorter than in 

 that figured), but also by the very difierent armature of the 

 dactylus in the posterior pairs of legs. 



Occurrence. — Kasawa, tow-netting, 8.30 p.m., 7.x. 04. Many 

 specimens. Only three ovigerous females. 



Kalambo, tow-netting, 8.20 p.m., 4.xi.04. Six specimens, 

 including two ovigerous females. 



Karema, 12.xii.04. " tow-netting, surface, 8 30 p.m." Many 

 specimens. 



LiMNOCARIDINA TANGANYIKiE Caiman. 



Lininocaridina tanganyikce Caiman, Proc. Zool. Soc. 1899, p. 704, 

 pis. xxxix. & xl. figs. 1-2, 4-19. 



I have very little to add to the account which I have already 

 o-iven of this species. Some of the specimens in the present 

 collection are larger than any previously seen, reaching about 

 26 mm. in total length. The distal edge of the antennal scale 

 i-eaches beyond the external spine. There is a single spine on 

 the merus and another on the carpus of each of the last three 

 pairs of legs. The sixth abdominal somite is about equal to the 

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



Occurrence. — Kasakalawe, 4.viii.04. "Taken in rock-pool about 

 tide-mark." Two ovigerous females. 



Mtondwe Bay, 10.viii.04. " Swampy shallows." Seven speci- 

 mens, four ovigerous. 



Mtondwe Bay, Mamkolo, 13.viii.04. "Taken in shrimp-net 

 in a few feet of water." 



Kituta, 24.viii.04. " Enormous swarms were seen swimming 

 close to the surface in about 10 feet of water on a calm afternoon. 

 Colour uniform bluish-grey." Dr. Cunnington notes that these 

 specimens difiered much in colour and in general aspect from the 

 other specimens of L. tanganyikce, and he suspected that they 

 might be a distinct species, but I cannot fincl any noteworthy 

 strvictural difierences. 



