FROM THE FALKLAND ISLANDS. 



331 



larval stage, in which the carapace has only a length of 2 mm. 

 The generic identification may, I think, be relied on by a com- 

 parison with the description and figures which Professor G. O. 

 Sars supplies for a similar stage of Mitnida rvgosus (Firbricius) 

 in his " Bidrag til Kundskaben om Decapodernes Forvandlinger," 

 ii. p. 178, tab. 6 (Arch. Naturv., 1889). 



The figures give a dorsal view of the specimen in two divisions, 

 the line n.s. indicating the actual length of the carapace. 



Text-fio-ures 1 & 2. 



Munida gregarius, early larval stage. 



SCHIZOPODA. 



Tribe THYSAIs^OPODACEA. 

 Family TnYSANOPODiD^. 



For the classification see Ann. S. African Mus. vol. vi. pp. 395, 

 396; 1910. 



Genus Nematoscelis G. 0. Sars. 



1883. 2{emcdoscelis Sars, Vid. Selsk. Forhandl. Christian., No. 7, 

 p. 27. 



Nematoscelis rostratus Sars. 



1885. Nematoscelis rostrata Sars, Rep. Voy. 'Challenger,' vol. 

 xiii. Schiz., pp. 135, 109, pi. 25. figs. 8-10, pi. 31. 

 . figs. 23-29. 



Among numerous specimens of lai'val forms belonging to other 

 groups tliere occuri'ed a single slender form 4-5 mm. in length, 



[5] 



