ON CRUSTACEA FROM THE FALKLAND ISLANDS. 



327 



20. Crustacea from the Falkland Islands collected by 

 Mr. Rupert Vallentin, F.L.S.— Part III. By tiie 

 Rev. Thomas R. R. Stebbing, M.A., F.R.S., F.L.S., 

 F.Z.S. 



[Received June 13, 1919 : Read June 17, 1919.] 

 (Plates I.-V. * and Text-figures 1-8.) 



In re-examining Mr. Vallentin's Malaeostraca I liave observed 

 some forms, chiefly specimens of very small size, which seem 

 worthy of notice in this concluding report. 



Br achy ur a. 



Tribe C x c l o m e t o p a. 

 Familj' AxELECTCLiD-i;. 

 (Teuiis FeltarioH Jacquiiiot. 

 Feltco'ion spi7wsiihis (White) juv. 



Family Poetunid.i;. 



Lnrval geuus Zoea Bosc. 



Tribe OxmEHrxc ha. 



Larval genus Ilegalopa Leach. 



Macrura Anomala. 



Tribe Galathbidea. 

 Familj' Galatiieidji;. 

 (renus Munlda Leach. 



Jfiuudrt ffreffarius (Fabricius). 



Schizopoda. 



Tribe T n x s a n o p o D a c E a. 



Family' Thxsanopodid.i. 



Genus Nematoscelis Sars. 



Nematoscelis rostratws Sars. 

 {Cyrtopia stage.) 



Isopoda Anomala. 

 (or Apseudacea). 



Family Tanaidje. 

 Oenns Tanais Audonin & M. Edwards. 

 Tanais nierstraszi, sp. n. 



Isopoda Genuina. 



Tribe Flabellifeea. 

 Family MaiDm. 

 Genus 2Ega Leach. 

 JE(/a semicarinatus Miers. 



Family Sph^romidj!;. 

 Genus Di/namenella Hanson, 

 Dj/iiamenella eatoni (Miers). 



Tribe Asellota. 

 Family Muxnidji;. 

 Genus Iliouia Kroyer. 

 Manna antarcticus (Pfoffer). 



Amphipoda. 



Family Lxsianassid^. 



Genus Trypliosites Sars. 

 Tri/pliosifes chevreuxi Stebbing-. 



Family Metopidje. 

 Genus Metopoides Delia Valle. 



Metopoides paralleloclieir (Stebbing-) . 



Family Pontogeneiidje. 

 Genus Farammra Miers. 

 Pavamoera mistrinus (Bate). 



* For explanation of the Plates see p. 339. 



