ON CRUSTACEA FROM THE FALKLAND ISLANDS. 



327 



[From the PliOCBlCDINGS OF THE Z<K)LOGICA]j SoCXETi' OF LoNDON, 



1919.] 

 [Published February 1920.] 



Crustacea from the Falkland Islands collected by JVIr. Tlupert 

 Vallentin, F.L.S.— Part III. By the Rev. Thomas 

 E. R Stebbing, M.A., F.R.S., F.L.S., F.Z.S. 



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



In re-exnmining Mr. Vallentin's Malacostraca I have observed 

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

 wortliy of notice in this concluding report. 



Brachyura. 



Tribe Ctclometopa. 

 Family Atelecyclid.e. 

 Genus Peltarion Jacquinot. 

 Peltarion spinosidus (White) juv. 



Family PoKTUNiDiE. 



Larval genus Zoea Bosc. 



Tribe Oxtkehtncha. 



Larval genus Ilegalopa Leach. 



Macrura Anomala. 



Tribe Galatheidea. 

 Family Galatheid.e. 

 Genus Munida Leach. 

 Munida gregarlus (Fabricius). 



Schizopoda. 



Tribe Thysanopodacea. 



Family Thysanopodid-e. 



Genus Nematoscelis Savs. 



Nemcitosfelis rostratus Sars. 

 {Cijrtojjia stage.) 



Isopoda Anomala. 

 (or Apseudacea). 



Family Tanaid.e. 

 Genus T(uiais Audouin & M. Edwards. 

 Tdiiais nicrstraszi, sp. n. 



* For explanation 



Isopoda Genuina. 



Tribe Fi^abellifeea. 

 Family Manam. 

 Genus ^ga Leach. 

 JEga semicarinatus Miers. 



Family Sph^eomid.I!. 

 Genus Dj/namenella Hanson. 

 Dynameuella eatoni (Miers). 



Tribe Asellota. 

 Family Munnid^. 

 Genus Mntina Kroyer. 

 3Iunna autarcticus (Pt'eti'er). 



Amphipoda. 



Family Lysianassid^e. 



Genus Trj/phosites Sunt. 

 Trj/pJiosites chevreuxi Stebbing. 



Family Metopid^. 



Genus Metopoides Delia Valle. 



Metopoides paralleloeheir (Stebbing) . 



Family Pontogeneiidje. 

 Geims Paramcera Miers. 

 Paramcera austrinua (IJate). 

 of the Plates see p. .339. 



