SKANDINAVIENS AMPHIPODA GAMMARIDEA. 37 



G A M M A R I D ^. 



a) Pedcs seciindi paris tlioracis artioulis scnis compositi. 

 I/) Antenuie superiores flagello appeiidiculari prccditiC. 

 c) Caput antice non produrtura. 



it) Antenn» superiores pedunculo crasso. 



Pedes secundi paris thoracis raanu nulla subchelifonni Stegocephalus. 



(Epiincra märg. inf. setis destituta Anonyx. 

 Pedes sec. paris thoracis manu prtediti subcheliformi J 



(Epiracra märg. inf. setis ornata . Poxtopokeia. 

 dd) Antennne superiores pedunculo gracili. 



/Art. cpiartus ped. f Mandibuhe intcr se similes Gammarus. 



i sec. paris cxtremi- J ( Art. quinto ped. primi secun- 



Eami pedum abdominis ultiini itati superiori art. i Mandibid.ie] dique paris manum forraante XicrppE. 

 paris segmentis quatuor ulti-/quinti affixus. [ dissirailes. j Art. quarto pcd. primi secun- 

 mis conjunctis brcviores. j ( dique paris manum forraante Pard.vxisca. 



[Art. quartus ped. secundi 



'paris racdio margini antico articuli quinti affixus .... EusiRUS. 

 Ilamus alter pedum abdominis 

 ultimi paris segmentis quatuor ultimis conjunctis longior et biarticulatus Eriofis. 



oc) Capiit antice prod\ictuni et antennas superiores magis minusve tegens Phoxus. 



bb) Antenn.ie superiores flagello appendiculari carentes. 



iPalp. ped. max. ex art. quatuor Par.\mphithoe. 

 Palp. ped. max. ex art. qiiinis Leucotuoe. 

 Mandibuloe palpis destitutoe Dexajiine. 



uuu \ ( cheliformi Iphijiedia. 



compositi. 1 [ Ped. sec. paris art. quinto 



I Pedes secundi paris manu subcheli-1 manum parvam formante . Lapiiystius. 

 \ formi carentes. j Ped. sec. paris manu plane 



( destituti Acantiionotus. 



<Oculi duo Haploops. 



Oculi duo aut quatuor simplices < 



(Oculi quatuor Ampelisca. 



Pedes septimi paris reliquis duplo saltem longiores Oedicerus. 



aa) Pedes secundi paris thoracis e qvinis tantum articulis compositi Bathyporeia. 



