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Pandalus borealis Kr. 



Corpus elongatius compressiusque. Rostrum fronlalc parum re- 

 curvum, infraquc ad basin parum modo dilatatum, apice acutissimo 

 non emarginato, dentibus fnarginis supcrioris 13 — 17 a i qvalitcr fermc 

 distribulis, dentibus marginis inferioris 5 — 8 minutis. Oculi pe'r- 

 magni, depressiusculi, transversaliter elliptici. Annulus abdominis ter- 

 tius duobus armalus aculeis dorsalibus (altero post mediam annuli 

 longiludinem retro prominente, altero ex margine posteriori); annulus 

 qvartus unico instructus aculeo marginis posterioris; annulus sextus 

 elongatus, gracilisque; appendix caudalis oeto vel novem vulgo armata 

 paribus acuieorum marginalibus. Ramus mandibular anterior dentibus 

 sex. Pes secundi paris dexter cephalothorace, sinister abdomine multo 

 brevior. 



Pandalus annulicornis Leaeb. 



Corpus crassius robusliusque. Rostrum frontale recurvum, infra 

 ad basin valde dilatatum, apice emarginstum , dentibus marginis su- 



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