326 Copepoda. 



segmenta vakle discreta, marglne inferiore dentibus conicis in crista prominente; 

 rostrum magnum, basi lata, paullum atteuuatum; antennae cephalothorace breviores, 

 in cS forcipatae: ahdominis segmentum ultimum penultimo longins et amplius, non 

 denticulatum; furca brevis, seta unica terminali forti, setis lateralibus pluribus, 

 dimidiis partibus ejus instar forcipis divergentibus. 



Habit.: Xizza (Claus). 



Jurinia Cls. Corims lineare; antennae I. 7-articulatae, hreves, S clielifonnes; 

 palpi nHuuUhnlarum ef maxillarum simplices; maxiUipedes inferiores rudimentares, 

 2)cdum quatuor xtarium ramns intermis hiarficulatus, externus triarticulafus. 



m 1. J. armata Cls. Corpus conspicue porrectum, paullo attenuatum retror- 

 sum, 1,05 — 1,1') mm Idugum (sine seta), segmento ultimo abdnminali acuminato; 

 margines segmentorum cephalothoracis laeves, margines ventrales segmentorum 

 abdominalium II. ad V. spiculis longis praediti; articuli furcales angusti appositi: 

 seta longa terminalis basi bulbosa vix abdominis longitudine; secunda seta mar- 

 ginis interni transverse extrorsum directa; antennae I. 7-articulatae, compactae, 

 articulus 4. in tuberculum seta olfactoria munita productus, ;'>. et 6. perbreves; 

 antennae II. spinis 6 stiliformibus terminatae, ramo secundario gracili. 



Habit.: Xizza (Claus). 



Harpacticus H. M. Edw. Antcnnae I. 8- anf 'J-arficulatae ; maxinipedcs 

 inferiorcs manu prchensili fortissima armafi ; jw/ty j;rt ;•/.■>' I. jjrchcnsiles, ramus extcrnus 

 primo cf secu)ido articnlo clongato, fertio rudimentari, ramus intcmus hrcvis hiarti- 

 culatus; palpi mandihularum et maxillarum valdc compositi. 



m 1. H. gracilis Cls. Corpus gracile, cephalothorace angustiore, sine setis 

 caudalibus circ. 0,7 mm longum; rostro usque ad medium articuli 2. antennarum 

 extenso; antennae I. !)-articulati, flagello elongato 5-articulato; maxillipedes pedun- 

 culo basin versus dilatato; ranius internus paris I. pedum uncos duos ae([uilongos, 

 externus ((natuor uncos seriatim increscentes setam(|ue cuivam gracilem gerens; 

 pedes paris V. lamina interna brevi, externa oblongo-ovali; segmenta anteriora 

 abdominalia duo vix coalita, in omnibus segmentis series spinularum, ultimum iu 

 dimidias partes laterales fissum; furca latior qnam longrior, seta interna corporis 

 longitudine, externa vix ejus longitudine. 



Habit.: Mcssina (Claus). 



2. H. nicaeensis Cls. Corpus 0,8 — 1,0 nnn longum (setis caudalilius 

 exclusis); antennae I. U-articulatae; rostrum longinsculum, varians; pedes i^aris I. 

 ramo longiore uncis simplicibus quatuor (2 longioribus, 2 brevioribus) et seta cur- 

 vata (in varietate robustiore uncis 4 aequalibus et sine seta), ramo minore in 

 articulo terminali unco valde crenato et seta s^raciliore uncinata; segmentum al)- 

 dominale pennltimum sine spiculis, segmentum ultimum et furca brevis; maxilli- 

 pedes stipite long"o biarticulato. 



Dist)'ib.: Pontus (var. fortior Cls. et pontica Czkkx.). \ 



Habit.: Nizza (Claus). 



3. H. macrodactylus Fischkh. Antennae T. 9-articulatae, tere cephalo- 

 thoracis longitndinc; stipcs ina\illii)cdum infcriorum valde elongatus: seg:menta 

 abdominalia lateribus et margine postero-inferiore seriebus spiculorum intciMuptis 

 nmnita. Long. Vs lin. . 



Distrib.: Atlanticum, Madeira. 1 



Ifabit.: ^lcssina (Gkustakckeu). 



4. H. chelifer Hairo (C/fcIops chdifcr O. F. ]\Iull.). Corpus cephalotho- 

 race satis lato. abdomine poi-recto, sine setis caudalibus ultra 1 mm longnm; 

 rostrum articnlum basalcm antcnnarum I. superans: antennae 1. 8-articulatae. arti- 



