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Maiacostraca marina Groenlandise occidentalis.

Maiacostraca marina Groenlandise occidentalis.

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Uropoda (fig. 3 b) minus robusta, segmentis duobus ultimis cauds<br />

nonnihil longiora; pedunculus quam segmentum ultimum caudae<br />

paulo brevior, in latere iuteriore nonnihil dilatatus, superne setis 4<br />

ornatus; ramus exterior ramo interiore tertia parte longior, ad<br />

apicem versus gracilior, in latere interiore et in apice setis circitei<br />

9 valde insequalibus instructns, setis duabus primis parvis, si lis ml<br />

apicem versus sitis longis ; ramus interior fere ut in Kud. d-form.<br />

in latere interiore spinis 9, apice spina longa et robusta et seta<br />

perlonga ornato. Long. 4,6 mm .<br />

Ma.-: adidfi's (fig. 3 c) quam femina multo gracilior. Truncus<br />

triplo longior quam altior. Scutum dorsale in cornu erectum, quam<br />

in femina brevius et prope basin multo latius, productum; tnxt&<br />

anterior scuti infra cornu nt/rpaulmn ineurvus; margo inferior aequa-<br />

liter et minus quam in femina arcuatus, edentulus; anguius mv.-i<br />

muiginom inferiorem et marginem anteriorem rotundatus. Cauda<br />

segmento sexto vix dimidio longiore quam latimv. An'<br />

nans quam in femina multo longioies, articulo tertio pedunculi ad<br />

apicem versus dilatato, flagello exteriore 4-artinilato, interiore<br />

2-articulate. Antennae secundi paris flagello corpore et uropodis<br />

junctis longitudine a3quali. Pedes quam in femina graciliora*<br />

oinnes prseter par ultimum exopodiis robustis muniti. Uropoda<br />

(fig. 3 d) longiora et graciliora ; ramus exterior sat arcuatus ,<br />

plumosis valde elongatis ornatus; ramus interior in margine inte-<br />

riore spinis plumosis - permultis instructus. Long. 4,7 mm .<br />

setis<br />

Forekomst. 68°9' N. B., 56°32' Y.L., 50 Fv., Sand, 3E*-<br />

(S. M., Exp. 1871) — Claushavn: 15—20 Fv., stenet Lerbuud. -<br />

Ex. (8. M., Exp. 1870); 280 Fv., Lerbund, 2 Ex. (S.M., Exp. 1870'<br />

— Kekertak: 35—40 Fv., Lerbund, flere hundrede Ex. (S. #*><br />

Exp. 1870); 40 Fv., Lerbund, Here Ex. (8. M., Exp. 1870).<br />

Skjont jeg havde et saa stort Materiale, har jeg, dels af<br />

llensyn til Plads, dels fordi jeg ikke tilstrsebte en Monografis L'd-<br />

ferlighed, ikke leveret detaillerede Figurer af Antenner samt ilund-<br />

og Kroplemmer bos de to Kjon.<br />

Nogen Tid efter at have udfert Afbildninger og<br />

Boskrivelse af

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