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Beskrivelse af Slægter og Arter.
Description of Genera and Species.
Fam. 1. Pycnogonidæ.
Familiecharacter. Saxlemmer og Folere manglende
hos begge Kjøn i fuldt udvoxet Tilstand. Falske Fodder
kun tilstede hos Hannen.
Bemærkninger. Til denne Familie regner jeg kun
2 bekjendte Slægter, nemlig Pycnogonum og Phoxichüus,
der begge stemmer overens i ovenstaaende Characterer, om
de end i andre Henseender viser ikke ubetydelige
Forskjelligheder. Slægterne Hemitonia Hoek og Bhynchothorax
Costa, som af andre Forskere henregnes til denne Familie,
tror jeg rettest bør indordnes under 2 andre Familier, den
første under Familien PaUenidæ, den sidste under Familien
Pasithoidæ.
Fam. 1. Pycnogonidæ.
Family Character. — Chelifori and palpi wanting
in adults of both sexes. False legs present only in male.
Remarks. — As of this family I class but 2 known
genera, viz., Pycnogonum and Phoxichüus, both agreeing in
the fore-mentioned characters, though in other respects
exhibiting by no means inconsiderable points of difference.
The genera Harmonia Hoek and Bhynchothorax Costa,
which other naturalists refer to this family, should, in niv
judgment, rather be placed under 2 different families, the
former under the family PaUenidæ and the latter under
the family Pasithoidæ.
Gen. Pycnogonum, Brunnich (17(S4).
Slægtscharaeter. Legemet undersætsigt bygget, med
haarde, knudrede Integumenter, kun svagt haarbesat.
Snabelen mere eller mindre lige fortilstrakt, glat. Øieknuden
stump. De falske Fodder meget smaa, 9-leddede, med
simple Torner og endende me<l en kraftig Klo.
Gang-fodderne forholdsvis korte og robuste, med Tarsalleddet
meget kort, Endekloen kraftigt udviklet, som oftest uden
Bikloer. Kun et enkelt Par af Kjonsaabninger hos begge
Kjøn, beliggende paa sidste Fodpars 2det Hofteled.
Æggemassen enkelt, kageformig.
Bemærkninger. Af denne Slægt, dell først
beskrevne inden nærværende Dyrclasse, kjendte man indtil
for nyligt kun en eneste Art, P. littorale Strøm. 1 Dohrn’s
Værk over de i Golfen ved Neapel forekommende Pycno-
Gen. Pycnogonum, Brunnich (1764).
Generic Character. — Body squareset, having hard,
rough integuments, sparingly furnished with hair. Proboscis
extending more or less straight forwards, smooth.
Oculi-ferous tnbercle obtuse. The false legs very small,
nine-jointed, with simple spines, and terminating in a powerful
claw. Ambulatory legs comparatively short and robust,
with the tarsus very short, terminal claw powerfully
developed, as a rule without auxiliary claws. A single pair
only of generative openings in either sex. on the 2nd coxal
joint of the last pair of legs. Egg-mass simple, cake-shaped.
Remarks. — Of this genus, the one first described
belonging to the present class of animals, was known till
of late but a single species, P. littorale Strom. In Dohrn’s
work however on the Pycnogonidea (Pantopoda) occurring
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