00 
indeholdende talrige smaa iEg, ssedvanlig 1 paa hver af de 
falske Fodder, sjeldnere i dobbelt Antal. 
Bemserkninger. Som Type tor denne sserdeles arts- 
rige Slsegt kan nsermest Nymphon grossipes, Fabr., gjaelde. 
Arterne er her ordnede nogenlunde i en bestemt Bsekke- 
folge, forbindende raed hinanden 4 underordnede Typer, 
nemlig N. gracile, Leach, N. longitarse , Kroyer, N. Stremii, 
Kroyer og N. serratnm, G. O. Sars. Om enhver af disse 
4 Arter grupperer sig mere eller mindre tydeligt de her 
opforte Former, medens den ovenfor anforte hoinordiske jj 
Art paa en Maade i sig forener alio 4 Gruppers Oharacterer. 
14. Nymphon gracile, Leach. 
(PL Y, Pig. 1, a — h). 
Nymphon gracile , Leach, Zool. Miscel. Vol. l, p. 45, PI. 
XIX, fig. 1. 
— Johnston, Mag. of Zool. and Botany, 
Vol. 1, p. 280, PI. XII, Fig. 9—12. 
_ _ Hoek, Niederl. Arch. f. Zoologie, III, 
p. 243, PI. XV, Fig. 11-13. 
_ _ Idem, Arch, de Zoologie expcrim., IX, 
p. 498, PI. XXIII, fig. 1—5. 
— Hansen, Zool. Danica, Tab. VII, Fig. 18. 
— Idem, Naturh. Tidsskr. 3 Baekke, Bd. 14, 
p. 648. 
— G. O. Sars, Pycnogonidea borealia & 
arctica No. 14. 
Arts character. Legemet noget underssetsigt, cy- 
lindriskt, med Sidefortsatserne ikke meget vidt adskilte. 
Hovedsegmentet omtrent saa langt som de 2 folgende Seg- 
m enter tilsammen, Halsen forholdsvis kort, Pandedelen tem- 
melig stserkt udvidet. Gieknuden stumpt konisk, neppe 
hoiere end bred ved Basis. Snabelen nsesten af Hoved- 
segmentets Ltengdc. Saxlemmerne kraftige, ITaanden af 
Skaftets Lsengde, aflang oval, Fingrene noget kortere end 
Palmen. Folerne med 2det og 3die Led af ens L.engde, 
sidste Led lidt lrengere end ntestsidste og begge tilsammen 
af 3die Leds Lamgde. De falske Fodder forholdsvis korte, 
Endedelen laengere end de 2 foregaaende Led tilsammen, 
Bandtornerne med omtrent 7 Saugtakker til hver Side, 
hvoraf det bagre Par er betydelig stserkere end de ovrige, 
Endekloen forholdsvis kort. Gangfodderne neppe mere end 
3 Gange lsengere end Legemet, besatte med stive spredte 
Burster; Laarlcddet hos Hunnen temmelig opsvulmet, lsto 
Lsegled kortere, 2det do. omtrent al Laarleddets Lmngde 
og neppe dobbelt saa langt som de 2 ydre Led tilsammen ; 
Tarsalleddet betydelig kortere end Fodleddet, det sidste 
kraftigt udviklet, noget krummet og bevsebnet med 4 stserke 
Tomer i Inderkanten; Endekloen neppe mere end halvt 
saa lang som Fodleddet, meget stank, Bikloerne vel udvik- 
lede, omtrent af Endekloens halve Laengde. Farven hvid, 
terminal claw with distinct auxiliary claws. The outer 
egg-masses in male globular, containing numerous minute 
ova. usually 1 on each of the false legs, more rarely the 
double number. 
Remarks. As the most approximate type of this 
very comprehensive genus, we may take Nymphon gros- 
sipes, Fabr. The species are arranged here in a somewhat 
definite succession, connecting with each other 4 subordinate 
types, viz., N. gracile, Leach, N. lorugilarse, Kroyer, N. 
Stromii, Kroyer, and N. serraturn, G. 0. Sars. Bound 
each of these 4 species, the forms described here, group 
more or less distinctly, whilst the northern species above 
recorded comprises in a sense, within itself, the characters 
of all the 4 groups. 
14. Nymphon gracile, Leach. 
(PL V, %. 1, a— h). 
Nymphon gracile . Leach, Zool. Miscell. Vol. I, p. 45, PI. 
XIX,' fig. 1. 
— — Johnston, Mag. of Zool. and Botany, 
Vol. I, p. 280, PI. XII, figs. 9-12. 
— — Hoek, Niederl. Archiv f. Zoologie, III, 
p- 243, PI. XV, figs. 1 1 — 13. 
— - Idem, Archiv de Zoologie experim., IX, 
p. 498, PI. XXIII, figs. 1—5. 
— — Hansen, Zool. Danica, Tab. VII, fig. 18. 
_ — Idem, Naturh. Tidsskr.., 3 Bsekke, Bd. 14, 
p. 648. 
— G. 0. Sars, Pycnogonidea borealia & 
arctica No. 14. 
Specific Character. Body somewhat thickset, cylin- 
dric, with the lateral processes not very far apart. Cephalic 
segment about as long as the 2 succeeding segments taken 
together, neck comparatively short, frontal part rather 
considerably expanded. Oculiferous tubercle conical-obtuse, 
hardly higher than broad at base. Proboscis well-nigh 
equalling the cephalic segment in length. Ghelifori powerful, 
hand as long as scape, oblongo-oval, fingers somewhat 
shorter than palm. Palpi with 2nd and 3rd joint of one 
length, last joint a trifle longer than the penultimate one, 
and both together equalling the length of 3rd joint. False 
legs comparatively short, terminal part longer than the 2 pre- 
ceding joints taken together, marginal spines with about 7 
saw-teeth on either side, the posterior pair considerably 
stronger than the others, terminal claw comparatively short. 
Ambulutory legs hardly more than 3 times longer than body, 
beset with stiff scattered bristles; femoral joint in female rather 
tumid ; 1 st tibial joint shorter, 2nd about the length of femoral 
joint and scarcely twice as long as the 2 outer joints taken to- 
gether; tarsal joint considerably shorter than propodal joint, 
the latter powerfully developed, somewhat curved, and armed 
with 4 strong spines on the inner edge ; terminal claw scarcely 
more than half as long as propodal joint, very strong; auxiliary 
claws well developed, about half the length of terminal claw. 
