kan gjo're nogen Slutning, synes nservmrende Art, ligesom 
foregaaende, at veere en sydlig Form. 
61 
of Durham. So far as this will admit of our drawing a 
conclusion, the present species would seem, like the lore- 
going, to be a southern form. 
16. Nymphon brevitarse, Kroyer. 
(PI. V, Fig. 3, a— g). 
Nymphon ldrsutmn, Kroycr, Gronlands Amphipoder, p. 92, 
(non Sabine). 
Nymphon brevitarse, Kroyer, Nat. Tidsskr. N. R. Bd. 1, 
p. 1 15. 
— — Idem, Gaimard’s Voyage en Scandi- 
navie, PL 36, Fig. 4, a — f. 
— G. O. Sal’s, Pycnogonidea borealia & 
arctica No. 16. . 
Arts character. Legemet noget undersfetsigt, mod 
forholdvis korte og ikke meget vidt adsskildte Sidefortsat- 
ser. Hovedseginentet omtrent saa langt som de 2 folgende 
Segmenter tilsammen, Halsen kort og tyk, Pandedelen at 
middelmaadig Brode. 0ieknuden meget lav, airundet i 
Enden. Snabelen mesten af Hovedsegmentets Lamgde. 
Saxlemmerne kraftigt udviklede, Haanden at Skaftets Lamgde, 
successivt udvidet mod til n den, Fingrone betydelig kortere 
end Pahnen. Folerne forholdsvis robuste, 3die Led noget 
kortere end 2det, sidste Led kun lidet lamgere end nsest- 
sidste og betydelig smalere. De falske Fodder hos Hannen 
af middelmaadig Lamgde, Endepartiet lamgere end 5te Led, 
Randtorncrne som hos de 2 foregaaende Arter, men med 
7 Par Saugtakker i den ydre Del. Gangfodderne omtrent 
3 Gauge lamgere end Legemet, kraftigere end hos N. rubrum 
og besatte med spredte blode Borster ; Tarsalleddet kortere 
end Fodleddet; dette sidste temmelig kraftigt, med 6 standee 
Tomer i Inderkanten ; Eudekloen mere end halvt saa lang 
som Fodleddet, Biklderne vel udviklede, men noget kortere 
end hos de 2 foregaaende Arter. Legemets Lamgde 3” ; 
Spandvidde 20 mm . 
B emserkninger . Jeg antager det lor utvivlsomt, at 
nservaerende Form er identisk med Kr dyers Art, da den i 
alt vaisentligt stemmer meget ndie overens med den at ham 
givne Beskrivelse og de i Gaimard’s Rcisevaerk meddelte 
Figurer. Mr. AVilson inener, at Kroyers Art kun er en 
Dngdomsform af N. grossipes, og ogsaa senere Forskere 
har henholdt sig til denne hans Opfatning. Det ei mig en 
Tillredsstillelse mi at kunne luevde Kroyers Art igjeri i sin 
Ret. Den er nemlig utvivlsomt artsforskjellig ha A. ytos- 
sipes, og slutter sig i Virkeligheden meget menu ere til 
N. yracile. Fra begge disse Arter er den strax let og 
sikkert at kjende ved 0ieknudens meget forskjellige Form, 
en Character, som ogsaa er fremluevet af Kroyer. 
Beskrivelse. Legemets Lamgde hos det eneste 
foreliggende Exemplar, en fuldvoxen mgbmrende Han, er 
16. Nymphon brevitarse, Kroyer. 
(PI. v, fig. 3, a— g). 
Nymphon hirsutum, Kroyer, Gronlands Amphipoder, p. 92, 
(non Sabine). 
Nymphon brevitarse., Kroyer, Nat. Tidsskr. N. R., Bd 1, 
p. 115. 
— Idem, Gaimard’s Voyage en Scandi- 
navie, PI. 36, fig. 4, a — f. 
— — G. 0. Sars, Pycnogonidea boralia & 
arctica No, 16. 
Specific Character. Body somewhat thickset, with 
comparatively short and not very widely separated lateral pro- 
cesses. Cephalic segment about as long as the 2 following 
segments taken together, neck short and thick, frontal part 
of moderate breadth. Oculiferous tubercle very low, rounded 
at the extremity. Proboscis well-nigh the length of the 
cephalic segment. Chelifori powerfully developed; hand as 
long as scape, successively expanding towards the extremity ; 
fingers a good deal shorter than palm. Palpi comparatively 
robust, 3rd joint somewhat shorter than 2nd, last joint but 
a trifle longer than the penultimate one and much more 
slender. False legs in male of moderate length, terminal 
part longer than 5th joint, marginal spines as in the 2 pre- 
ceding species, but with 7 pairs of secondary teeth on the 
outer part. Ambulatory legs about 3 times longer than body, 
more powerful, -than in N. rubrum and beset with scattered 
soft setffi ; tarsal joint shorter than propodal ; the latter 
rather powerful, with 6 strong spines on the inner edge; 
terminal claw more than half as long as the propodal 
joint ; auxiliary claws well developed, but somewhat 
shorter than in the 2 preceding species. Length of body 
3"”", extent 20”"“. - 
Remarks. 1 regard the present form as unquestion- 
ably identical with Kroyer’s species, agreeing, as it does, 
in all essential particulars, very closely with the description 
he has given and the illustrations furnished in Gaimard’s 
Work. Mr. Wilson opines, that Kroyer’s species is merely 
an immature form of N. grossipes , and also subsequent na- 
turalists have adhered to that view. I am highly gratified 
in now being able to reinstate Kroyer’s species. The animal 
is, beyond doubt, specifically distinct from N. grossipes and 
approximates in reality much nearer to N. yracile. From 
both those species it may at once be easily and surely known, 
by the very different form of the oculiferous tubercle, a 
character on which Kroyer has also laid stress. 
Description. The length of the body in the only 
example before me, a full-grown ovigerous male, is some- 
