119 
til 649 F. Navnlig forekora den i ganske enorrae Mas- 
ser paa Stat, 18. Alle Stationer, alene raed Undta- 
gelse af Stat. 363, tilhfSrer den kolde Area. Ogsaa tra 
det kariske Hav har jeg havt ikke faa Exemplarer til 
Underspgelse, indsamlede under Nordenskjolds Expeditioner, 
og som saedvanlig her paa betydelig grundere Yand end i 
Nordhavet. 
Udbredning. Arten synes at have en vid Udbred- 
ning i de arktiske Have. De af Bell undersqgte Exem- 
plarer var fra arktisk Nordamerika, Wellington-Canalen, og 
af Miers angives den ogsaa fra Discovery-Bugten. Af 
Heller an fores den fra Frants Joseph Land og af Hoek 
fra forskjellige Stationer i Barents Seen. Under light- 
ening Expeditionen toges den i Fsero-Shetlands-Benden 
(Wyville Thompson), og under ,, Knight Errant “-Expedi- 
tionen erholdtes denne Art ifolge Hoek saa langt Syd som 
60° N. B., men paa meget dybt Vand. Endelig anfores 
den af Hansen fra det kariske Hav. At Arten er en regte 
arktisk Form, synes ifolge dens Forekomst utvivlsoint. 
Fain. 5. Ammotheidse. 
Legemet sammentrsengt, mere eller mindre ufuldkom- 
ment segmenteret. Saxlemmerne smaa og rudimentsere, i 
fuldt udviklet Tilstand uden Chela. Fplerne vel udviklede, 
4 — 9-leddede. Falske Fodder tilstede hos begge Kjon, 
7 — 10-leddede, uden Endeklo. Gangfodderne med Bikloer. 
Snabelen tenfonnig, mere eller mindre bevsegeligt forbunden 
med Hovedsegmentet. 
Bemserkninger. Denne Familie indeholder en Del, 
fordetmeste meget smaa og underssetsigt byggede Pycnog- 
onider, der isaer udnuerker sig fra de i det foregaaende 
omtalte Former ved den rudimentsere Beskaffenhed af 
Saxlemmerne og ved Snabelens Bygning, i hvilke Henseen- 
der de viser mere Lighed med de til folgende Familie, 
Eurycydidce, henforte Former. Familien synes at inde- 
holde talrigc Slsegter, hvoraf dog here er meget ufuldstsen- 
digt characteriserede. Som utvivlsoint henhqrende til nser- 
vssrende Familie maa jeg betragte fqlgende Skegter: 4m- 
mothea, Leach; Tanystyhm, Miers; Pariboea, Philippi; 
Gicedbates, Hesse; Oorhynchus, Hoek; Clothenia, Dohrn og 
Trygceus, Dohrn. Ogsaa om adskillige andre opforte Slsegter 
kan det med nogenlunde Sikkerhed siges, at de til borer 
nservaerende Familie; men hvorvidt de i Virkeligheden er 
distinete, eller om de falder sammen med nogen at de 
ovenanforte Skegter, lader sig paa Grand af den ufuld- 
stamdige Beskrivelse vanskeligt afgjore. Saadanne Skegter 
er: Bohmia, Hock; Phanodesmus, Costa; Pephredo, Goodsir; 
Platycelus, Costa; Lecythorhynchus , Bohin. Hos os er 
Familien kun reprsesenteret af en enkelt Slsegt. 
of Spitzbergen; depth from 260 to 649 fathoms. Espec- 
ially did it present itself in quite enormous quantities at 
Station 18. All the Stations, with exception of Stat. 363 
alone, pertain to the cold area. From the Kara Sea, also, 
I have had not a few specimens for investigation, collected 
during Nordenskjold’s Expeditions, and, as usual here, in 
much shallower depths than in the North Atlantic Ocean. 
Distribution. The species appears to have an ex- 
tensive distribution in the Acrtic seas. The specimens 
investigated by Bell were from Arctic North America, 
Wellington Channel; and it is also remarked by Miers 
from Discovery Bay. Heller has remarked it from Frants 
Joseph’s Land, and Hoek from several stations in Barents 
Sea. On the „Lightning“ Expedition it was taken in the 
Faroe-Shetland channel (Wyville Thompson), and on the 
„Knight Errant 11 Expedition it was obtained, according 
to Hoek, as far south as 60° N. lat. but at a very great 
depth. Finally, it is remarked by Hansen from the Kara 
Sea. That the species is a genuine Arctic form seems 
from its occurrence to be indubitable. 
Fain. 5. Ammotheidse. 
The body compact, more or less imperfectly seg- 
mented. Chelifori small and rudimentary, in the fully devel- 
oped state no chela. Palpi well-developed, 4— 9-jointed. 
False legs present in both sexes, 7 — 10-jointed, without 
terminal claw. Ambulatory legs with auxiliary claws. 
Proboscis fusiform, more or less movably connected to the 
cephalic segment. 
Remarks. This family includes a number of. chiefly 
very small and stoutly built Pycnogonids, which especially 
distinguish themselves from the previously mentioned forms 
by the rudimentary nature of the chelifori and the struc- 
ture of the proboscis, in which respects they display a 
greater resemblance to the forms referred to the following 
family Eurycydidce. The family appears to include numer- 
ous genera, of which, however, several are very imperfectly 
characterized. I must regard the following genera as in- 
dubitably pertaining to the present family: Ammothea, 
Leach; Tanystyhm, Miers; Pariboea, Philippi; Oiceobates, 
Hesse; Oorhynchus, Hoek; Clothenia, Dohrn and Trygceus, 
Dohrn. Also in regard to several other genera which 
have been established, it may with some degree of certainty 
be said, that they pertain to the present family; but 
whether they really are distinct, or coincide with any of 
the above-named genera is difficult to determine owing 
to the imperfect descriptions supplied. Such genera are: 
Bohmia, Hoek; Phanodesmus . Costa; Pephredo, Goodsir; 
Platycelus, Costa; Lecythorhynchus, Bohm. In the northern 
seas the family is only represented by a single genus. 
\ 
