130 
clelig store, kjendelig kengere end Kroppen er bred, og 
kun adskilte ved smale Mellemrum. De er aoget fortyk- 
kede i Enden og langs Kanterne tint baarede. Hovedseg- 
mentet er onitrent saa langt sora de 3 folgende Segmenter 
tilsammen og afsmalnes kjendeligt fortil, idet Pandedelen 
kun er meget svagt udvidet, I nogen Afstand fra de for- 
reste Sidefortsatser udgaar fra Haisdelen til hver Side et 
temmelig stort, smalt afrundet Fremspriug, kvortil de falske 
Fodder or indleddede. Halesegmentet (Fig. 1 g) er, uligt 
hvad Tilfseldet er bos de fleste ovrige Pycnogonideer, meget 
skarpt afsat fra sidste Kropssegment, med hvilket det synes 
at vaere bevmgeligt articuleret. Det er forholdsvis smalt, 
men af betydelig Lmugde, onitrent ligt de 3 bagerste Krops- 
segmenter tilsammen, og horizontal bagudrettet. Af Form 
er det smalt tendannet, stserkt indknebet ved Basis og suc- 
cessivt udvidet til bag Midten, hvor det danner en noget 
vinkelformig Boining; det er her forsynet med en Tvaerrad 
af 4 — 6 strnrke, divergerende Burster, hvoraf de 2 staar 
tad sammen paa Rygsidcu. Denne Tvaerrad af Borster i 
Forbindelse med den eiendommeligc Boining paa dette Sted 
giver ved forste 0iekast Indtrykket af en Segmentering, 
og KrSyer bar ogsaa feilagtigt beskrevet Halesegmentet 
som bestaaende af 2 Led. 
0ieknuden (se Fig. 1 b, 1 c), der bar sin Plads lidt 
foran Midten af Hovedsegmentet, er stserkt ophoiet, noget 
foroverrettet, og af meget smal cylindrisk Form. Toppen 
er noget fortykket og ender i en stump Spids samt har 
til hver Side et lidet tandformigt Fremspring. Lindserne 
er vel udviklede, af middels Storrelse, og beliggende lige 
ved Enden af 0ieknuden. 
Snabelen (Fig. 1 d) er af en meget eiendommelig 
Bvgning. Den bestaar uemlig af to skarpt afsatte og med 
hinanden bevsegeligt forbundne Dele, et smalt cylindriskt, 
lige fortilrettet Skaft, onitrent af Hovedsegmentets halve 
Lsengde, og et stserkt opsvulmet, tenformigt Endeparti, der 
ialmindelighed er boiet ind under Kroppen. Naar begge 
Dele er udstrakte i samme Plan (se Fig. 1 a) er Snabelens 
Lsengde onitrent lig de 4 egentlige Kropssegmenter til- 
sammen. Af de to ovennawntc Dele er det egentlig 
kun Endepartiet, der svare'r til Snabelen bos andre Pyc- 
nogonideer. 
Saxlemmerne (Fig. 1 e) maa vistnok, som hos de til 
foregaaende Familie horende Former, siges at vaere rudi- 
mentaere, forsaavidt som de hos fuldt udviklede Individer 
mangier en egentlig Chela, men de er dog af ikke ube- 
tydelig Laengde, idet de er mere end lialvt saa lange som 
Legemet. De er forholdsvis meget smale, nrnsten lige 
fortilstrakte, og bestaar af 3 tydeligt begraendsede Led. 
Af disse tilhorer de 2 forste aabenbart Skaftet, som saa- 
ledes, afvigende fra hvad Tilfseldet pleier at vaere hos 
Pycnogonideerne, er 2-leddet. lste Led er noget kortere 
og betydelig tykkere end 2det, der er af smal lineaer 
Form; begge er paa den ovre Side forsynede med staerke, 
are unusually large, appreciably longer than the trunk is 
broad, and are only separated by narrow intervals. They 
are somewhat tumeficated at the extremity and finely setous 
along the margins. The cephalic segment is about as 
long as the 3 succeeding segments taken together, and 
tapers appreciably in front, as the frontal part is only 
very faintly expanded. At some distance from the fore- 
most lateral processes, a pretty large, narrow, rounded 
prominence, to which the false legs are articulated, issues 
on each side from the cervical part. The caudal segment 
(fig. i g) is. unlike the case in other Pycnogonids, very 
sharply demarcated from the last segment of the trunk, 
with which it seems to be flexibly articulated. It is 
relatively narrow but of considerable length, about equal 
to the 3 posterior segments of the trunk taken together, 
and is directed horizontally backwards. In shape it is 
narrow fusiform , strongly constricted at the base and 
successively expauded till behind the middle, where it 
forms a somewhat angular bend ; it is here furnished with 
a transversal series of 4—6 strong, divergent bristles, of 
which 2 stand close together on the dorsal side. This 
transversal series of bristles in conjunction with the peculiar 
bend at this part gives, at the first glance, the impression 
of a segmentation, and Kroyer has also erroneously described 
the caudal segment as consisting of 2 joints. 
The ocular tubercle (see tig. 1 b, 1 c), which is situ- 
ated a little in front of the middle of the cephalic seg- 
ment, is strongly protuberant, directed somewhat forward, 
and very narrow cylindrie in form. The top is somewhat 
tumeficated and terminates in a blunt point, and on each 
side has a small dentiform prominence. The lenses are 
well developed, of medium size, and are situated quite at 
the extremity of the ocular tubercle. 
The proboscis (fig. 1 d) is very peculiar iii structure. 
It consists, namely, of 2 sharply defined parts flexibly 
connected to each Other, a narrow, cylindrical scape 
directed straight forward, about half the length of the 
cephalic segment, and a strongly swollen, fusiform ter- 
minal part, which is usually folded in under the trunk. 
When both portions are extended in the same plane (see 
fig. 1 a) the length of the proboscis is about equal to 
that of the 4 segments proper of the trunk, taken together. 
Of the 2 above-named portions, it is really only the ter- 
minal part that corresponds to the proboscis in other 
Pycnogonids. 
The chelifori (fig. 1 e) must certainly, as in the forms 
pertaining (o the preceding families, be said to be rud- 
imentary, in so far that they in fully developed individuals 
have no real chela, but, still, they are of no inconsider- 
able length as they are more than half as long as the 
body. They are relatively very narrow, extended almost 
straight forward, and consist of 3 distinctly demarcated 
joints. Of these the 2 first evidently pertain to the scape, 
which thus, differing from what is usually the case in the 
Pycnogonids, is 2-jointed. The 1st joint is somewhat shorter 
and considerably thicker than the 2nd, which is narrow 
linear in form; both are furnished on the upper side with 
