122 
Hovedsegmentet som Ira den folgende Del af Truncus; 
for&vrigt er ingen tydelig Segmentering paa Kroppen be- 
mserkelig. Sidefortsatserne er (se Fig. 1 b) temmelig tykke, 
naesten kqlledannede, og har ved Enden oventil 2 ens ud- 
viklede pigformige Fortsatser, liver endende med en stiv 
Borste. Hovedsegmentet indtager ikke fuldt 1 / 3 af Krop- 
pens Lsengde og er naesten jevnt tykt, uden nogen tydelig 
Hals. Dets forreste Parti, eller Pandedelen, er tvaert af- 
kuttet i Enden, med Sidehjornerne udtrukne i en konisk 
fortilrettet Fortsats, forsynet med en liden Borste i Spidsen 
(se Fig. 1 e). De 2 bagerste Kropssegmenter er fuld- 
stfendig sainmenvoxne og kun antydedo ved de fra dem 
udgaaende Sidefortsatser, hvoraf det sidste Par som said- 
van lig er kortero og mere bagudrettet. Halesegmentet, 
der heller ikke er tydeligt afgrrendset fra Kroppen, er 
meget smalt, cylindriskt, og af betydelig Laengde, omtrent 
som Hovedsegmentet, samt horizontalt, endende i en stump 
Spids. 
0ieknuden ( se Fig. 1 b. 1 c. 1 e), der er beliggende 
belt fortil, nser Enden af Pandedelen, er af betydelig Stor- 
relse og staerkt ophoiet. Den er noget forover rettet og 
af cylindrisk Form, med et ganske kort kegleformigt Frem- 
spring i Midten af den stumpt afrundede Ende. Lindserne 
er forholdsvis smaa og beliggende helt ved Toppen af 0ie- 
knuden. 
Snabelen (se Fig. lb. 1 c. Id) udgaar noget ventralt 
fra Hovedsegmentets Ende og er meget skarpt afgraendset 
fra samme, idet der omkring dens Basis findos on fortykket 
circulscr Kant (se Fig. 1 d), hvorved paa en Maade en 
Slags Ledforbindelse kommer istand. Den er af betydelig 
Storrelse, over lmlvt saa lang som det ovrige Legeme, og 
ialmindeKghed mere eller mindre skraat nedadrettet. Af 
Form er den udprseget tendannet, idet den ved Basis har 
en stserk Iudknibning og snccessivt udvides til henimod 
Midten, hvorfra den igjen hurtigt afsmalnes mod Enden, 
som er stumpt tilspidset. Som hos andre Pycnogonideer 
er den sammensat af 3 Laengdesegmenter, hvoraf det upar- 
rede og smaleste indtager Dorsalsiden, de 2 ovrige eh Del 
af Sidefladerne og liele Undersiden, hvor de stoder sammen 
langs efter Midten (se Fig. 1 d). Mellem Segmenterne 
findes tsette tvaergaaende Muskier, der isser i det basale 
Parti af Snabelen er tydelige. Mundaabningen, der ligger 
paa Spidsen, er begraendset af 3 tydeligt fremspringende 
Laeber. 
Saxlennnerne er hos det voxne Dvr (se Fig. 1 b. 1 c) 
yderlig smaa og rudimentaere, neppe laengere end 0ieknuden 
er hoi, og faestede temmelig nser sammen til den forreste 
Rand af Hovedsegmentet ovenover Snabelens Basis. Skaftet 
er (se Fig. 1 f) af kolledannet Form og gaar ved Enden 
oventil ud i en temmelig staerkt fremspringende, i Spidsen 
tvekloftet Fortsats besat med 2 pigformige Burster . Eude- 
])artiet, der svarer til Haanden hos andre Pycnogonideer, 
liar kun Formen af et lidet kugleformigt Led, uden nogen 
Antydning til Fingre, Ved staerk Forstomdse kan dog 
tinctly demarcated, both from the cephalic segment as 
well as the succeeding portion of the trunk; there is, 
otherwise, no distinct segmentation to be noticed on the 
body. The lateral processes (see fig. 1 b) are pretty thick, 
almost clavate, and have at the extremity above 2 equally 
developed spiniform processes, each terminating in a stiff 
bristle. The cephalic segment occupies not quite 1 / 9 of 
the length of the body and is almost uniform in thick- 
ness, without any distinct neck. Its anterior portion, or 
the frontal part, is truncated at the extremity, with the 
lateral corners drawn out to a conical process, directed 
forwards and furnished with a small bristle at the point 
(see fig. 1 e). The 2 posterior segments of the the trunk 
are completely coalesced and only indicated by the lateral 
processes that issue fronj them, of which the last pair is, 
as usual, shorter and more posteriorly directed. The caudal 
segment, which, also, is not distinctly demarcated from 
the trunk, is very narrow, cylindric, and of considerable 
length, about the same as the cephalic segment, horizontal, 
and terminates in a blunt point. 
The ocular tubercle (see fig. lb, 1 c, 1 e), which 
is situated quite in front, near the end of the frontal 
part, is of considerable size and strongly protuberant. It 
is directed forwards a little and is cylindric in form, with 
a quite short conical prominence in the middle of the 
bluntly rounded extremity. The lenses are relatively small, 
and situated quite at the top of the tubercle. 
The proboscis (see fig. 1 b. 1 c. 1 d) issues some- 
what ventrally from the end of the cephalic segment, and 
is very distinctly demarcated from it, as round its base 
there occurs a thickened circular edge (see fig. 1 d) by 
which there is, in a manner, formed a kind of articulatory 
connection. It is of considerable size, more than half 
as long again as the rest of the body, and. usually, is more 
or less directed obliquely downwards. In shape it is dis- 
tinguished fusiform, as at its base it has a strong con- 
striction and is progressively expanded towards the middle, 
whence it again rapidly diminishes towards the extremity, 
which is bluntly pointed. As in other Pycnogonids it is 
composed of 3 longitudinal segments, of which the un- 
paired and narrowest occupies the dorsal side, the 2 others 
a portion of the lateral surfaces and the entire under side 
where they unite along the middle (se fig. 1 d). Between 
the segments closely placed transversal muscles are found, 
which are especially distinct in the basal portion of the 
proboscis. The oral aperture, which is situated -at the 
point, is bordered by 3 distinct protruding lips. 
The chelifori are, in the adult animal (see fig. 1 b. 
1 c), extremely small and rudimentary, scarcely longer 
than the ocular tubercle is high, and are secured pretty 
closely together to the foremost margin of the cephalic 
segment above the base of the proboscis. The scape is 
(see fig. 1 f) clavate in form and at the extremity, above, 
passes into a pretty strongly prominent process, bifur- 
cated at the point and beset with 2 spiniform bristles. 
The terminal part, which corresponds ' to the hand in other 
Pycnogonids, has only the form of a small globular joint, 
