196 
derved, at 4de Led nedad leber ud i en tungeformig bprste- 
besat^Lap, som mangier, eller ialfald er betydclig kortere 
paa 2det Par. 
Af de egentlige Gangfodder er de 2 forreste Par 
overordentlig tynde, de 3 bagerste noget robustere, men 
endnu temnielig spinkle og omtrent indbyrdes af ens Lamgde. 
Deres Hofteled er regelmsessigt ovalt, sidste Led meget 
smalt, linesert, og Endekloen saerdeles lang og tilspidset. 
De 3 Par Halefodder er indbyrdes af ens Bygning 
og aftager snccessivt i Lamgde, saa at de tilbagestrakte 
omtrent naar til samme Tvserlinie. Grenene er paa alle lan- 
cetformige og lige lange, uden tydelige Torner eller Hors ter. 
Halevedhasnget manglede paa det underspgte Exemplar. 
Earven er hvidagtig, gjennemsigtig, uden tydelig Pig- 
montering. 
Lsengden af det undershgte Exemplar er 13 
Forekomst. Et enkelt Exemplar af denne anomale 
Form toges under Expeditionens 2det Togt i Havet NY 
af Finmarken (Stat. 205) paa det betydelige Dyb af 1287 
Favne. Stationen til borer den kolde Area. 
Fain. Ampeliscidse. 
Gen. Ampelisca, Krbyer, 1842. 
Naturh. Tidsskr. 1 R. IV. 
60. Ampelisca odontoplax, G. 0. Sars, n. sp. 
(PI. XVI, Fig. 4). 
Ampelisca odontoplax, Or. 0. Sars, Crust. & Pycongonida nova etc., 
No. 31. 
Artscharaeteristik. Legemet stserkt sammentrykt, men 
mod rund B,yg. Hovedet oventil tydeligt kjolet, med Pande- 
delen noget fremspringende og stumpt tilrundet. Den nedre 
bagre Yinkel paa de 3 forreste Par Epiinerer udtrukket 
til et tandformigt Fremspring. 3die Bagkropssegments Side- 
plader nmsten retvinklede. Ingen 0ine. Iste Par Folere 
omtrent af Legemets halve Lamgde, med Skaftets 2detLed 
smalt og forkenget. Svoben dobbelt saa lang som Skaftet; 
2det Par naesten af hele Legemets Lamgde, med Skaftets 
nsestsidste Led storst, 3die ragende frem foran Hovedets 
Spids. Endekloen paa 3die og 4de Fodpar Ifengere end 
de 2 sidste Led tilsammen. Sidste Fodpars Hofteled bagtil 
udvidet til en bred, i Enden afkuttet og naesten til Enden 
at 3 die Led naaende Lob ; sidste Led Isengere og smalere 
2nd, and also distinguished by the 4th joint jutting out 
below as a linguiform, bristle-bearing lobule, absent, or at 
least much shorter, on the 2nd pair. 
Of the true ambulatory legs, the 2 anterior pairs are 
remarkably feeble, the 3 posterior by comparison somewhat 
robust, though rather slender, and, as regards length, about 
equal. The basal joint has a regular oval form, the last 
articulation is very slender, linear, and the terminal claw 
exceedingly long and pointed. 
The 3 pairs of caudal stylets are uniform in structure, 
and diminish successively in length; hence, they reach, when 
stretched backward, to about the same transverse line. The 
branches on all are lanceolate and uniform in length, with- 
out distinct spines or bristles. 
The telson wanting in the specimen examined. 
Colour whitish, translucent, without distinct pigmenta- 
tion. 
Length of the specimen examined 
Occurrence. — One individual only was taken of 
this anomalous form, on the 2nd cruise of the Expedition, 
in the sea north-west of Finmark (Stat. 205), at the great 
depth of 1287 fathoms. The Station was located in the 
cold area. 
Fain. Ampeliscidse. 
Gen. Ampelisca, Kroyer, 1842. 
Naturh. Tidsskr. 1 R. IV. 
60. Ampelisca odontoplax, G. 0. Sars, n. sp. 
(PI. XVI, fig. 4). 
Ampelisca odontoplax , Gr. O. Sars, Crust. & Pycnogonida nova etc., 
No. :il. 
Specific Character. — Body greatly compressed, but 
with back round. Head, above, distinctly keeled, with 
frontal part somewhat projecting and obtusely rounded. 
Lower posterior angle on the 3 anterior pairs of epimera 
drawn out as a dentiform projection. Lateral plates of 
3rd abdominal segment almost rectangular. No eyes. First 
pair of antennae about half the length of body, with 2nd 
joint of peduncle slender and elongate, flagellum twice as 
long as pedunclej; 2nd pair almost equal to whole body 
in length, with penultimate joint of peduncle largest; 3rd 
projecting beyond extremity of head. Terminal claw on 
3rd and 4th pairs of legs longer than the 2 last joints 
taken together. Basal joint of last pair of legs expanded 
posteriorly to a broad lobe, truncate at extremity, and 
