94 
erholdtes fra et Dyb af 263 Favne. Begge Stationer til- 
h0rer den kolde Area. 
Artens for Tiden bekjendte Udbredningsfelt strsekker 
sig saaledes fra den 63cle til den 71de Bredegrad og fra 
5° ostlig Lsengde til 10° vestlig Lsengde. 
19. Anceus robustus, G. 0. Sars, n. sp. 
(PI. VIII, Pig. 25—27). 
Anceus robustus, Gr. 0. Sars. Crustacea et Pycnogonida nova etc., No. 6. 
Artseharaeteristik. Legemet af sserdeles kort og 
robust Form, med Breden betydelig sterre end 1 / 3 af Lseng- 
den. Integumenterne overall, ru af smaa Pigge, men uden 
tydelig Haarbesfetning. Hovedet sserdeles stort og bredt, 
fortil afstumpet, Siderne convexe. Kaestsidste Forkropsseg- 
ment oventil forsynet med en smal Laengdefure, bvorfra en 
i Enden tvedelt Tvserfure strsekker sig til liver Side. Bag- 
kroppen med tandede, lidet fremspringende Epimerer. 0i- 
nene smaa, men tydeb'ge. Kindbakkernc uden nogen tydelig 
Tand i den vdre Kant. Fodderne kraftigt byggede med 
stserke tandformige Fremspring. Bagkropslemmerne med 
borstelose Endeplader. Den midterste Hafeplade bag Basis 
pludselig stserkt indknebet, med den ydre Del sserdeles smal, 
konisk, Enden tilspidset og forsynet med 2 divergerende 
Bprster. Farven hviagtig med enkelte utydelige gulagtige 
Pigmentpletter. Lsengdeu 7 mm . 
Larverne (Praniza) af smdvanlig Form, med store merkt 
purpurfarvede 0ine, og gulrpd Pigmentering. 
Findesteder. Stat. 280, 359. 
Bemaerkninger. Fra foregaaende Art er denne let 
kjendelig ved sin ualmindelig plumpe Kropsform, de kun 
med meget sparsomme Haar, men talrige Smaapigge, be- 
satte Integumenter og ved den midterste Haleplades meget 
eiendommelige Form. 
Beskrivelse af Hannen. Legemets Form er (se PI. 
VIII, Fig. 25) endnu adskilligt plumpere og mere under- 
ssetsig end hos foregaaende Art. med Breden betydelig 
sterre end ’/ 3 af Lsengden. 
Integumenterne er temmelig faste og overalt, ogsaa paa 
de 2 bagre Forkropssegmenter, ru af smaa Pigge, livori- 
mod den tfette Haarbesfetning, som udmserkede foregaaende 
Art, her saagodtsom ganske savnes. 
Hovedet er sserdeles stort, omtrent dobbelt saa bredt 
som langt, med Panderanden nmsten tvsert afskaaret og 
Sidedeleue stserkt convexe. Supraorbitalfortsatserne er ty- 
delige, men ganske smale og tandede i den ene Kant. 
of Jan Mayen (Stat. 237). where 2 specimens were likewise 
obtained, from a depth of 263 fathoms. Both Stations lay 
in the cold area. 
Accordingly, the tract over which the species is at 
present known to be distributed extends from the 63rd to 
the 71st parallel of latitude, and from long. 5° E. to long. 
10° W. 
19. Anceus robustus, G. 0. Sars. n. sp. 
(PI. VIII, figs. 23—27). 
Anceus robustus, (I. 0. Sars, Crustacea et Pycnogonida nova etc.. No. 0. 
Specific Character. — Body remarkably short, and 
robust in form, with the breadth but slightly exceeding one- 
third of the length. Integuments everywhere rough, by 
reason of minute spikes, but without any distinct covering 
of hair. Head very large and broad, anteriorly obtuse, 
sides convex. Penultimate pedigerous segment furnished 
above with a narrow longitudinal sulcus, from which a 
transverse sulcus, bifurcate at the extremity, protends on 
either side. Abdomen furnished with dentate, and but slightly 
projecting epimera. Eyes small but distinct. Mandibles 
without any distinctly developed tooth on the outer edge. 
Legs powerful in structure, with strong dentiform projec- 
tions. Pleopoda with naked terminal plates. Median caudal 
plate, posterior to the base, abruptly constricted, with the 
outer portion exceedingly narrow, conic, extremity pointed and 
furnished with 2 diverging bristles. Colour whitish, with 
scattered, indistinct patches of yellowish pigment. Length l mm . 
The larvm (Praniza) normal in form, with large dark 
purple-coloured eyes, and a yellowish-red pigment. 
Locality. — Stats. 290, 359. 
Remarks. — from the preceding species, the present 
may be readily distinguished by its remarkably clumsy form 
of body, by the integuments being furnished very sparingly 
with hair but having numerous minute spikes, and also by 
the exceedingly peculiar form of the median caudal plate. 
Description of the Female. — The form of the body 
(see PI. VIII, fig. 25) is much more clumsy and thickset 
than in the preceding species, witli the breadth consider- 
ably exceeding one-third of the length. 
The integuments are rather firm in consistence, and 
everywhere, even on the 2 posterior, pedigerous segments, 
rough from minute spikes, whereas the dense covering of 
hair that distinguishes the preceding species is well-nigh 
entirely wanting. 
The head is exceedingly large, about twice as broad 
as long, with the frontal margin abruptly truncate, and 
having the lateral parts prominently convex. The supra- 
orbital projections are distinct, but very small, and dentate 
along one oi the edges. 
