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94
erholdtes fra et Dvb af 263 Favne. Begge Stationer
tilhorer den kolde Area.
Artens for Tiden bekjendte Udbredningsfelt strækker
sig saaledes fra den 63de til den 71 de Bredegrad og fra
5" østlig Længde til 10° vestlig Længde.
of .lan Mayen (Ståt. 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 71 st parallel of latitude, and from long. 5" E. to long.
10" W.
19. Anceus robustus. G. O. Sars. n. sp.
(Pl. VIII, Fig. 25—27).
Anceus robustus, U. O. Sars. Crustacea et Pycnogonida nova etc., No. ti.
Artscharacteristik. ♂ Legemet af særdeles kort og
robust Form. med Breden betydelig større end af
Længden. Integumenterne overalt ru af smaa Pigge, men uden
tydelig Haarbesætning. Hovedet særdeles stort og bredt,
fortil afstumpet. Siderne convexe. Næstsidste
Forkropsseg-ment oventil forsynet med en smal Længdefure. hvorfra en
i Enden tvedelt Tværfure strækker sig til liver Side.
Bagkroppen med tandede, lidet fremspringende Epimerer.
Øinene smaa, men tydelige. Kindbakkerne uden nogen tydelig
Tand i den ydre Kant. Fødderne kraftigt byggede med
stærke tandformige Fremspring. Bagkropslemmerne med
børstelose Endeplader. Den midterste Haleplade bag Basis
pludselig stærkt indknebet, med den ydre Del særdeles smal,
konisk. Enden tilspidset og forsynet med 2 divergerende
Borster. Farven hviagtig med enkelte utydelige gulagtige
Pigmentpletter. Længden 7’""’.
Larverne (Praniza) af sædvanlig Fonn. med store mørkt
purpurfarvede Øine. og gulrod Pigmentering.
Findesteder. Ståt. 280, 359.
Bemærkninger. Fra foregaaende Alt er denne let
kjendelig ved sin ualmindelig plumpe Kropsform, de kun
med meget sparsomme Haar, men talrige Smaapigge.
besatte Integuinenter og ved den midterste Haleplades meget
eiendommelige Form.
Beskrivelse af Hannen. Legemets Form er (se PI.
VIII, Fig. 25) endnu adskilligt plumpere og mere
undersætsig end hos foregaaende Art, med Breden betydelig
større end af Længden.
Integumenterne er temmelig faste og overalt, ogsaa paa
de 2 bagre Forkropssegmenter, ru af smaa Pigge,
hvorimod den tætte Haarbesætning, som udmærkede foregaaende
Art. her saagodtsom ganske savnes.
Hovedet er særdeles stort, omtrent dobbelt saa bredt
som langt, med Panderanden næsten tvært afskaaret og
Sidedelene stærkt convexe. Supraorbitalfortsatserne er
tydelige. men ganske smale og tandede i den ene Kant.
19. Anceus robustus, G. O. Sars. n. sp.
(Pi. VIII. figs. 23—’27).
Anceus rolntstus, (i. O. Sars. Crustacea et Pycnogonida nova etc.. No. li.
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
projections. 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 7’"".
The larvæ (Praniza) normal in form, with large dark
purple-coloured eves, 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 Pl. VIII. fig. 25) is much more clumsy and thickset
than in the preceding species, with the breadth
considerably exceeding one-third of the length.
The integuments are rather tinn 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
supraorbital projections are distinct, but very small, and dentate
along one oi the edges.
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