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177
Længden synes ikke at overstige 8""".
Forekomst og Udbredning. Vi har mider
Expeditionen taget denne smukke Form enkeltvis paa 5
forskjellige Stationer. Af disse ligger de 2 (Ståt. 31 og 87) i
Havet udenfor Romsdalen, den 3die (Ståt. 48) Øst af Island,
den 4de (Ståt. 200) NV. af Finmarken og den 5te (Ståt.
338) Syd af Spitsbergen. Alle disse Stationer tilhorer den
kolde Area; Dybden fra 146 til 620 Favne. Arten
forekommer desuden ved vore Kyster, nemlig i Varangerfjorden,
hvor jeg har taget den ikke sjelden paa større Dyb.
Dens for Tiden bekjendte Udbredningsfelt er herefter
temmelig betydeligt og strækker sig fra den 63de til den
76de Bredegrad og fra omtrent 31° 0. L. til 10" V. L.
Arten er utvivlsomt at betragte som en ægte arktisk Fonn.
The length would not appear to exceed 8""".
Occurrence and Distribution. — This beautiful form
was taken on the Expedition — isolated specimens — at
5 different Stations. Two of’ these (Stats. 31 and 87) were
located in the open sea, off the coast of Romsdalen; the
3rd (Ståt. 48) lay east of Iceland, the 4th (Ståt. 200)
north-west of Finmark, and the 5th (Ståt. 338) south of
Spitsbergen. All of the Stations were in the cold area;
depth from 146 to 620 fathoms. The species occurs, too,
off the shores of Norway, viz. in the Varangerfjord, where
I have not infrequently taken it at a depth of about 100
fathoms.
Hence, its range of distribution, as at present known,
is rather considerable, extending from the 63rd to the 76th
parallel of latitude, and from long. 31° E. to long. 10° W.
The species must unquestionably be ranked as a true Arctic
form.
Fain. Gammaridæ.
Gen. 1. Maera, Leach, 1813.
Edinb. Encyclop. VII.
51. Maera tenera. G. O. Sars, n. sp.
(Pl. XIV, Fig. -i.
Maera tcnella, O. Sars. Prodromus descriptionis Crust, etc., No.
Ill’ (non Stimpson).
Artscharacteristik. Legemet særdeles smalt, med smaa
Epimerer, lste Par størst, i Enden afrundet. Hovedets
Sideplader stumpt tilrundede. 3die Bagkropssegments
Sideplader næsten retvinklede. Ingen Øine. lste Par Folere
noget kortere end Skaftet, Bisvøben 4-leddet. 2det Par
Folere kortere end lste Par. lste Fodpar svagt bygget,
med Haanden neppe større end det foregaaende Led; 2det
Par meget robust, med bred, næsten firkantet Haand. De
ovrige Fødder særdeles tynde, de 3 bagerste Par længere
end de 2 foregaaende, med Hofteleddet smalt, lineært. Sidste
Par Halefødder omtrent af samme Størrelse som det
foregaaende Par. med begge Grene lancetformige og næsten af
ens Længde. Halevedhænget kort, tvelappet. Farven
hvidagtig, gjennenisigtig. Længden 10"™.
Fam. Gammaridæ.
Gen. 1. Maera, Leach, 1813.
Edinb. Encyclop. VII.
51. Maera tenera, G. O. Sars n. sp.
(Pl. XIV. tig. 7).
Maera tevella, ti. O. Sars, Prodromus descriptionis Crust, etc., No.
11!) (non Stimpson).
Specific Character. — Body exceedingly slim, with
small epimera, 1st pair largest, rounded at extremity.
Lateral corners of head obtusely rounded. Lateral plates
of 3rd abdominal segment almost rectangular. No eyes.
First pair of antennæ çomewhat shorter than body; with
the 2 first joints of peduncle about equal in length; flagellum
shorter than peduncle, secondary flagellum four-jointed.
Second pair of antennæ one-third shorter than 1st. First
pair of legs feeble in structure, with hand scarcely at all
larger than preceding joint; second pair exceedingly robust,
with broad, well-nigh quadrate hand. Remaining legs very
slender, the 3 posterior pairs longer than the 2 preceding
ones, with basal joint narrow, linear. Terminal pair of
caudal stylets about same size as preceding pair, with both
branches lanceolate and well-nigh equal ill length. Telson
short, bilobular. Colour whitish, translucent. Length
Findested. Ståt. 31.
Don norske NiirdUÄvsexpeditioii. G. O. Sals: Crustacea.
Locality. —
Ståt. 31.
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