Full resolution (JPEG) - On this page / på denna sida - Sidor ...
<< prev. page << föreg. sida << >> nästa sida >> next page >>
Below is the raw OCR text
from the above scanned image.
Do you see an error? Proofread the page now!
Här nedan syns maskintolkade texten från faksimilbilden ovan.
Ser du något fel? Korrekturläs sidan nu!
This page has never been proofread. / Denna sida har aldrig korrekturlästs.
Ai-tens for Titlen bekjendt Udbredningsfelt er det store
Havdyb mellem Norge, Beeren Eiland, Island og Jan Mayen
fra den 63de til den 75de Bredegrad.
The tract throughout which the species is at present
known to be distributed, comprises the great ocean deep
between Norway, Beeren Eiland, Iceland, and Jan Mayen,
from the 63rd to the 75th parallel of latitude.
18. Anceus hirsutus. Gr. O. Sars, n. sp.
(Pl. VIII, Fig. 23—24).
Ancetu hirsutus, (r. < 1. .Sars, Prodromus descriptiouis Crust, etc., No. (ili.
Artscharaeteristik. ♂ Legemet af undersætsig Form,
neppe 3 Gange saa langt som bredt og ikke mærkbart
af-smalneude fortil. Integumentérne paa den forreste Del
af Kroppen ru af smaa Pigge og tæt haarede. Hovedet
stort og bredt, næsten firkantet, med Sidedelene jevnt
con-vexe, uden Kjøl. De 2 bagre Forkropsseginenter uden
Pigge, med afrundede Epimerer; næstsidste Segment størst
og forsynet oventil med en korsformig Fordybning.
Bagkroppen oventil glat. med tilspidsede, borstebesatte Epimerer.
Øinene tydelige, men smaa. med mørkt Pigment. Folerne
af sædvanlig Bygning. Kindbakkerne af middelmaadig
Størrelse, med en liden, men tydelig Tand i den ydre Kant.
Enden skarpt tilspidset. Bagkroppens Buglemmer med smale
børsteløse Endeplader. Deu midterste Haleplade aflangt
triangulær, med Enden tilspidset og forsynet med 2 tynde
divergerende Børster. Farven ensformig skidden graabrun.
Længden 5l/ä""".
Findesteder. Ståt. 31. 237.
Bemærkninger. Den her omhandlede Art kan ikke
forvexles med foregaaende. Mere ligner den vore 3
indenlandske Arter: A. maxillaris, elongatus og dentatus, fra
hvilke den dog let kjendes ved sine tæt børstebesatte
In-tegumenter.
Beskrivelse af Hannen. Legemet er (se PI. VIII.
Fig. 23) kjendeligt kortere og plumpere end bos
foregaaende Art. neppe 3 Gange saa langt som bredt og fortil
ikke mærkbart afsmalnende.
Integumenterne er vistnok temmelig faste, dog langtfra
i den Grad som hos foregaaende Art. og er delvis ru af
meget smaa Pigge samt besat med lange og tætte Haar,
navnbg paa den forreste Del af Kroppen.
Hovedet’ er meget bredt, næsten firkantet, med
Panderanden i Midten kun lidet fremspringende og Sidedelene
jevnt convexe. uden nogen tydelig Kjøl.
Supraorbitalfort-satserne er tydelige, skjøndt temmelig smaa.
Af de frie Forkropsseginenter er de 2 forreste som
hos foregaaende Art kortest. 3die Segment er ved en dyb
Indsnoring skilt fra det følgende og er ligesom de 2
foregaaende Segmenter og Hovedet ru af talrige Smaapigge,
18. Anceus hirsutus. G. O. Sars, n. sp.
I Pi. VIII. tigs. 23, 24).
Anctns hirsutus, (i. O. Sars, Prodromus descriptiouis Crust, etc.. No. <>(i.
Specific Character. — ♂ Body thickset scarcely
3 times as long as broad, and not perceptibly tapering
forwards. Integuments on anterior portion of body
rough, by reason of minute spikes, and thickly covered
with hairs. Head large and broad, well-nigh quadrate,
with the lateral parts uniformly convex, and without any
keel. The 2 posterior pedigerous segments without spikes,
but with rounded epimera; penultimate segment largest,
and exhibiting above a cruciform depression. Abdomen,
above, smooth, with sharply pointed, bristle-beset epimera.
Eyes distinct, but small, with a dark-coloured pigment.
Antennæ ot the usual structure. Mandibles moderate in size,
with a small but distinct tooth on the outer margin,
extremity acutely pointed. Pleopoda with narrow, bristleless
terminal plates. Median caudal plate oblongo-triangular,
with the extremity pointed, and furnished with 2 slender,
diverging bristles. Colour a uniform dirty greyish-brown.
Length ä’/j""".
Locality. –■ Stats. 31, 237.
Remarks. — The species here treated of cannot be
confounded with the preceding. It has closer resemblance to
our 3 native (Norwegian) forms viz. — A. maxillaris, A.
elongatus, and A. dentatus, from which however it may easily be
recognized by the densely bristle-beset integuments.
Description of the Male. The body (see Pl. VIII,
fig. 23) is perceptibly shorter, as also more clumsy in form,
than in the preceding species, scarcely 3 times as long as
broad, and not obviously tapering anteriorly.
The integuments are indeed rather firm, though by
no means to the same extent as in the preceding species,
and in places rough, by reason of minute spikes, as also
clothed with long and close hairs, in particular on the
anterior part of the body.
The head is very broad, almost quadrate, with the
frontal margin projecting but slightly in the middle, and
the lateral parts uniformly convex, without any distinct
keel. The supraorbital projections are distinctly defined,
though comparatively small.
Of the free segments belonging to the anterior
division the 2 foremost are, as in the preceding species,
shortest. The 3rd segment is separated by a deep instriction
from the succeeding one. and, like the 2 preceding segments
<< prev. page << föreg. sida << >> nästa sida >> next page >>
