83 
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16. Typhlotanais cornutus, G. O. Sars, n. sp. 
(PI. VII, Fig. "29 — 38'. 
Paratannis cornutus, Gr. 0. Sars, Crustacea et Pvcnojronida ' nova etc., 
No. 5. 
Typhlotanais cornutus, G. 0. Sars, Revision af Gruppen Isopoda clieli- 
fera, pg. 33 . 
Artscharacteristik. $ Legemet ussedvanlig kort og 
unclerssetsigt, neppe mere end 4 1 /- Gang kengere end bredt. 
Hovedsi joldet af samrae Brede som Lsengde, til Siderne 
•l l ' nt convext, fortil i Midten udgaaende i en tilspidset 
1 ostruinlignende Fortsats. Lste frie Segment meget kort. 
Bagkroppen af samme Brede som Forkroppen, med sidste 
Segment forholdsvis kort. lste Par Folere af Ho vedskj old ets 
L'ongde, med lste Led lsengere end de 2 ovrige tilsammen. 
sidste Led meget smalt og forsynet med lange Bndeborster. 
Saxiodderne temmelig kraftigt udviklede, men med forkoldsvis 
idea og smalHaand; Fingrene kortere end Palmen. Basal- 
^ ,ldet paa de 3 sidste Par Gangfodder stserkt opsvulmet. 
a levedhaengene korte, med begge Grene 2-leddede, den 
indie noget lsengere end den ydre. Farven livid. Lseng- 
den 1.65»™. 
Bindested. Stat. 290. 
Bemserkninger. Nmrvffirende Art udmserker sig fra 
de des te ovrige til denne Slsegt hprende Arter ved sin ussed- 
'anlig korte og undemetsige Kropsform, den i Midten til 
nn tilspidset Fortsats uddragne Panderand og de ustedvanlig 
ange Bqrster paa Spidsen af lste Par Folere. I alle disse 
unkter riser den en stor Liglied med en anden at mig 
| ed vor Yestkyst funden Art. T. penicillatus, som dog let 
jendes fra, samme ved sine betydeligt liengere og tyndere 
i s te Par Folere. de langt svagere byggede Saxfodder og de 
stscrkere forlsengede Halevedhseng. I Munddelenes Bygning 
stemmer disse to Arter paa det noieste overens med de 
0y rige Arter af Sltegten. 
Beskrivelse af Hunnen. Legemets Form er (sc 1 1. 
v n. Fig. 29 og 30). som anfort. i Sammenligning med 
^ *Stens ovrige Arter ussedvanlig kort og underssetsig, idet 
7 en stfn ’ste Brede indeholdes 4 »/* Gang i Lsengden. Oven- 
la See i ; (Fig. 29) er Legemet nsesten overalt af ens Brede. 
' 111 1 * s 'n forreste og bagerste Del ubetydelig afsmalnende. 
Integumenterne er forkoldsvis tynde og halvgjennem- 
Slgtl S e , saa at Here af de indre Dele tydeligt sees igjennem 
samme. 
Hovedskjoldet er temmelig stort, af samme Brede som 
Gcengde 0 g til Siderne jevnt hvmlvet samt udunerket derved. 
Panderanden ikke som ssedvanlig er lige afskaaret, men 
!. Midten uddraget til en mellem Roden og lste Par Folere 
re mskydende tilspidset Fortsats oiler Pandehorn. 
16. Typhlotanais cornutus, G. 0. Sars, n. sp. 
(PI. VII, figs. 29—38). 
Paratanais cornutus, G. 0. Sars, Crustacea et, Pyeuogonida nova etc., 
No. 5. 
Typhlotanais cornutus, G. 0. Sars. Revision af Gruppen Isopoda cheli- 
fera, p. 38. 
Specific Character. — 9 "Body remarkably short and 
.thickset, but very little, if at all, more than 4‘/s times 
longer than broad. Cephalic shield ol same breadth as 
length, uniformly convex at the sides, jutting fortih anteriorly 
from the middle, as an acute, rostrum-like projection. First 
free segment exceedingly short. Abdomen of same breadth 
as anterior division, with last segment comparatively short. 
First pair of antenna* equal in length to cephalic shield, 
with 1st joint longer than the 2 others taken together, 
last joint exceedingly slender, and furnished with long terminal 
bristles. Ckelipeds rather powerfully developed, but with 
a small and slender hand; fingers shorter than palm. Basal 
joint of 3 last pairs of ambulatory legs extremely tumid. 
Caudal appendages short, with both branches two-jointed, 
inner somewhat longer than outer. Colour white. Length 
LGo™" 1 . 
Locality. — Stat. 290. 
Remarks. — The present species is distinguished from 
most other forms belonging to this genus by its remarkably 
short and thickset form of body, by the frontal margin jutting 
out in the middle as an acute projection, and by the unusu- 
ally long apical bristles of the 1st pair of antennae. In 
all these characteristics, the animal presents very consider- 
able resemblance to another species 1 have met with off 
the Norwegian coast, viz. T. penicillatus, easily recognized 
however from the former by its very much longer and more 
slender 1st pair of antennae, the far weaker structure of 
the chelipeds, and the more elongate caudal appendages. 
In the structure of the oral parts, these two species exhibit 
the most perfect agreement with the other species of the 
genus. 
Description of the Female. — The form of the body 
is (see PI. VII, figs. 29 and 30), as stated above, in com- 
parison with that in the other species of the genus, remark- 
ably short and thickset, the greatest breadth being con- 
tained not more than 4 1 /, times in the length. Viewed 
from above (fig. 29). the body appears almost everywhere 
uniform in breadth, tapering but very slightly in its anterior 
and posterior parts. 
The integuments are comparatively thin and semi- 
translucent, so that several of the inner parts may be dis- 
tinctly seen through them. 
The cephalic shield is rather large, of the same breadth 
as length, and uniformly arched at the sides, as also charac- 
terized" by the frontal margin not being, as usual, abruptly 
truncate, hut jutting out from the middle, between the bases 
of the 1st pail- of antennse, as an acutely pointed projection, 
or rostrum. 
1 ll* 
