103 
Uogen Tilnaermclse til dot for A. baffini characteristiske 
l J1 4gede Fdseende var at beniserke hos nogen af de her 
•ndsamlede Exemplarer. Miers opfarer den vistnok des- 
u< Ltet kun soni en Varietet af A. baffini ; men det syncs 
nil g dog, a t dot Faktum, at den selvsamme Form forekom- 
'j 101 l Kla er > vidt adskilt Localitet i Nordhavet, i Forbin- 
e So Ule d de ovenanforte Data, taler sta'.rkt til Forfiel tor 
Cens Orkolige specifiske Forskjel fra A. baffini, hvorfor jeg 
^saa tror her at burde opfore den som en distinct Art 
wndci det af mig forst foreslaaede Navn. 
Beskrivelse af Hunnen. Legemets Form er (se PI. 
. ! ^ 'a- omtrent som hos foregaaende Art, dog for- 
loldsvig eqdnu noget mere underssetsig. Dets Overbade 
' 1 na § e t ru, man ilcke som hos A. baffini loddent, og de 
01 d * u A.rt characteristiske dorsale Fortsatser mangier her 
gansko eller er kun repraesenterede ved lidet fremspringende 
rundagtige Knuder. 
p Hovedet riser ovcntil istedetfor de 2 hoie koniske 
'•'tsatser, dor udmserker foregaaende Art, kun en stump, 
1 lidten noget fordybet Forhoining. 
lsto trie Forkropsseginent er oventil fuldkommen glat, 
o] iniod de 6 tblgende. hari Midfen af Rygfladen en stump, 
Porhaining. Epiinererne paa de 3 sidste Segmenter 
‘ 1 so m hos foregaaende Art stierkt udstaaonde til Siderne, 
111 n mindre skarpt tilspidsede. 
Eagkroppens 2 foreste frie Segmenter er fuldstsendig 
?. u, len S])or af nogen dorsale Fortsatser, og. heller 
." l ‘ l ,aa Endesegmentets llygflade bemserkes nogen saa- 
1 anno, hvorimod der ved Basis af samme findes til liver 
’fi f ‘ en stump trianguker Sidefortsats. 
Oinene er af et lignende Udseende som hos A. baffini, 
ok r) g fvemstaaende, trianguhurt nyredannede og forsynede 
n,l!(l ">«Oct Pigment. 
Uvad Kroppcns forskjellige Lemmer angaar, saa liar 
P-5 ikke kunnet undersoge disse saa noiagtigt, som jeg 
u, "fie have onsket, da det eneste foreliggende Exemplar 
lu, Utte skaanes. Men de syncs i alt vsesentligt at ligne 
Samme af A. baffini. 
llet foreliggende Exemplar var en fuldt udviklet Hun 
^ fi'Ude sine 2det Par Folere bet besatte mod den nylig 
1 ystposen udkrobne Yngel. 
Par ven var meget bleg kjodfarvet, faldende mest i 
Uet gnle. 
Lmngden af det erholdte Exemplar var, uden at regne 
interne, 35*™. 
Forekomst og Udbredning. Det beskrevne Exemplar 
optoges under Expeditionens Iste Togt i Havet udenfor vor 
estkyst fra et Dvb af 412 Favne, indviklet i en de til 
^rnidskrabc 
• ’ ***' ‘^ Jea og liggor paa Afheldet fra Havbankerne mod 
fPinfiskraben fmstede Svabberter. Stationen tilhorer den 
le A 
<let udenf or liggende 
store Havdvb. 
p ‘ s,lin ovenantbrt blev den samme Form under den 
’s'lske Nordpol-Expedition med “Alert” og “Discovery 
even in great abundance thoughout one locality, none of the 
specimens there taken having however exhibited the slightest 
approximation to the peculiar spiky appearance characteristic 
of A. baffini. Miers regards it indeed notwithstanding as a 
variety of A. baffini; but, in my judgment, tin* fact of the 
self same form occurring in a widely different locality in the 
Northern Ocean, together with the above-stated data, militates 
strongly in favour of its true specific distinctness from A. 
baffini; and hence I have seen fit to establish it as a sep- 
arate species under the name I first suggested. 
Description of the Female. — The form of the body 
(see PI. IX, fig. 22) is about the same as that in the preceding 
species, though comparatively still more thickset. Its 
surface is somewhat rough, but not, as in A. baffini, clothed 
with hair; and the dorsal projections characteristic of that 
species are entirely wanting, or represented merely by small 
and but slightly protruding roundish knobs. 
The head exhibits above, in place of the 2 elevated 
conical projections that distinguish the preceding species, 
simply an obtuse prominence, somewhat depressed in the 
middle. 
The 1st free segment is perfectly smooth above, whereas 
the 6 succeeding segments have in the middle of the dorsal 
surface an obtuse, bifurcate prominence. The epimera on 
the last 3 segments project, as in the preceding species, 
very considerably toward the sides, but are less acutely 
pointed. 
The 2 anterior free segments ot the abdomen are 
perfectly smooth, without a trace of dorsal projections, nor 
can any such be observed on the dorsal surface of the 
terminal segment, whereas at the base is seen on either 
side an obtuse, triangular lateral projection. 
The eyes, of the same appearence as in A. baffini, 
large and protuding, triangular-reniform, and furnished with 
a dark pigment. 
As regards the various appendages of the body, I 
h aV e lacked opportunity to examine them with the accuracy 
I could have wished, the only specimen before me having 
had to be very carefully handled. In all essential characteri- 
stics. however, they apparently resemble those in A. baffini. 
The specimen secured was a fully developed female, 
and had the 2nd pair of antenniB thickly covered with 
young, that apparently had just left the marsupium. 
The colour was an exceedingly light pink, with a 
distinct shade of yellow. 
Length of the specimen obtained — excluding the 
antenna — 35™'". 
Occurrence and Distribution. — The specimen de- 
scribed was brought up, on the 1st cruise of the Expedi- 
tion off the West Coast of Norway, from a depth of 412 
fathoms, attached to one of the hempen tangles fastened 
t0 t h e dredge. The Station lay in the cold area, on the 
slope of the banks that shelve down to the great ocean 
depths. 
As stated above, the same form was found on 
the English North Pole Expedition with the “Alert” and 
