236 
nedentil, taestet til (let indre Hjorne lige under den inderste 
Haleborste en overordentlig lang og tynd, ved Basis kme- 
formig b0iet og i en sser deles fin Spids udgaaende Borste, 
der opnaar mere end Legemets halve Lrengde. 
Det enkle 0ie er ganske lidet og simpelt bygget, be- 
liggende i det indre af Hovedets forreste Del og nan-mere 
Bug- end Rygsiden. Det hviler ■ umiddelbart paa Hjorne- 
gangliet og har 2 meget smaa lysbry deride Legemer. i Midten 
forbundne med en liden Ansamling af rodt Pigment. 
lste Par Folere er omtrent af Forkroppens Lsengde, 
meget tynde og lucres under Dyrets Bevaegelser udstrakte 
til liver Side, med en svag og jevn Krumning af det indre 
Parti. De er sammensatte af 23 tydeligt begramdsede Led, 
der idethele tiltager noget i Lsengde mod Enden i samme 
For hold som de bliver tvndere. Foruden en Del ganske 
korte Haar i den forreste Kant ved Enden af Leddene, 
bemasrkes paa disse Fplore et vist Antal af ualmindelig 
lange og stserke, i forskjellige Rctninger boiecle Burster, 
der i Forbindelse med den eiendommelige supplementaere 
Haleborste liar givet Anledning til Slaegtsbensevnelsen Eu- 
climta. Man trailer i den forreste Kant 6 saadanne strarkt 
udviklede Burster, tilhorende 3die, 7de, 8dc, 13de, 17deog 
20de Led. Navnlig er de fra 7de og 8de Led udgaaende 
meget lange og rettede skraat udad. Sidste Led brarer 
paa Enden 3 kengere Burster, livoraf den ene er rettet 
lige fortil, de 2 ovrige bagtil. Endelig har mestsidste Led 
ved Enden i don bagre Kant ligelecles en lang bagudrettet 
Borste. I det basale Parti af Folerne bemrarkes desuden 
langs den bagre Kant en tret Besratning af fine Haar eller 
Oilier. 
2det Par Folere (Fig. 5) viser den for Calaniderne 
sradvanlige Bygning og bestaar af et kort og muskulost 2- 
leddet Skaft og 2 temmelig ligeligt udviklede Grene. Den i 
inderste af disse, der danner den umiddelbare Fortsrattelse 
af Skaftet, bestaar at 2 uligestore Led, et temmelig smalt 
og forlranget lste Led og et ganske kort, sammeutrykt og 
i Spidsen afstumpet eller svagt tvelappet Endeled, hvorfra 
udgaar et tret Knippe af lange divergerende Fjserborster. 
Den ydre Gren, der er ubetydelig kengere end den indre 
og udspringer fra en Afsats i den bagre Kant af Skaftets 
sidste Led, er simpelt eylindrisk og noget boiet paa Minten 
samt meget bevsegelig. Den bestaar af 6 Led, livoraf det 
lste er ganske kort og uden Borster. Af de 5 ovrige Led 
er de 3 midterste ligeledes srardeles korte og In ert ligesom 
det foregaaende i den ene Kant forsynet mod en lang og 
stank Fjserborstc. Sidste Led, dor Or af samme Lsengde 
som de 4 foregaaende tilsammen, har i Spidsen 3 lange og 
strarkt boiede Fjserborster og i den ene Kant en kortere 
saadan. 
j naked bristle, as also, below, attached to the inner corner, 
immediately beneath the innermost caudal bristle, an ex- 
ceedingly long and slender seta, attaining more than half 
the length ot the body, — at the base geniculate, and 
terminating in a very delicate point. 
The single eye is quite small and simple in structure, 
placed within the foremost part of the head, and nearer 
j the ventral than the dorsal side. It rests immediately 
on the cerebral ganglion, and Jias 2 very small refractive 
corpuscles, connected in the middle, as it were, by a patch 
of red pigment. 
The 1st pair of antenna 1 are about equal in length 
to the anterior division of the body, very slender, and, 
during the movements of the animal, borne extended on 
either side, with a slight and equable curvature of the 
inner part. They consist of 23 distinctly defined articula- 
tions, which, upon the whole, increase somewhat in length 
toward the extremity, becoming in like proportion more 
slender. Exclusive of a quantity of very short hairs on 
the foremost margin at the end of the joints, may be 
observed on these antenna) a limited number of remark- 
ably long and powerful bristles, curving in various direc- 
tions, which, together with the peculiar supplementary caudal 
bristle, have suggested the generic designation Euehrata. 
On the foremost margin can be counted 6 of these power- 
fully developed bristles, belonging respectively to the 3rd, 
7th, 8th, 13th, 1 7th, and 20th articulation. Those issuing 
from the 6th and 8th articulations are in particular very 
long, and jut obliquely outward. The terminal articula- 
tion bears at the extremity 3 long bristles, one of which 
extends straight forward, the 2 others pointing backward. 
Finally, the penultimate articulation has at the extremity, 
on the posterior margin, likewise a long, backward-directed 
bristle. Moreover, in the basal part of the antennra occurs 
along the posterior margin a dense clothing of fine hairs, 
or cilia. 
The 2nd pair of antennae (fig. 5), exhibiting the structure 
usual in Calanidians, consist of a short and muscular two- 
jointed peduncle and 2 equably developed branches. The 
inner of these, constituting the immediate prolongation 
of the peduncle, is composed of 2 unequal articulations, 
a rather slender elongate 1st articulation and a very short, 
compressed, and at the point obtuse or faintly bilobular 
terminal joint, whence issues a dense fascicle of long, di- 
verging plumous bristles. The outer branch — but very 
little longer than the inner, and springing from a ledge 
on the posterior margin of the last joint of the peduncle 
— is simple cylindric, and somewhat bent in the middle, 
as also exceedingly mobile. Tt, consists of 6 articulations, 
of which the 1st is quite short, and without bi-istles. Of 
the 5 remaining articulations, the 3 median are likewise 
exceedingly short, and, in common with the preceding, 
bear each on one ot the margins a long and powerful plu- 
mous bristle. The last articulation, equal in length to the 
4 preceding taken together, has at the point 3 long and 
sharply curved plumous bristles, and on one of its margins 
a similar shorter one. 
