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73<br />

Superior antennae very small, with the first joint of the peduncle quite short, and<br />

extended straight in front, at a right angle to the remaining part of the antenna.<br />

Inferior antenme very slender, with the last peduncular joint much elongated.<br />

Oral parts on the whole resembling those in Cirolana. Anterior pairs of legs<br />

rather short and thick, the 4 posterior ones gradually increasing in length, and<br />

having the outer joints broad and compressed. Pleopoda<br />

of normal structure.<br />

Uropoda with the basal part only very slightly produced inside, rami compara-<br />

tively broad, lamellar, and edged with long seta?.<br />

Remarks. This genus, established by Leach, is very nearly allied to<br />

Cirolana, though differing in some particulars, so as to justify its separation.<br />

The genus Slaltberina of v. Beneden is undoubtedly identical with Leach's genus.<br />

We know of about 8 species, one of which belongs to the fauna of Norway, and<br />

will be described below.<br />

Eurydice pulchra, Leach.<br />

(Fl. XXX, fig-. 2.)<br />

Ewydicc piJchra, Leach. Trans. Linn. Soc. XI, p. 370.<br />

Syn : Slabberina again,<br />

\. Beneden.<br />

ayilis, G. 0. Sars.<br />

gracilis, Bovallius.<br />

Specific Characters. -Body in adult specimens rather short and stout, oval<br />

in form, and rather convex above. Cephalon evenly<br />

rounded in front. Coxal<br />

plates well defined, and quite smooth. Metasome about the length of the 5 poste-<br />

rior segments of mesosome combined, 1st segment very short, almost concealed;<br />

terminal segment very large, about the length of the preceding ones combined,<br />

and semi-oval in form, tip obtusely rounded, and armed with 4 minute spinules.<br />

being, moreover, fringed with small bristles. Eyes rather large, oval triangular,<br />

extending a little up the dorsal face. Superior antenme with the flagellum<br />

5-articulate, 1st joint much larger than the other 4 combined. Inferior antenme.<br />

when reflexed, reaching almost to the end of the mesosome. last joint<br />

of the<br />

peduncle about the length of the preceding joints combined, flagellum extremely<br />

slender, and composed of about 20 articulations. Legs densely setiferous, and<br />

armed with scattered short spines; last pair with the meral and carpal joints much<br />

expanded, propodal joint about the length of the carpal one, but considerably<br />

narrower; dactylus in all pairs rather small. Uropoda with the basal part densely<br />

setous outside, and having a single bristle at the inner corner, terminal plates<br />

rather unequal, the inner one being much broader than the outer, and obliquely<br />

truncated at the end. Body ornamented dorsally with richly ramified, dark, pig-<br />

10 Crustacea.

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