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557

(1882-87) [MARC] Author: Adolf Erik Nordenskiöld
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First pair of pereiopoda without carpal processes,
meta-carpi strongly serrated; carpus of second pair shorter than
metaearpus, produced into a broad serrated process. The
epi-merals of fourth segment smaller than those of fifth. Inner
rami of second pair of uropoda elongate lanceolate.

Length 16—25 mm.

Hab. Off Staaten Islands (S. M., U. M.).

[The fifth family Paraphronimidae

seems to be restricted to the temperate and tropical regions;
it is however not unlikely that one or another of the species
may soon be recorded from the northern limits of the
ant-aretic region, as I have seen specimens captured as far south
as Lat. 44°.]

The sixth family Thaumatopsidae, C. Bovallius, 1886.

Head and body very large and tumid. Eyes large,
occu-pying tlie upper sides of the head. First pair of antenn®
straight, not tumid, few-jointed. Second pair rudimentary.
Mandibles without palp. Seventh pair of pereiopoda not
trans-formed. Uropoda very thick, prismatic, with distinet rami.

Genus 1. Thaumatops, R. v. Willemoés-Suhm, 1874.

Syn. 1842. Cystisoma. Guerin-Méneville. »Description d’un Crustacé

amphipode formant un
genre nonveau dans la
familie des Hyperines.»
Revue Zoologique. Année
1842, p. 214.

1874. Thaumops. B. v. Willemoes-Suhm. »On a new genus of

Amphipod Crustaceans. ■
Philos. Trans, of the Roy.
Soc. Vol. 163, part 2,
p. 638.

1886. Thaamcitops. > C. Bovallius. »Remarks on

the genus Cysteosoma or
Thaumatops.i Bili. t. K.
Svenska Vet.-Akad. Handl.
Bd 11, N:o 9, p. 5.

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