VEGA-EXPEDITIONENS VETENSKAPLIGA ARBETEN. dd 
First pair of pereiopoda without carpal processes, meta- 
carpi strongly serrated; carpus of second pair shorter than 
metacarpus, 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. 
Her Off Staaten Islandst(SE MS UTM 
[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 Thaumatopsida, C. Bovallius, 1886. 
Head and body very large and tumid. Eyes large, occu- 
pyling the upper sides of the head. First pair of antenne 
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. Willemoös-Suhm, 1874. 
Syn. 1842. Cystisoma. Guerin-Méneville. >» Description d'un Crustacé : 
amphipode formant un 
genre mnonveau dans la 
famille des Hyperines.» 
Revue Zoologique. Année 
1842, p. 214. 
1874. Thaumops. R. v. Willemoös-Suhm. »On a new genus of 
Amphipod  <:Crustaceans.> 
Philos. Trans. of the Roy. 
SR. VOR TEST DE 
p. 638. 
1886. Thaumatops. > C. Bovallius. »Remarks on 
the genus Cysteosoma or 
Ram atopsS> TBIRTTTR 
Svenska Vet.-A kad. Handl. 
Bd 11; N:o 9, p. ö. 
