VEGA-EXPEDITIONENS VETENSKAPLIGA ARBETEN. 200 
2. Euthemisto libellula, Mandt, 1822. 
P1. 46, fig. 90—96. 
Syn. 1822. Gammarus libellula. Mandt. Observationes in Histo- 
riam naturalem et Anato- 
miam comparatam in iti- 
nere groenlandico factee, 
; Pp. 32. 
1865. Themisto lUibellula. > A. Goöés. »Crustacea Amphipoda 
maris Spetsbergiam <al- 
luentis, cum <:speciebus 
aliis arcticis.> Öfvers. af 
K. Vet.-Akad. Förhandl. 
IAN, NIO SA 196 kö a 
2 33. 
E. Libellula differs from the other species by the carpal 
process of the second pair of pereiopoda being longer than the 
metacarpus, provided with terminal spine, by the metacarpi of 
the third and fourth pairs not longer than carpi, by the exterior 
rami of the uropoda being a little shorter than the interior, 
and by the large, tongue-shaped telson, equalling a third of 
the length of the peduncles af the last pair of uropoda. 
Length 20—60 mm. 
ob ruineS Arretici Sea. 
3. Euthemisto bispinosa, A. Boeck, 1870. 
Pl. 46, fig. 97—103. 
Syn. 1870. Themisto bispinosa. A. Boeck. Crustacea Amphipoda borealia 
et arctica, p. 8. 
It is characterized by the carinated, serrated dorsal side, 
by the carpal process of the second pair of periopoda being 
shorter than the metacarpus, provided with a terminal spine, 
by the irreoularly trianevlar earpi of the third and fourth 
pairs being as long as the metacarpi, by the very short exterior 
rami of the uropoda, and by the small semicircular telson, not 
equalling a fifth of the length of the peduncles of the last pair 
of uropoda. 
Length 15—30 mm. 
Hab. Greenland, Spitzbergen. 
