KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 22. N:0 7. 



27 



2. PARAPHRONIMA GRACILIS, CLAUS, 1879. 



PL II, fig. 1 — 10. 



Diagll. Caput altitudine longitudinem fere sequans, duplo altius quam segmentum primum perai, 

 segmenta quattuor prima perasi longitudine asquans vel superans. Pedes percei elongati, 

 graeiles, femoribus angustissimis. Femur pedum primi paris articulis sequentibus con- 

 junctis multo longius. Metacarpus pedum tertii ac quarti parium metacarpo pedum quinti 

 ac sexti parium brevior. Pedes quinti paris quam person longiores. Pedes septimi 

 paris pedibus sexti paris multo breviores. Pedunculus pedum uri ultimi paris longitudine 

 ramorum multo angustior. Telson latum, post rotundatum. 



The head is almost as deep as long, twice as deep as the first peraaonal segment, and as 

 long as, or longer than the first four pergonal segments together. The perceopoda are 

 elongate, slender, with very narrow femora. The femur of the first pair is much longer 

 than all the following joints together. The metacarpus of the third and fourth pairs is 

 shorter than that of the fifth and sixth pairs. The fifth pair are longer than the perason. 

 The seventh pair are much shorter than the sixth. The peduncle of the last pair of 

 uropoda is much narrower than the length of the rami. The telson is broad, rounded 

 behind. 



Colour. The body is whitish, almost hyaline, with a lustre of silver, the head is brown or deeply 

 red, owing to the pigment of the eyes. 



Length. <? 4—9, $ 5—11 mm. 



Hab. The tropical and temperate regions of the Atlantic; [Ch. E.; D. M.; F. M.; K. M.; P. M.; S. M.: 

 U. M.] the northern temperate and the tropical regions of the Pacific. [Ch. E.]. 



Syn. 1879. Paraphronima gracilis, CLAUS. 



1885. 



Edwardsii, C. BOVALLIUS. 



1888. 



cuivis, TH. STEBBING. 



»Der Organismus der Phronimir 

 den». Arb. Zool. Inst, de- 

 Universitat Wien. Vol. 2, p. 

 65 (8), PI. i; fig. 4—5. 

 C. Bovallius. 1885. »On some forgotten genera 

 among the Amphipodous 

 Crustacean. Bih. t. K. Sv. 

 Vet. Ak. Handl. Bd. 10. N:o 

 14, p. 10. 

 » 1887 . "Systematical list of the Am- 



phipoda Hyperiidea». Bih. t. 

 K. Sv. Vet. Ak. Handl. Bd. 

 11. N:o 16, p. 13. 

 — »On some forgotten genera 



among the Amphipodous Cru- 

 stacea". Bih. t. K. Sv. Vet. 

 Ak. Handl. Bd. 10. N:o 14, 

 p. 12. 



"Report on the Amphipoda». 

 Voy. of H. M. S. Challenger. 

 Zoology. Vol. 29, p. 1337. 

 PI. 157. 



