KONGL. SV. VET. AKADEMIENS IIANULINGAK. BAND. 22. N:() 7. 



27 



2. PARAPHRONIMA ORÅCILIS, CLAUS, 1870. 



Pl. II, tig. 1 — 10. 



Diagli. Capiit altitudine longitudinem fere ajqutins, duplo altius quain segmentiiin primum persei, 

 segmenta quattuor prima pertei longitudine a;quans vel superans. Peden jxrad elongati, 

 graciles, femoribus angustissiniis. Feniur pedum primi paris articulis sequentibus con- 

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

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

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

 ramorum multo angustior. Tehon latum, post rotundatum. 



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

 long as, or longer than the first four perteonal 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 perajon. 

 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 tehon is broad, i'ounded 

 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. ef 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, Paraplwonima gracilis, CLAUS. 



1885. 



1888. 



Edwardsii, G. BOVALLIUS. 



cuivis, TH. STEBBING. 



— »Der Organismiis der Phronimir 



den». Arb. Zool. Inst. de- 

 Universität Wien. Vol. 2, p. 

 65 (8), Pl. 1, tig. 4—5. 

 C. BovALLius, 1885. »On some forgotten genera 

 among the Amphipodous 

 Crustacea». Bih. t. K. Sv. 

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

 14, p. 10. 

 » 1887. »Systeraatical list of the Ara- 



phipoda Hyperiidea». Bih. t. 

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

 11. N:o 16, p. 13. 

 — iiOn some forgotten genera 



araong 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. 

 Pl. 157. 



