KONGL. SV. VRT. AKADKMIKN.S HANDLINGAR. BAND. 



21. n:0 5. 



71 



15. VIBILIA PYRIPES, C. BOVALLIUS, 18S7. 



Pl. X, fig. 23 — .so. 



Diagn. Caput non rostratum, .segmenta duo priora peveii longiuidine hand a^quans. Oeuli parvi. 

 Flagelluni cmtennamm primi pari.'; ante rotundatum, capite longiu.s. Pedes peveii curti, non 

 hirsuti. Femora peduiii primi et seciindi parium angusta. Processus carpi pedum secundi 

 pai-is dimidio metacarpi brevior, non serratus. Tibiaj ac carpi pedum tertii et quarti parium 

 lati, fere tumidi, metacarpi ac dactyli breves. Pedes quinti ac sexti pariiun pedibus tertii 

 et quarti parium longiores; femora fere angusta, linearia; dactyli breves. Segmentum nri 

 secundum et tertium coalita, sed Hnea divisionis in marginibus est indicata. Anguli postici 

 segmenti ultimi producti, processus obtusos quam telson breviores formantes. Pedunculi 

 pediint nri primi et secundi parium superne angustiores, ramis longiores, pedunculus pedum 

 tertii paris pyriformis, ramis brevior. Trlxon magnuni, rotundatum, pedunculo ultimi 

 paris pedum uri paullo longius. 



The head is not rostrate, shorter tlian tlie first two pereional segments. The m/e.<! are small. 

 The flagellimi of the first pair of anienva' are anteriorly rounded, longer than the head. 

 The pereiojioda are sh()rt,not hirsute; the femora of the first two pairs are narrow. The 

 carpal process of the second pair is siiorter than the metacarpus. not serrated. The tibire 

 and carpi of the third and fourtli pairs are broad, almost tumid; the metacarpi and dactyli 

 are short. The fifth and si.xth pairs are longer than the third and fourth: the femora 

 are narrow, linear; the dactyli are short. The second and third ural segments are co- 

 alesced, but the line of division is marked by deep notches at the margins. The hinder 

 corners of the last segment are produced, forming obtuse processes shorter than the telson. 

 The peduncles of the uropvla of the first and second pairs are uarrower above, longer 

 than the rami: tliat of the third pair is pyriform, shortei- than the rami. The telson is 

 large, rounded, longer than the peduncle of the last pair of uropoda. 



Colour. Yellowish brown. 

 Length. 8—9 mm. 



Hab. Tropicnl parts of the Atlantic. (D. M. ; S. M.i 



Syn. 1887. Vibilia pyripes, C. BOV.-VJjLIUS. »Systeinatical list of the Amphipodfi Hyperiidr-a». Bili. t. K. 



Sv. Vet. Ak. Halldi. Bd. 11. N:o 16. p. 10. 



Thi.s species is at once distiiignished from its coiiofener.s by the short, pear-shaped 

 peduncle- of the last pair of uropoda. 



The body is broad; the iiiteoumeut is rather thick. 



The liead is muoh deeper than Idiiu, a little shorter than the first two pereional 

 segments, not produced into a rostruni. 



The eyes are small, elongate, broader above; tliey consist each of about 30 ocelli. 



The first pair of antemue are thick, broadlv rounded anteriorly. The basal joint 

 of the peduncle is thi'ee times longer than the two succeeding joints together. The first 

 joint of the flagellum is ovate, twice longer than the peduncle. 



The second pair of nntejince are eight-jointed in the male, the last joint the shortest. 



The first two 'pereional segments are almost equal in length, the fourth is the longest 



