KONGr,. sv. VET. AKADEMIKNS HANDUNGAR. BAND. 21. N:0 5. 



63 



a row of equidistant, short, fine hairs; the apex is obtusely pointed; the anterior margin 

 i.s oblique, fringed with a thick row of short iucipient (inicroscopic) spines. 



The second pair of antennce have a flagelhiin consisting of 7 articuli, one long, foui- 

 short, one a little lonoer, and a niinute terminal one. 



The fil'st pair of urojioda reach a little beyond the second; the rami have the margins 

 serrated. The second pair reach not beyond the extreraitv of the peduiicle of the last 

 pair. The rami are coarsely serrated, the denticles upon the inner margins minutely 

 serrated. The third pair have tlie peduiicle twice as long as the rami; the rami minutelv 

 serrated. 



The telson is lanceolate. 



11. VIBILIA VIATRIX, C. BOVALLIUS, 1887. 



Pl. IX, fig. 1—13. 



Diat!;n. Caput non rostratum, .segmenta dua priora percii longitudine asquans. Oaidi modici. Flagel- 

 liim aideniiaruin prinii paris ante obtusum, capite longius. l^edex pereii quinti el sexti 

 parium elongati, pedibu.* tertii ac, quarti [lariuni nuilto loiigioves. Femora ])edun) priini et 

 .secundi parium linearia, angusta. Tihi;r peduni tertii ac qiiarti parium tiimida^, dactyli 

 longissiiiii. Femora p(!diim quinti ac sexti parium triiucate ovata, metacarpi articulis 

 duobus pneeedentibus multo hreviore^. Dactylus septinii paris iiietacarpo multo brevior. 

 Segmentum secuudum ac tertium uri libera, non coalita. Auguli postici segmenti ultimi 

 uon prodiicti. Peduuculi peciioii iiri ramis lougiorcs. Tehoii magmim, olituse triangularc, 

 dimidio pcdiinculi ultimi ])aris pedum iiri hmgiui^. 



The head is not rosträtt-, as bmg as tlic first t\vi> pereinual segment.s. The ei/es are middlc- 

 sized. The flagellura of the first pair of antenna' are anteriorly obtuse, longer tliaii the head. 

 The fifth and sixth pairs of pereiupoda are elongate, iniich longer than the third aud 

 fourth pairs. The femora of the first and second pairs are narrow, liuear. The tibia> of 

 the tliird and fourth pairs are large, turaid; the dactyli verv long. The femora of the 

 fifth aud sixtli pairs are truncate ovatc: tiic ni(!tacarpi are much shorter than the two pre- 

 ceding joiuts togetlier. The dactylus of the seventh pair is much shorter than the metacarpus. 

 The second and tliird ural segments are free, not coalesced. The hinder corners of the 

 last segment are not jiroduced. Tiie peduncles of the uropoda are longer than the rami. 

 The telson i.s large, obtusely triangulär, longer than half the peduncle of the last pair of 

 uropoda. 



Colour. Yellowish. 



Length. lU— IH mm. 



Hal). The NortiL and Sduth Atlantic, tlic Pacific, the Indian Ocean. (I). .M.: S. M.: U. jNI.) 



Syu. 1887. VibiUa vialri.r, C. BOVALL^'r^ 



»Svstenuitical list of tlic Aiiqihipocla Hyperiidca". Eili 

 Sv. Vet. Ak. Halldi. Bd. 11. X:o 16. p. 8. 



t. K. 



Vibilia viatrix seems to be the tno.st cosiiiop<ilite s])ecies in the family. 1 kiiow it 

 from the North and South .\tlantic, the tropical [larts of the Pacific, and the Indian 

 (}cean. It is easilv to be distinguished from its cdngeners b\- the largely developed tibia' 

 of the third and fourtli jjairs of pereiopoda. 



