KONGL. SV. VET. AKADEMIENS HANDL1NGAR. BAND. 21. N:0 5. (51 



Colour. Whitish. 



Length. 10 nun. 



Hab. The South Atlantic; the Pacific. (M. Grodeffroy.) 



Syil. 1887. Vibiiia longijjes, 0. BOVALLIUS. "Systematical list of the Araphipoda Hyperiiclea». Bill. t. 



K. Sv. Vet. Ak. Handl. Bd. 11. N:o 16, p. 8. 



In many of its characteristics Vibiiia longipes resembles V. robusta, but it is easilv 

 distinguished by the long slender pereiopoda of the fifth and sixth pairs. From Vibiiia 

 Edwardsi, probably its nearest relative, it is distinguished by the form of the flagelluni 

 of the first pair of antennae, and by the short uropoda. 



The head is deeper than long, rounded below. 



The eyes are comparatively large; they occupy more than two thirds of the depth 

 of the head. 



The first pair of antennw are nearly as long as the head and the first pereional 

 segment, the peduncle is shorter than half the first joint of the flagelluni. 



The epimerals are not very large, even. 



The ovitectrices are very large, ovate, those of the fourth pair the largest. 



The first pair of pereiopoda (PI. VIII, fig. 27); the femur is considerably shorter than 

 the following joints together. The hinder margin of the metacarpus is straight, strongly 

 serrated. The dactylus is longer than half the metacarpus, serrated. 



The second pair (PI. VIII, fig. 28). The tibial process is about as long as half the 

 carpus, fringed with bristles. The carpal process is almost as long as the hinder margin 

 of the metacarpus. The dactylus is a little longer than half the metacarpus, serrated. 



The third and fourth pairs (PI. VIII, fig. 29) are equal, slender. The tibia is not 

 longer than the carpus. The metacarpus is as long as the carpus. The dactylus is 

 almost straight, shorter than half the metacarpus. 



The fifth and sixth pairs (PI. VIII, fig. 30) are very elongated. The femur is elon- 

 gate-ovate. The tibia is much longer than the carpus. The metacarpus is much longer 

 than the tibia, but shorter than the tibia and carpus together. The dactylus is shorter 

 than a third of the metacarpus. 



The seventh pair are scarcely shorter than the fourth (21:22). The dactylus is as 

 long as half the metacarpus. 



The pleon is as long as the last four pereional segments. 



The first segment of the urus is longer than the two following together, the second 

 segment is half as long as the third. The hinder corners of the third segment are feebly 

 rounded, not produced. 



The uropoda (PI. VIII. lig. 31); the peduncle of the first pair is very broad, serrated 

 at the outer margin, the rami are lanceolate, acute, serrated. The peduncle of the second 

 pair is narrower. 



