KONGL. SV. VKT. AKADEMIENS HANDLINGAK. BAND. 21. N:0 5. 



69 



14. VIBILIA ARM AT A, C. BOVALLIUS, 1887. 



PI. X, fig. 15—22. 



DiagU. Caput obtuse rostratum, segmenta tria priora pereii longitudine ajquans. Oculi modici. Fla- 

 gellum antennarum primi paris angustum, acutiim, caput longitudiue a'quans. Pedes pereii 

 elongati. Femora pedum primi et secundi parium angusta, linearia. Processus carpi pedum 

 secuudi paris metacarpuin longitudiue aequans; metacarpus in apice productus duo processus 

 acutos ad basin dactvli formans. Tibiae pedum tertii ac quarti parium non tumida?, dactvli 

 longissimi. Pedes quinti ac sexti parium pedibus tertii ac quarti parium longiores; femora 

 lata, linearia. Pedes sexti paris pedibus quinti paris longiores; metacarpus elongatus dac- 

 tylusque longissimus. Femur pedum septinii paris parvuni, dactylus metacarpo multo brevior. 

 Segmentum uri secundum et tertium coalita. Auguli postici segmenti ultinii product!, 

 processus quam telson breviores formantes. Pedunculi pedum uri lineares, ramos longitudine 

 asquantes. Telson elongatuni,post rotundatum,diniidio pedunculi ultinii paris pedum uri longius. 



The head is obtusely rostrate, as long as the first two pereional segments. The eyes are 

 middle-sized. The flagellum of the first pair of antenna? is narrow, acute, as long as the head 

 The pereiopoda are elongated. The femora of the first and second pairs are narrow, linear. 

 The carpal process of the second pair is as long as the metacarpus ; the metacarpus is 

 produced at the apex, forming two sharp processes at the base of the dactylus. The tibia? of 

 the third and fourth pairs are not tumid; the dactyli very long. The fifth and sixth pairs 

 are longer than the third and fourth, the femora are broad, linear. The sixth pair are 

 longer than the fifth; the metacarpus is elongated; the dactylus very long. The femur of the 

 seventh pair is small; the dactylus is much shorter than the metacarpus. The second and 

 third ural segments are coalesced. The hinder corners of the last segment are produced, 

 forming processes shorter than the telson. The peduncles of the uropuda are linear, as 

 long as the rami. The telson is elongate, rounded behind, longer than half the peduncle 

 of the last pair of uropoda. 



Colour. Yellowish white. 



Length. 8—10 mm. 



Hab. Tropical parts of the Atlantic, and the South Atlantic, taken by Captain G. von Scheele, and 

 by the author. (S. M.; U. M.) 



Syn. 1887. Vibilia armata, C. BOVALLIUS. "Systematical list of the Amphipoda Hyperiidea». Bill. t. K. 



Sv. Vet. Akad. Handl. Bd. 11. N:o 16, p. 10. 



Vibilia armata is easily distinguished from its allies by the produced anterior corner 

 of the metacarpus of the second pair of pereiopoda, and by the small femur of the seventh pair. 



The body is broad, robust; the integument is thick and hard. 



The head is almost as long as deep, equalling the first three pereional segments in 

 length, produced anteriorly into a very short obtuse rostrum. 



The eyes are rather large, broadly ovate, consisting each of about 40 ocelli. 



The first pair of antenna? (PI. X, fig. 16) are of the same form as in the two pre- 

 ceding species; the first joint of the flagellum is more than twice as long as the peduncle- 

 The two terminal joints are very minute, almost obsolete. 



