KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 21. N:0 5. 



47 



metacarpi are richly provided with long hairs. The third and fourth paii\s are only a little 

 shorter thaii the fifth; the sixth pair are longer than the fifth. All joints, with the exception 

 of the narrow femora, are provided with long hairs. The seventh pair have laminar, broadly 

 ovate femora; they are raiich shorter than the fourth pair hut longer than half the sixth. 



The jfj/eo?z is scarcely longer than the last three pereional segments. The hinder 

 corners of the lateral parts of the third segment are produced backwards, broadly rounded. 



The peduncles of the pleopoda are very large, provided with a small tubercular 

 appendix at the base of one of the rami (?) (1. c. p. 7.3, pl. 30, fig. 3 a). 



The second and third ural segments are distinct, the third inore than twice as long 

 as the second; the first is longer than the two following together. The hinder corners 

 of the last segment are feebly rounded, not ])roduced. 



The peduncles of the uropodn are long, narrow, linear, longer than the rami; the 

 rami are indistinctly serrated. 



The telson is large, rounded, longer tlian half the peduncle of the last pair of uropoda. 



2. VIBILIA JEANGERARDI, TT CAS, 1845 



Pl. VII, lig. 1—11. 



Diagn. Caput rostratum, segmentis duobiLS primis pereii brevius. Flagellum antennarum priini paris 

 ante obtuse rotundatiim, capite paullo longius. Pet/e,s pemi ciirt i, robusti, non hirsuti; pedes 

 primi pari.s non snbchelit'ormes, carjnis nietacarpo brevior. ('arpus secundi paris meta- 

 carpi lougitudinem luquans. Til)ia' [)edani tertii ac quarti pariuni uou tumida', carpis longi- 

 tudine ajquales; dactyli diuiidio inctacarporuin breviores. Pede.s tertii ac quarti pariuin 

 pedibus quinti pari.'^ j)aullo brcviores. Femora peduni quiuti ac .^exti parium laminata, 

 (jvata; dactyli brevis.siini. Pedes sexti paris pedibus quinti longitudiiic a^quales. Segmentum 

 secundum et tertium iiri libera non coalita. Anguli postici segmenti ultimi non producti. 

 Pedunculi pedum \\y\ hiti, lineares, ramis longiores. Tehoii rotundatum, dimidio peduncuH 

 ultimi paris peduni uri Iirovins. 



The head is rostratc, shorter tiian tlic first two pereional segments. The flagellum of tlie 

 first pair of antennoi is obtusely rounded anteriorly, a little longer than tlie head. The 

 pereiopoda are short, robust, without hairs; the first pair are not subcheliform, the carpus is 

 shorter than the nietacarpns. The carpus of the second jjair is as long as the metacarpus. 

 The tibi;"e of the third and fourth [lairs are not tumid, as long as tiie carpi; the dactyli 

 are shorter than half the metacarpi. The third and fourtli pairs are a little shorter than 

 the fifth. The femora of the fifth and sixth pairs are iaminate, ovate; the dactyli are 

 very short. The sixth pair are as long as the fifth. Tlie second and third ural segments 

 are free, not coalesced. The hinder corners of the last segment are not produced. The 

 peduncles of the uropoda are broad, linear, longer than the rami. The telson is rounded, 

 shorter than half tiic [leduncde of tiii? last pair of urojioda. 



Colour. Yellowish. 



Length. 9—14 mm. 



Hab. The Atlantic, The Mediterranean. (U. M.: S. M.: U. M.j 



