KONGL. SV. VET. AKADEM1ENS HANBLINGAR. BAND. 21. N:0 5. 



47 



metacarpi are richly provided with long hairs. The third and fourth pairs are only a little 

 shorter than 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 much shorter than the fourth pair but longer than half the sixth. 



The pleon 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. 73, pi. 30, fig. 3 a). 



The second and third ural segments are distinct, the third more 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 produced. 



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

 rami are indistinctly serrated. 



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



2. VIBILIA JEANGERARDI, LUCAS, 1845 



PI. VII, fig. 1—11. 



Diagn. Caput rostratum, segmentis duobus primis pereii brevius. Flagellum antennarum primi paris 

 ante obtuse rotundatum, capite paullo longius. Pedes pereii curti, robusti, non hirsuti; pedes 

 primi paris non subchelifbrmes, carpus metacarpo brevior. Carpus secundi paris meta- 

 carpi longitudinem aequans. Tibia? pedum tertii ac quarti parium non tumidae, carpis longi- 

 tudine aequales; dactyli dimidio metacarporum breviores. Pedes tertii ac quarti parium 

 pedibus quinti paris paullo breviores. Femora pedum quinti ac sexti parium laminata, 

 ovata; dactyli brevissimi. Pedes sexti paris pedibus quinti longitudine jequales. Segmentum 

 secundum et tertium uri libera non coalita. Anguli postici segment! ultimi non product!. 

 Pedunculi pedum uri lati, lineares, rainis longiores. I'elson rotundatum, dimidio peduncnli 

 ultimi paris pedum uri brevius. 



The head is rostrate, shorter than the first two pereional segments. The flagellum of the 

 first pair of antenna; is obtusely rounded anteriorly, a little longer than the head. The 

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

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

 The tibia? of the third and fourth pairs are not tumid, as long as the carpi; the dactyli 

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

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

 very short. The sixth pair are as long as the fifth. The 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 the peduncle of the last pair of uropoda. 



Colour. Yellowish. 



Length. 9—14 mm. 



Hab. The Atlantic, The Mediterranean. (D. M.; S. M.; U. M.) 



