60 CARL BOVALLIUS, AMPHIFODA HYPERIIDEA. VIBIL1D.E. 



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



The rami of the pleojjocla are 13-jointed. 



The urus is a little longer than the last pleonal segment; the first segment is much 

 longer than the two following together; the second is shorter than half the third. The 

 hinder corners of the third segment are broadly rounded, not produced. 



The uropoda (PI. VIII, fig. 24 and 25) have the peduncles much longer than the rami. 

 The first pair with the peduncle tolerably broad, linear, serrated along the outer margin; the 

 rami are equal in length, lanceolate, more densely serrated along the outer margins than 

 along the inner. The peduncle of the second pair is a little narrower, linear, smooth; 

 the rami are lanceolate, the exterior is a little shorter than the interior, sparingly serrated; 

 the interior ramus is strongly serrated along the outer margin and sparingly along the 

 inner. The peduncle of the third pair is broad, as long as the last two ural segments 

 together; the rami are equal in length, the exterior smooth on the outer margin, finely 

 serrated along the inner, the interior ramus is smooth on the inner margin and finely 

 serrated along the outer. 



The telson is broad, rounded, a little shorter than the last ural segment, longer than 

 half the peduncle of the last pair of uropoda. 



9. VIBILIA LONGIPES, C BOVALLIUS, 1887. 



PI. VIII, fig. 26—32. 



I) i sign. Caput non rostratum, segmentis duobus primi pereii brevius. Oculi modici. Flagellum an- 

 tennarum primi paris ante rotundatum, caput longitudine a^quans. Peeler pereii valde elon- 

 gati, nou hirsnti. Femora pedum primi et secundi parium lata, ovata, carpi metacarpis 

 longiores. Processus carpi pedum secundi paris dimidio nietacarpi longior. Tibiae pedum 

 tertii ac quarti parium non tumidse; dactyli modici. Pedes quinti ac sexti parium pedibus 

 tertii ac quarti parium duplo fere longiores, femora lata, ovata; dactyli modici. tegmentum 

 secundum ac tertium uri libera, non coalita. Anguli postici segmenti ultimi non product!. 

 Pedunculi pedum uri ramis longiores. Telson latum, triangulare, dimidio pedunculi ultimi 

 paris pedum uri longior. 



The head is not rostrate, shorter than the first two pereional segments. The eyes are middle- 

 sized. The flagellum of the first pair of antenna; is anteriorly rounded, as long as the head. The 

 pereiopoda are very elongated, not hirsute. The femora of the first two pairs are broad, 

 ovate; the carpi are longer than the nietacarpi. The carpal process of the second pair is 

 longer than half the metacarpus. The tibia' of the third and fourth pairs are not tumid; 

 the dactyli are rather small. The fifth and sixth pairs are almost twice as long as the third 

 and fourth; the femora are broad, ovate; the dactyli are middle-sized. 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 longer than the rami. The telson is broads 

 triangular, longer than half the peduncle of the last pair of uropoda. 



