16 CARL BOVALLIUS, AMPHIPODA HYPEKIIUEA. I. 2. CYLLfUTJDID^K. 



posteriorly dilated; the tibia is about as long as the carpus; the metacai-piis is loiiger 

 than the carpus, armed with short, stiff spines along the anterior margin. 



The seventh pair reach scarcely to the extremity of the femur ofthe precediug pair, 

 having the femur posteinorly dilated and nearly as large as that of the preeeding paii-. 

 The other joints are almost rudimentary. 



The first pair of uropoda reach as far as the extremit)' of the ultimate pair. Tlie 

 rami are as long as the peduncle, minutely serrated on both sides. The second pair are 

 shorter than the preeeding, having the rami longer than the peduncle and serrated on 

 both sides. The ultimate pair having the peduncle reaching to the exti-emit}' of .the rami 

 of the preeeding pair, and having the rami scarcely one-fourth of the length of the peduncle, 

 short, lanceolate, smooth. 



The telson is small, cyliudrical. 



6. CYLLOPUS LUCASI, SPENCE BATE, 1862. 



Oi/llopus Liicasi, Spence Batk. 

 Facsimile from Sp. Bäte, Catal. Aiiiph. Crust. Brit. Museum, pl. 50, fig. 3. 



Diagn. Cajnit leviter rostratum, segmentis tribus piumis pereii longius. Antennw primi paris latitudine 

 fequiter decrescentes, apice curvato. Segmentiim primum ac secundum pereii brevissiiua, 

 segmentum septimum longissimum. Epimera quattuor prima sequentibus paullo altiora. 

 Carpus pedimi pereii primi jjaris latus, serratus, productus, metacarpo longior; metacarpus 

 fortiter serratus. Carpus pedum secundi paris productus, uon serratus, metacarjDO fere longior. 

 Metacarpi pedum quinti ac sexti parium carpis duplo longiores. Pedes septimi paris 

 femore pedum sexti paris breviores; femur post excavatum, articulos sequentes longi- 

 tudine fequans. Latera segmentorum pfe' obtuse rotundata. Segmentum secundum ac 

 tertium itri libera, non coalita. Pedunculus pedum uri primi paris ramis paullo brevior (?): 

 pedunculus pedum secundi paris ramis multo brevior; pedunculus pedum uhimi paris ramis 

 duplo longior, rami serrati. Telson parvum, lanceolatum, quintam partem longitudinis 

 peduncvdi pediun uri vxltimi paris asquans. 



The liead is feebly rostrate, longer than the first three pereional segments. The first jjair 

 of antennee are evenly tapering toward the end, curved at the apex. The first and second 

 ptereional segments are the shortest, the seventh is the longest. The first four pairs of 

 epimerals are a little deeper than the following. The carpus of the first pair of j^:>p»'aopoo'« 

 is broad, serrated, produced, longer than the metacarpus; the metacarpns is strongly ser- 



