363 



Gnatliopoda subequal, and rather feeble, with elongated carpus and narrow, 

 sablinear propodos. Pereiopoda moderately slender, basal joint of the 3 

 posterior pairs not much expanded. Last pair of nropoda with short basal 

 part and broadly lanceolate subequal rami. Telson of moderate size, un- 

 armed, entire or slightly insinuated at the tip. Sexual difference very slight. 

 BemarJcs. — The family is here taken in the same restriction as 

 adopted by Boeck in his great work on the Northern Amphipoda. I formerly ' ) 

 also combined with this family the subfamily IphimedincB of Boeck, on account 

 of the unmistakable resemblance as to the external appearance. Considering, 

 however, the materially different structure of the oral pai'ts and of the 

 gnathopoda, I now find it more suitable to keep both families apart. From 

 the family Paramphithordre, the present one chiefly distinguishes itself by the 

 different mutual relation of the 2 pairs of antennae, the characteristic form of 

 the coxal plates, the rather different appearance of the anterior and posterior 

 lips, and finally, by the structure of the gnathopoda and of the last pair of 

 uropoda. Besides the 2 genera described in the sequel, the germs J canfhechin//.'^ 

 of Stebbing ought, in my opinion, to be referred to this family, and not, as 

 proposed by that author, to the Iphimedidce. 



Gen. 1. Epimeria, Costa, 1851. 



Syn. : Acanthonotus, Sp. Bate (part.) 



Body rather stout and tumid, having some of the segments raised 

 dorsally to laminar posteriorly pointing projections. Cephalon produced in 

 front to an acuminate, more or less curved rostrum, lateral corners nearly 

 obsolete, postantennal ones forming a rather deep, deflexed, linguiform lobe 

 obtecting the basal joint of the inferior antennae. The 3 anterior pairs of 

 coxal plates narrow, tapering to a point; 4th and 5th pairs very large and 

 projecting laterally, the former much deeper than any of the others, with 

 the outer part falciform curved, and the posterior projection rather produced; 

 the latter exserted at the infero-posteal corners to a more or less projected 

 mucroniform process. Eyes rather convex, with the visual elements less 

 distinctly developed. Antennae of moderate length and not very unequal, fla- 

 gellum of both pairs very flexible, and composed of numerous short articula- 

 tions. Mandibles moderatelj^ strong, cutting edge coarselj^ dentated, molar 

 expansion comparatively small, though normally developed, palp about the 

 length of the mandible. First pair of maxillae with the masticatory lobe 



') Oversigt af Norges Orustaceer I. 



