EEVISION OF L.M.B.C. AMPHIPODA. 417 



I. C. T., Mr. Isaac C. Thompson, F.L.S. 



F. A., The late Frank Archer, Esq. 



The spechnens from Galley Head, which is in the Irish 

 Channel but not in the L.M.B.C. district, were taken by 

 Mr. K. L. Ascroft in trawl refuse or in a tow-net attached 

 to the trawl beam. 



Of the species recorded the following are new to science, 

 viz., Nannonijx spinimanus, AmpJdlochus melanops, Plio- 

 tis poUex, and Podocerus herdmani (P. odontonijx, Sars). 

 The following are, or were when I first published them, 

 new to the British Fauna : Orchomenella ciliata, Nan- 

 nonyx goesii, Harpinia IcBvis, H. crewulata, Metopa 

 hruzelii, M. pusilla, Paratijlus falcatus, P. iincinatus, 

 Gammaropsis nana, Ischyrocerus minutus, and Siplion- 

 oecetes colletti ; the last, however, has probably been 

 recorded as S. typicus, Kroyer which Sars considers to 

 be distinct. 



It must be understood that the present list supersedes 

 all previous records of Amphipoda in the L.M.B.C. Keports 

 both as to species and localities. 



In the notes on the species I make use of the following 

 abbreviations : — 



ace. app. = Accessory appendage of upper antennae ; 

 a?i^.^=^ upper or first antennae; a^^^.^ = lower or second 

 antennae ; carp. = carpus, wrist, fourth joint ; dact. = dacty- 

 lus, finger, sixth and last joint; ^/?. = flagellum of ant.; 

 G^i.^=^ first gnathopods, first pair of feet; G?i'.2 = second 

 gnathopods, second pair of feet; iUc^Z. = Mandible ; Max.^ 

 = first maxillae ; Max.^ = second maxillae ; Mxps. = maxil- 

 lipedes ; ped. = peduncle ; per. = peraeon, mesosome ; 

 _prj9.^~'^=-- first to fifth peraeopods, third to seventh pairs of 

 feet; _p/. =pleon, metasome ; ^ro^.=propodos, hand, fifth 

 joint ; post. = posterior ; seg. = segment ; t. = telson ; ■up.^~'^ 

 = first to third pair of uropods. 



