GAMMARIDEA. 359 



Orchestia (Talitrus) PtJGETTENSIS. 



Feminae:— Corpus Iceve. Epimerce mediocres, 5tce itis vix breviores. 

 Oculi rotundati. Antennae inferiores dimidio corporis non longiores, 

 flagellofere breviore quam basis, articulis numerosis, transversis, setulis 

 semidiametro articuli non longioribus, basi partim scabriculo; supe- 

 riors bad inferiorum triplo breviores. Pedes Imi unguiculati tantum, 

 articulo pemdtimo scabriculo, ungue brevi, dimidii articuli precedents 

 longitudine; 2di manu angusth subeUipticd, digito marginali, longi- 

 tudinals/ere ad apicem manus attingente, articido Mo parce oblongo, 

 dimidio articuli iti longitudine minore, infra arcuato et processu brevi 

 quasi 2-articulato et subacuto armato. Pedes 10 postici numerosis 

 spinxdis setisve brevibus fasciculatis armati sed non scabriculi, setis vix 

 diametri artiadorum longitudine ; Qti Imi subcequi ; bti tertid parte 

 breviores. Styli caudales spinidis numerosis ornati, ramo externo paris 

 Imi nudo. 



Female: — Body smooth. Epimerals of moderate size, fifth hardly 

 shorter than fourth. Eyes round. Inferior antennae not longer 

 than half the body, flagellum hardly as long as base, the joints 

 numerous, transverse, the setules not a semidiameter of joints in 

 length, base partly scabrous; superior pair one-third as long as 

 base of superior. Anterior feet singly unguiculate, penult joint 

 scabrous, claw short, half as long as preceding joint, hand of 

 second pair narrow subelliptic, finger marginal, longitudinal, 

 reaching nearly to apex of hand, third joint sparingly oblong, 

 having a seemingly two-jointed process below, the extremity nar- 

 row and subacute. Ten posterior feet armed with numerous short 

 setae in sets, but not scabrous, the setae hardly as long as breadth of 

 joints; sixth and seventh pairs subequal; fifth one-third shorter. 

 Caudal stylets with numerous setules, outer branch of first pair 

 naked. 



Plate 57, fig. 3 a, female, enlarged; b, part of flagellum of inferior 

 antennae ; c, leg of second pair; d, part of leg of sixth or seventh pair. 



Puget's Sound. 



