888 



CRUSTACEA. 



jointed; of the inferior antennae about fourteen-jointed, the joints 

 sparingly oblong. Length, four lines. 



Among sea-weed, on the shores near Valparaiso. 



Fig. 3 a, animal, enlarged; b, c, d, e, e', parts of the mouth; /, part 

 of flagellum of inferior antennae.— #, from another specimen ; h, ibid., 

 part of flagellum of inferior antennae ; % ibid., hand of second pair ; h, 

 extremity of seventh pair. 



Kroyer has described an Orchestia from the beaches of Valparaiso 

 under the name 0. grandwornis (Tids., [2], i. 283, 1844), which 

 appears to be an Allorchestes, and near our species, though still differ- 

 ing from it. The superior antennae are one-third, and the inferior 

 one-fifth the length of the body. The flagellum of the inferior an- 

 tennae has nine oblong joints; of the superior, twelve joints; the 

 former is less naked than the latter. The eyes are large and nearly 

 confluent in front. The hand is large, oval, and " ad basin marginis 

 postici tuberculo armata 2-aculeato, nullis vero unguis validissimi 

 dentibus." 



A. peruviana, Dana, Proc. Amer. Acad. ScL, Boston, ii. 206. 



Allorchestes hirtipalma. 



Antennce Irnce tenuissimw, inferioribus paulo breviores, basi perbrevi. 

 Antennas 2dce corpore plus dimidio breviores, flagello plus duplo lon- 

 giore quam basis, infra densh breviter villoso, articulis non oblongis. 

 Pedes lmi parvuli, manu magna, oblongd, basi angustiore, infra sub- 

 tiliter ciliatd, apice oblique truncatd. Pedes 2di validi, manu sub- 

 ovatd, infra subtruncatd et dense villosd, palmd paulo depressd, recti- 

 usculd, digito sat longo. Pedes 4 ultimi subaequi, setis paucis minutis- 

 simis, semidiametro articuli 5ti brevioribus, apicibus articulorum %tii 

 Clique paido productis et setulosis. 



Superior antennae very slender, a little shorter than inferior, base 

 very short. Inferior pair somewhat shorter than half the body, 

 flagellum more than twice as long as base, lower side densely short 



