ORCHESTID.E. 13 



6. Orchestoidea Pugettensis. (Platk II. fig. 3.) 



Orchestia (Talitriis) Pugettensis, Datia, U.S. Explor. ErpeiJ. p. 859, 

 pi. 57. f. 3. 



'•' Female. — Body smooth. Coxae 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 inferior. Anterior feet simply unguioidate, penult joint 

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

 second pair narrow subelliptic, dactylos marginal, longitudinal, 

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

 ha\-ing a seemingly two-jointed process below, the extremity 

 narrow and subacute. Ten posterior feet (pereiopoda) armed 

 with numerous short setae in sets, but not scabrous, the setae 

 hardly as long as breadth of joints ; fourth and fifth pairs of 

 pereiopoda subequal ; third pair of pereiopoda one-third shorter. 

 Caudal stylets with numerous setxdes, outer branch of. first pair 

 naked. 



" Len^h eight lines." 



Ihih. Puget's Sound (Dmm). 



6. Orchestoidea Brasiliensis. (Plate II. fig, 4.) 



Orchestia (Talitrus) Brasiliensis, Dana, U.S. Explor. Exped. p. 757, 

 pi. 57. f. 2. 



" Feinale. — Body smooth. Inferior antennae not half as long as the 

 body; flagellum hardly as long as the base, about sixteen- 

 jointed, joints slightly oblong, setae few, hardly as long as dia- 

 meter of joints; superior pair very short, half shorter than base 

 of inferior, flagellum three-jointed. Feet with short setae, those 

 of fifth (propodos) joint of three posterior pairs not longer than 

 diameter of joint ; first pair of gnathopoda longer than second, 

 ending in a curved claw, which is a little shorter than preceding 

 joint ; propodos of second pair scmiovate, the upper margin straight ; 

 minute dactylos ending remote from apex, longitudinal in posi- 

 tion, meros half shorter than fom-th carpus, rectangulate below ; 

 third pair of pereiopoda half shorter than the fourth, fourth 

 and filth pairs of pereiopoda subequal, sixth joint qiute narrow, 

 the setules of upper and under margins about equal, and in six or 

 seven sets. 

 " Male. — First pair of gnathopoda as in f«'male ; second with a 

 large propodos, which is subovate, the palm ending in a low angle, 



