892 CRUSTACEA. 



The third pair is very short, recurved, and projects but little beyond 

 the extremity of the abdomen. 



A. humilis, Dana, Proc. Amer. Acad. Sci., Boston, ii. 206. 



Allorchestes AUSTRALIS. 



Antennae \mm 2dis paulo breviores, flagello longiore quam basis, fer me 

 \i-articulato, articulis versus basin transversis. Antenna? 2dce corpore 

 plus dimidio b7*eviores, flagello parce longiore quam basis, \2—\^-arti- 

 culato, articulis plerisque oblongis, setis fere obsoletis. Pedes lmi par- 

 vuli, manu paulo oblong d, basi valde angustioi'e, apice fere recte trun- 

 catd, digito non longiore qua?n manus latitudo. Pedes 2di validi, 

 manu subovatd, palmd inferiore, depressd, angulo postico obsolete setu- 

 ligero, digito longiusculo, carpo inter manum articidumque Stium 

 angustd producto. Pedes sex postici sensim increscentes, setis brevis- 

 simis, articulo 2>tio perlato. 



Superior antennae a little shorter than inferior, flagellum longer than 

 base, about fourteen-join ted, joints towards base transverse. Inferior 

 antennae less than half the body in length, flagellum rather longer 

 than base, twelve to fourteen-jointed, joints mostly oblong, setae 

 nearly obsolete. Hand of first pair of feet quite small, but little 

 oblong, much narrower at base than at apex, nearly direct truncate 

 at apex, finger not longer than breadth of hand. Hand of second 

 pair large subovate, palm depressed, posterior angle with a few 

 minute setae, carpus produced in a narrow process between the hand 

 and third joint, Posterior six feet gradually increase in length, 

 third joint quite broad, setae very short. 



Plate 60, fig. 7 a, animal, enlarged ; b, mandible ; c, d, maxillae ; e, 

 maxillipeds ; /, lower lip ; g, inferior antenna ; h, superior antenna ; i, 

 part of leg of first pair; h, ibid, of second pair; Z, ibid, of fifth pair; m, 

 stylet of first pair ; n, of second pair ; o, of third pair. 



Shores of Illawarra, New South Wales. 



Length, six lines. The head is a little longer than the first thoracic 

 segment. The first three segments of the thorax are shorter than the 



