886 CRUSTACEA. 



Amphithoe Gaimardii? Edwards, Crust., iii. 37. The description by Edwards 

 agrees with our specimens in most points, though differing in making the posterior 

 stylets end in two rudimentary branches, instead of one. 



2. Antennarum Idarum flagellum, basi longius. Antennae lmas basi Idarum multo 



lonyiores. 



Allorchestes VERTICILLATA. 



Epimerce mediocres. Antennae, 2dw Imis fere duplo longiores, tertid 

 parte corporis non longiores, basi brevi, artiadis basis ultimo penulti- 

 rnoque subwquis, flagello fermh duplo longiore quam basis, 14:-articu- 

 lato, articulw parce oblong is, setis densd verticUlatis, brevibus, diametro 

 articidorum non longioribus. Antennce lmo3 nudiusculm. Pedes \mi 

 parvuli, carpo infra non producto, manu oblongd, basi vix angustiore, 

 apice obliquo. Pedes 2di pervalidi, manu subovatd, palmd inferiore, 

 rectiusculd, pubescente, digito longo ; carpo inter manum articuhimque 

 §tium infra non producto. Pedes 5ti Qti Imique snbwqui, breves, setis 

 paucis sparsis, crassis, diametro articuli non longioribus, margine arti- 

 culi bii super no nudo. Tarsus setd infra instructus. 



Epimerals of moderate size. Inferior antennae nearly twice longer 

 than superior, about one-third as long as the body, base short, last 

 two joints of base subequal, flagellum about twice longer than base, 

 fourteen-jointed, joints slightly oblong, setae densely verticillate, short 

 (not longer than breadth of joints) . Superior antennae nearly naked. 

 Feet of first pair quite small, hand oblong, hardly narrower at 

 base, oblique at apex, carpus not produced below. Hand of second 

 pair large subovate, palm along inferior side, nearly straight, pubes- 

 cent, finger long, carpus not produced downward between hand and 

 third joint. Fifth, sixth, and seventh feet subequal, short, setae 

 few, stout, short, not longer than diameter of joint, upper margin of 

 fifth joint naked. Tarsus with a seta below. 



Plate 60, fig. 2 a, animal, enlarged ; b, part of flagellum of antenna 

 of second pair ; c, mandible ; d, second pair of maxillae ; e, maxilli- 

 peds; /, extremity of leg of first pair; g, ibid, of posterior pair. 



Along the shores near Valparaiso. 



