CRUSTACEA. 



19 



insertion of superior antennae; a 2 , base of inferior, ibid.; s, spine, 

 adjoining same ; /, piece of shell, below same ; b', shell of side of 

 head ; e, epistome ; V, labrum ; p, mandibular palpus ; md, man- 

 dible ; m 3 , maxillipeds ; t, lamellar processes of basal joints of 

 same) ; g, side view of head (lettered like the last, with m\ inner 

 maxilla ; m 2 , second maxilla ; I 2 , lower lip ; n, o, parts below base 

 of maxillipeds) ; h, same, with maxillipeds turned down ; I, 

 spinous process at base of inferior antennae (same as s, in figures 

 4 /and g); h, part of flagellum of inferior antenna; I, ibid., of 

 superior antenna ; V , longer flagellum of same, from another 

 specimen ; m, part of leg of first pair ; n, ibid., of fourth pair ; o, 

 ibid., of fifth pair; p, caudal segment. — p. 919. 



Fig. 5 a. Urothoe rostrAtus, enlarged sixteen diameters ; b, 

 upper view of head ; c, part of base of inferior antenna ; d, part 

 of flagellum of same; e, e', mandible, in different positions; /, 

 maxilla of first pair; g, maxillipeds; g', same, more enlarged; h, 

 leg of second pair ; i, ibid., of third or fourth pair ; h, ibid., of 

 fifth pair; I, ibid., of sixth pair; in, ibid., of seventh pair; n, 

 abdominal natatory ; o, extremity of abdomen, upper view ; p, 

 stylets of second pair. — p. 921. 



Fig. 6 a. Urothoe irrostratus, anterior part of body, much 

 enlarged; b, part of flagellum of inferior antenna; c, extremity 

 of leg of fourth pair; d, ibid., of fifth pair; e, extremity of same; 

 /, extremity of body. — p. 922. 



PLATE 63. 



Fig. 1. Stenotiioe validus : a to e, male; /to o, female. — 1 a, 

 male, enlarged nine diameters; b, part of flagellum of superior 

 antenna; c, maxillipeds; d, leg of first pair; e, ibid., of sixth 

 pair. — / female, enlarged nine diameters; g, mandible; h, 

 maxilla of first pair; i, part of maxilla of second pair; lc, maxil- 

 lipeds; /, hand of leg of first pair; m, ibid., of second pair; n, 

 leg of seventh pair ; o, caudal stylets and extremity of abdomen, 

 —p. 924. 



Fig. 2 a. Iphimedia simplex, enlarged six diameters ; b, antenna 

 of superior pair ; c, part of flagellum of same, towards extremity ; 

 d, e, mandible, in different positions ; / inner maxilla ; g, maxil- 

 lipeds; li, leg of first pair; i, ibid., of third pair.— p. 927. 



Fig. 3 a. Iphimedia nodosa, enlarged six diameters ; b, upper 

 view of head. — p. 928. 



Fig. 4 a. Iphimedia fissicauda, enlarged; b, b', views of man- 

 dible! c, d, maxillae; e, maxillipeds; /, caudal extremity; g, 

 branchia, in outline. — p. 929. 



Fig. 5 a. Iphimedia capensis, enlarged eight diameters ; b, part 

 of H^ellum of superior antenna; c, part of palpus of mandible; 

 d, part of leg of first or second pair ; e, ibid., of sixth pair ; /, 

 caudal extremity; g, stylet of first pair.— p. 931. 



Fig. 6 a. Iphimedia pugettensis, anterior part of body, much 

 enlarged; b, mandible; V, part of palpus, ibid.; c, part of maxil- 

 liped; d, hand of second pair; e, third joint of leg of seventh 

 pair; f, extremity of same leg; g, caudal extremity.— p. 932. 



Fi- 7 a. CEdicerus novi-zealandle, male, enlarged eighteen 

 diameters; b, mandible; c, d, maxillae; e, extremity of maxil- 

 liped; /, lip; 9, hand of first pair; h, caudal extremity —p. 934. 



PLATE 64. 



Fig. la. Amphithoe rubella, enlarged eight diameters; o, 

 ibid.,°more enlarged; c, extremity of leg of sixth pair; d, extre- 

 mity of abdomen. — p. 936. 



Fig. 2a. Amphithoe orientalis, head, enlarged; b, leg of first 

 pair; c, ibid., of second pair; d, ibid., of fourth pair; e, ibid., of 

 seventh pair; / posterior caudal stylet, side view. — p. 937. 



Fig. 3 a. Amphithoe tongensis, enlarged five diameters ; b, 

 part of flagellum of superior antenna; c, ibid., of inferior ibid, 

 —p. 939. 



Fig. 4 a. Amphithoe peregrina, enlarged seven diameters ; b, 

 eye. — p. 940. 



Fig. 5 a. Amphithoe brevtpes, female, enlarged three dia- 

 meters ; b, c, side and front views of head (a 1 , a 2 , antennae ; V, 

 labrum ; md, mandible ; m\ m % , maxillae of first and second pairs ; 

 m 3 , maxilliped ; p, mandibular palpus) ; d, posterior caudal sty- 

 let ; e, mandible; /, maxilla of first pair; g, ibid., of second pair; 

 h, maxilliped; i, hand of female of first or second pair; h, extre- 

 mity of leg of first pair, in male; I, ibid., of second pair; m, leg 

 of seventh pair; n, caudal stylet of first or second pair.— p. 941. 



Fig. 6 a. Amphithoe brasiliensis, enlarged four diameters ; b, 

 part of flagellum of superior antennae; c, ibid., of inferior ibid., 

 from basal half; d, ibid., of inferior ibid., from apical half; e, e', 

 mandible, in different positions ; /, maxilla of first pair ; g, ibid., 

 of second pair; h, maxilliped; i, part of leg of first pair; k, ibid., 

 of second pair; I, ibid., of fourth pair; m, outer branch of first 

 pair of stylets; n, posterior stylet.— p. 943. 



PLATE 6 5. 



Fig. 1 a. Amphithoe eilicornis, female, enlarged ; b, part of 

 flagellum of superior antenna; c, mandible; d, leg of second 

 pair ; e, stylet of posterior pair ; /, head and antennae of a young 

 individual; g, leg of fifth pair of same.— p. 944. 



Fig. 2 a. Gammarus asper, enlarged five diameters, antennae 

 and posterior feet mutilated ; b, antenna (part) of superior pair ; 

 c, ibid., of inferior pair ; d, part of leg of second pair ; e, part of 

 palpus of mandible. — p. 945. 



Fig. 3 a. Gammarus suluensis, enlarged six diameters ; b, b' , 

 mandible, in different positions; c, d, inner maxilla, ibid.; d, 

 maxilla of second pair; e, maxillipeds; /, part of flagellum of 

 superior antenna. — p. 947. 



Fig. 4 a. Gammarus albidus, female, enlarged five diameters ; 

 b, c, portions of flagella of antennae; d, hand of second pair, in 

 male.— p. 948. 



Fig. 5 a. Gammarus tenuis, enlarged eight diameters ; b, part 

 of palpus of mandible ; c, hand of first pair.— p. 9-50. 



Fig. 6 a. Gammarus furcicornis, enlarged eight diameters ; b, 

 part of flagellum of superior antennae. — p. 951. 



Fig. 7 a. Gammarus tenellus, enlarged five diameters ; b, part 

 of flagellum of superior antennae; c, hand of first pair; d, leg of 

 sixth pair; e, extremity of abdomen, with stylets of first and 

 second pairs. — p. 952. 



Fi"\ 8 a. Gammarus fuegiensis, enlarged six diameters; b, part 

 of flagellum of first pair; c, appendage of first pair; d, extre- 

 mity of second pair; e, part of leg of first pair; /, ibid., of second, 

 pair; g, ibid., of third or fourth pair; It, caudal extremity, in pro- 

 file._p. 954. 



Fig. 9 a. Gammarus quadrimanus, enlarged ; b, part of flagel- 

 lum of superior antenna; c, extremity of leg of first pair; c', 

 same, of size corresponding to 9 a; d, tarsus of leg of fourth pair; 

 e, leg of seventh pair; / stylet of second pair; g, ibid., of third 



pair. — p. 955. 



Fig. 10 a. Gammarus brasiliensis, male, enlarged eight dia- 

 meters; b, part of flagellum of superior antenna; c, extremity of 

 mandibular palpus; (/, part of leg of fourth pair; e, hand of 



