CKUSTACEA. 



13 



Fig. 6. Penveus tenuis, outline of carapax, enlarged two dia- 

 meters, beak mutilated. — p. 605. 



Fig. 7 a. PenyEUS gracilis, enlarged five and one-half dia- 

 meters ; a', ibid., natural size; b, caudal extremity. — p. 606. 



Fig. 8. Stenopus hispidus, natural size. — p. 607. 



Fig. 9. Stenopus ensifepvUS, enlarged five diameters. — p. 607. 



Fig. 10 a. Eucopia australis, enlarged three and a half dia- 

 meters; b, inner antenna; c, outer antenna; d, under view of 

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

 pair ; h, maxilliped of second pair (or first pair of legs) ; i, ibid., 

 of first pair (or second pair of legs) ; h, next pair ; I, one of the 

 posterior pairs of legs ; m, abdominal appendage of first pair. — p. 

 609. 



PLATE 41. 



Fig. 1 a. Lysiosquilla inornata, natural size ; b, mouth ; c, 

 mandible, enlarged ; d, outline of abdomen ; e, nervous cord. — p. 

 616. 



Fig. 2 a. Squilla rubro-lineata, natural size ; b, part of hand, 

 of larger pair. — p. 618. 



Fig. 3 a. Squilla prasino-lineata, part of abdomen ; b, eye ; 

 c, part of hand. — p. 620. 



Fig. 4 a. Pseudosquilla stylifera, natural size ; b, inner an- 

 tennae ; c, outer antenna ; d, hand ; e, hand of second pair.— p. 

 622. 



Fig. 5 a. Gonodactylus ciiiragra ; b, hand.— p. 623. 



Fig. 6a. Erichthus palliatus, enlarged four diameters; b, 

 natural size ; c, mouth ; d, extremity of leg of first pair ; e, hand 

 of one of the short cheliferous legs.— p. 626. 



Fig. 7 a. Erichthus vestitus, young, enlarged eight diameters ; 

 b, antenna of first pair; c, ibid., of second pair; d, leg of one of 

 the three posterior pairs. — p. 627. 



PLATE 4 2. 



Fig. 1 a. Erichthus spiniger, enlarged six diameters ; b, 

 young; c, caudal segment of young. — p. 629. 



Fig. 2 a. Alima angusta, enlarged four diameters ; b, under 

 view; c, 



maxilliped; d, termination of one of the short feet, 

 near the mouth; e, one of the six posterior thoracic feet; /, one 

 of the abdominal feet.— p. 631. 



Fig. 3 a, b, c. Erichtiiina demissa, young ; d, same, still 



younger. — p. 634. 



Fig. 4 a. Euphausia pelluciua, enlarged ten diameters ; b, eye 

 and base of anterior antenna; c, base of outer antenna; d, part 

 of flagellum of same; d, mandible; e, maxilliped; /, part of a 

 maxilla; g, leg of last thoracic pair; h, extremity of abdomen; 

 i, abdominal leg, with the red spherical gland between the two of 

 a pair; Jc, one of the posterior branchiae; I, ovaries, dissected out 

 and partly mutilated, together with two red spherical glands, of 

 glassy aspect, seen at posterior part of cephalothorax in fig. 4 «; 

 I', part of same, natural size; m, m>, eggs, as taken from the 



ovary.— p. 641. % 



Fie 5 a Euphausia splendens, enlarged six diameters; b, 

 extremity of abdomen; c, leg of fourth pair; d, ibid., of sixth 

 pair; e, branchia of last pair; /, abdominal leg of first pair; g, 

 ibid., of second pair ; h, ibid., of third pair.-p. 642. 



Kg 6 a Euphausia gracilis, enlarged five diameters; b, 

 extremity of abdomen, setules of caudal segment, probably lost 

 by mutilation ; e, branchia of last pair.-p. 644. 



PLATE 4 3. 



Fig. 1 a. Euphausia superba, enlarged two diameters ; b, front, 

 with eyes and base of antennae ; c, caudal extremity ; d, under 

 view of mouth, as covered by the maxillipeds, and showing the 

 extremities of the mandibular palpi ; e, mandible ; /, maxilla ; g, 

 lower lip ; h, shorter branch of abdominal leg of first pair ; A', 

 basal portion of the same leg; h", a process of shorter branch, 

 more enlarged ; h'", ciliated natatory lamina of same ; i, abdo- 

 minal leg of second pair ; Jc, basal portion of thoracic leg of third 

 pair; I, stomach, side view; rn, same, opened longitudinally 

 above and showing inside, the view as seen by transmitted light, 

 the dark parts being thickest ; n, liver and duct ; h', section of 

 same; o, branchia of posterior pair; o', extremity of one of the 

 branchlets of the same. — p. 645. 



Fig. 2 a. Cyrtopia rostrata, enlarged seven diameters ; a', 

 natural size; b, caudal extremity. — p. 648. 



Fig. 3 a. Cyrtopia detruncata, immature ; b, eyes and inner 

 antennae ; c, caudal extremity ; d, part of caudal segment, more 

 enlarged; d, outer antenna; e, extremity of mandible; /, g, 

 maxillae; h, leg of antepenult pair; i, ibid., of penult pair; k, 

 ibid., of last pair; 1, part of liver.— p. 649. 



Fig. 4 a. Promysis orientalis, enlarged fourteen diameters ; b, 

 caudal lamellae, the caudal segment removed ; c, caudal segment ; 

 d, same, oblique lateral view. — p. 651. 



Fig. 5 a. Macromysis gracilis, enlarged six diameters; b, 

 caudal extremity; b', inner caudal lamella; c, base of inner 

 antenna; d, base of outer antenna; e, one of the thoracic legs; 

 /, one of the scales of the ovarian pouch ; g, Ji, i, Jc, I, m, young, 

 in different states. — p. 653. 



Fig. 6 a. Siriella vitrea, enlarged twenty diameters ; b, 

 lateral view ; c, d, mandible, in different positions ; d, maxilla of 

 first pair; e, maxilla of second pair; /, lower lip; g, inner an- 

 tenna ; Ji, outer antenna ; i, leg of first pair ; h, leg of second 

 pair; I, leg of one of six posterior pairs; m, extremity of leg of 

 last pair. — p. 656. 



PLATE 4 4. 



Fig. 1 a. Siriella gracilis, male, enlarged twelve diameters ; 

 b, posterior part of cephalothorax of a female ; c, caudal extre- 

 mity ; d, maxilla of first pair; e, maxilliped; /, leg of first pair; 

 /', fouette, attached at base; g, one of the posterior thoracic legs. 



—p. 658. 



Fig. 2 a. Siriella gracilis (?), male, enlarged twelve dia- 

 meters (length of specimen, four lines) ; b, caudal extremity ; c, 

 part of abdomen, preceding the caudal segment, in profile.— p. 



658. 



Fig. 3a. Siriella brevipes, enlarged twenty diameters; b, 



caudal extremity. — p. 660. 



Fig. 4 a. Loxopis tridens, enlarged eight diameters ; b, head, 

 upper view; c, caudal extremity.— p. 661. 



Fig. 5. Sceletina ARMATA, enlarged twenty diameters.— p. 663. 



Fig. 6. Sceletina laticeps, enlarged twenty-four diameters.— 



p. 664. 



Fig. 7 a. Sceletina orientalis, enlarged ten diameters ; b, 

 dorsal view of carapax; c, caudal extremity; d, palpus or shorter 

 branch of legs. — p. 665. 



Fig. 8 a, b. Raciiitia spinalis, young, enlarged twenty dia- 

 meters; c, caudal extremity.— p. 667. 



Fig. 9 a. Lucifer acestra, male, enlarged four diameters ; b, 

 anterior half, more enlarged ; c, side view of caudal extremity in 



