XLIV ILLUSTRATIONS. 



Page. 

 FIG. 542. Munna ca?ca. First leg 485 



543. Munna c?eca. Second leg 485 



544. Munnopsis typica (After Harger). a, Dorsal view of male, b, Max- 

 illipeds (///, Basal segment; 1, external lamella; 2 and 3, second 

 and third segments of palp) . c, Second maxilla, d, First max- 

 illa, e, Second leg of male. /, One of natatory legs, g, Oper- 

 culum 487 



545. Munnopsis typica (After G. O. Sars). a, Upper lip. b, Lower lip. 

 c, First antenna, d, Part of second antenna, e, End of man- 

 dibular palp. /, Left mandible, g, Tip of left mandible. It, First 

 maxilla. /, Second maxilla, j, Right mandible, k, Dorsal view 

 of male. I, Dorsal view of female. /, Lateral view of female. 

 n, Uropod. o, Female operculum 488 



546. Munnopsis typica (After G. O. Sars). a, Maxillipeds. b, Head 

 (ventral view), c, First leg of male, d, Second leg of male. 

 e, Ventral view of male. /, First antenna of male, g, Second 

 leg of female. h, Extremity of third leg. /, First and second 

 pleopods of male, j, Third leg of male, k, Fifth leg of male. 

 /, Third pleopod of female 489 



547. Eurycope cornuta (After Harger). Female, a, First antenna. 



b, Maxilliped. c, Mandible, d, First leg. d', Propodus and 

 dactylus of same, e, Propodus and dactylus of second leg. 



/, Sixth leg. g, Uropod 492 



548. Eurycope caribbea 494 



549. llyarachna hirticeps (After Sars). a, Mandible, b, Dorsal view 

 of female, c, Maxillipeds. d, Second antenna, e, First antenna. 

 /, Second antenna, g, Second leg. h, First leg. /, Third pleo- 

 pod. j, Ventral view of female, k, Fourth pleopod. I, Abdo- 

 men (ventral view), m, Fifth pleopod. n, Uropod. o, Fifth leg. 



p, Seventh leg 496 



550. Phryxus abdominalis (After Sars). a, Leg of male, b, Specimen 

 of Spirontocaris lilljeborgii infested with parasite, e, Male (dor- 

 sal view), d, Dorsal view of female, e, First leg of female. 

 /, Head of male (ventral view), g, Fourth leg of female. 

 h, Ventral view of female. /, Last segment of abdomen of 

 female, j, Right part of body of female, k, Same (ventral side). 



I, Maxillipeds. t, Fifth to seventh rudimentary legs 501 



551. Phryxus abdominalis. Abdomen of male from specimens found 

 on: o, Pandalus leptocerus from off Block Island, b, Pandalus 

 leptocerus from Marthas Vineyard, c, Pandalus leptocerus from 



off Block Island ". 502 



552. Phryxus abdominalis. Abdomen of male from specimens found 

 on: a, Spirontocaris groenlandicus from Admiralty Inlet, vicinity 

 of Port Townsend. b, Pandalus leptocerus from off Block Island. 



c, Spirontocaris sica from off San Luis Obispo Bay, California. 



d, Spirontocaris sica from off San Simeon Bay, California 502 



553. lone brevicauda (After Bonnier). , Dorsal view of adult female. 



b, Dorsal view of male, c, Ventral view of female, d, First 

 incubatory lamella, e, Ventral view of head of female (right 

 maxilliped removed) . /, Buccal rostrum and antennae of female. 

 g, Abdomen of female (dorsal view) . h, Extremity of maxilliped. 

 i, Leg of female, j, Longitudinal section of ventral portion of 

 first incubatory lamella, k, Head of male (ventral side) 506 



