STO.1653. PACIFIC COAST COPEPODS WILSON. 47c) 



Plate LXVII. 

 The male and female of Pseudochondracanthns diceraus. Dew species. 



Pig. 11. Adult female, dorsal view. Fig. 12. Bead and firsl thorax segment, 

 ventral view, showing the firsl antenna (a), the second antenna (a'), the 

 mandibles (md.), the maxilla; (ma?.), the inaxillipeds (mxp.), and the Brsl 

 swimming legs 1/1. Fig. 1:;. Mandible .-md maxilla, dorsal surface. Fig. II. 

 Maxilla, ventral surface. Fig. 15. Maxilliped, ventral surface. Fig. 16. Lai 

 era I view of the male. Fig. 17. Moutb parts of male, sin .win- upper lip in. I.), 

 mandible (md.), and maxilla (ma?.). Fig. 18. Maxilliped of male. 



l'i vii: I. XVI II. 



Tlic female of Lepeophtheirus parvus, aew species. 



Fig. 19. Dorsal view of female. Fig. 20. Second antenna and 8rs1 maxilla. 

 Fig. 21. Mouth tube and second maxilla', l'i-. 22. Furca. Fig. i':;. Second 

 maxilliped. Figs. 24 to 27. First, second, third, and fourth swimming legs. 



PLAT] I. XIX. 



The female of Lepeophtheirus bonstrictus, new species. 



l'i-. 28. Dorsal view of female. Fig. 29. Second antenna and first maxilla. 



Fig. •':<». Sec 1 maxilla. Fig. 31. Furca. Fig. .".1'. Second maxilliped. Figs. ."..". 



to 35. First, third, and fourth swimming legs. Fig. 36. Ventral view of genital 

 segmenl and abdomen, showing the rudimentary fifth legs. 



PLAT) i.xx. 



The Tenia le of Lepeophtheirus insignis, new species. 



Fig. .'IT. Dorsal view of female. Fig. 38. Second antenna. Fig. 39. Moutb 



lube and second maxilla. Fig. 10. Furea. Figs. 11 to 13. First, second, and 



third swimming legs. Fig. 11. Ventral surface of genital segmenl and abdo n. 



showing cemenl glands (c. g.), spermatophores (s.), and rudimentary lit'tli and 

 sixth legs. Fig. r>. Month tube and second maxilla of male. Fig. n;. Second 

 maxilliped of male. Fig. it. Fourth swimming leg of male. Fig. 18. Ventral 



surface of genital Segmenl Of male, showing partial separation of a sixth 



segment. 



Plate i.XXi. 



The male and young female of Lepeophtheirus insignis, new species. 



Fig. in. Dorsal view of male. Fig. 50. Second antenna and firsl maxilla of 



male. Fig. 51. Dorsal view of young female. Fig. ~>\1. Second antenna ami 



Brsl maxilla of .some. Fig. 53. Furca, the branches jusl starting. Fig. 54. 



.Month tube and second maxilla: contrast the latter with those of the adult in 

 fig. 39. Fig. 55. Furca of a little older female. 



Plati i.xxi 1. 



The male and female of Trebius tenuifurcatus Rathbun. 



Fig. 56. Dorsal view of female. I'i-. 57. Second antenna and tirsl maxilla. 

 Fig. 58. Month tube and second maxilla-. Fig. 59. Furca. Fig. 60. Firsl max- 

 illiped. Fig. 61. Second maxilliped. Figs. 62 to «;.",. First, second, third, and 



