NO. 2063. NORTH AMERICAN PARASITIC COPEPODS— WILSON. 725 



antenna. Fig. 195, same, different view. Fig. 19G, first maxilla. Fig. 197, maxil- 

 liped. Fig. 198, longitudinal section of male; e, blind end of intestine; /(;, frontal 

 gland; ig and sg, infra- and supra- esophageal ganglia; gc, gland cells; mp, maxilli- 

 pedal gland; oe, esophagus; s, stomach; sp, spermatozoa; sph, spermatophore; stc, sper- 

 matocyte; stg, spermatogonia; t, testis. Fig. 199, first and second antennae of male. 



Plate 52. 



Female of Clavellisa spinosa, and female and male of Clavellisa cordata. 



Fig. 200, ventral view of cephalothorax and dorsal view of trunk of C. spinosa. 

 Fig. 201, ventral view of female of C. cordata. Fig. 202, side view. Fig. 203, antennae 

 and mouth parts. Fig. 204, first antenna. Fig. 205, second antenna. Fig. 206, 

 mandible. Fig. 207, maxilliped. Fig. 208, side view of male. 



Plate 53. 



Female and male of Brachiella thynni and of B. gulosa. 



Fig. 209, side view, B. thynni. Fig. 210, dorsal view of trunk. Fig. 211, second 

 antennae and first maxillae. Fig. 212, second antenna, enlarged. Fig. 213, maxil- 

 liped. Fig. 214, side view of male. Fig. 215, antennae and first maxillae. Fig. 216, 

 posterior trunk of B. gulosa, showing genital process. Fig. 217, first maxilla. Fig. 218, 

 maxilliped. Fig. 219, side view of male. Fig. 220, first and second antennae, after 

 sketch by M. T. Thompson. 



Plate 54. 



Females of Brachiella gulosa and B. mitrata, and female and male of B. elegans. 



Fig. 221, side view, B. gulosa. Fig. 222, antennae and mouth parts. Fig. 223, 

 second antenna, enlarged (from M. T. Thompson). Fig. 224, mandible. Fig. 225, 

 antennae and mouth parts of B. mitrata. Fig. 226, first antenna of B. elegans, female. 

 Fig. 227, second antenna, both antennae by M. T. Thompson. Fig. 228, first maxilla. 

 Fig. 229, maxilliped. _ Fig. 230, side view of male of B. elegans. Fig. 231, first and 

 second antennae by M. T. Thompson. Fig. 232, first maxilla. Fig. 233, claw of 

 second maxilla. 



Plate 55. 



Females of Brachiella elegans and B. mitrata, and female and male of B. pinguis. 



Fig. 234, side view, B. elegans. Fig. 235, side view, B. mitrata. Fig. 236, first 

 antenna. Fig. 237, first maxilla. Fig. 238, maxilliped. Fig. 239, first antenna and 

 first maxilla of B. jnnguis. Fig. 240, second antenna. Fig. 241, maxilliped. Fig. 

 242, side \'iew of male B. pinguis. Fig. 243, first antenna. Fig. 244, second antenna. 



Plate 56. 



Females of Brachiella pinguis, B. nitida, and Parabrachiella rostrata. 



Fig. 245, side view, B. pinguis. Fig. 246, side view, B. nitida. Fig. 247, antennae 

 and mouth parts. Fig. 248, maxilliped. Fig. 249, side view, P. rostrata. Fig. 250, 

 antennae and mouth parts, drawn by R. Rathbun. Fig. 251, second antenna. Fig. 

 252, mandible. Fig. 253, first maxilla. Fig. 254, second maxilla of male. Fig. 255, 

 maxilliped of male. 



