PobKcni aim MaeFurland. 



Fig. 6ft.— Ventral view of anterior end of animal. 



Fig. 66.— Outer face of mandible.s. x 36. (Cam.) 



Fig. 67. — Inner face of mandibles from behind, x 36. (Cam.) 



Fig. 68.— Longitudinal median section through front of mandibles along line a-h of figure Oe. • 60. (Cam.) 



Fig. 69.— Fourth row of radula. x 83. (Cam.) 



Fig. 70. — Uncinal plates, the outermost rudimentary, x 83. (Cam.) 



Fig. 71.— Armature of glans penis, x 400. (Cam.) 



Fig. 72.— Front view of cutting edges of mandibles, x 3'1. (Cam.) 



Acanthodoris hudsoni MacFarland. 



Fig. 73.— Ventral view of anterior end of animal, x 2. 

 Fig. 74.— Side view of labial armature, x 36. (Cam.) 



Fig. 7ft. — Side view of blade-like processes at ventral portion of labial armature, x 120. (Cam.) 

 Fig. 76.— Dorsal view of blade-like processes of labial armature, x 146. (Cam.) 

 Fig. 77.— Inner face first pleural teeth of second and third rows, x 83. (Cam.) 



Fig. 78. — Outer pleura; shown in their relative position to the tip of the first pleural tooth, x 212. (Cam.) 

 Fig. 79.— Isolated hooks of labial armature, x 263. (Cam. ) 



Fig. so.— v. d., vaginal duct; gl, its glandular portion; a., its proximal loop: sp. th., .spermatotheca; .ip. c. spermator\-i 

 u. d., uterine duct. 



Acanthodoris brnnnea MacFarland. 



Fig. 81.— Labial armature obliquely from in front, with ventral blade-like proces.s. x 52. (Cam.) 



Fig. 82.— Dorsal view of blade-like process, x 120. (Cam.) 



Fig. 83. — Elements of labial armature, a, in side view; b, pointed hook; c, blunt hook. 



Fig. 84. — First pleural teeth of ninth and tenth rows, x 83. i. Cam. ) 



Fig. 8.5.— Second pleural tooth, x 212. (Cam.) 



Fig. 86.— Third pleuraltooth. x 212. (Cam.) 



Fig. 87.— Outer pleural teeth, a, third: b, ninth, x 212. (Cam.) 



Fig. 88.— Reproductive organs from above, rag., vagina; p., penis; t: def., vas deferens; h. amp., hermaphroditic ampulla; 



sp. th., spermatotheca; sp. c, spermatocyst; n. d., uterine duct, x 10. (Cam.) 

 Fig. 88tt. — Relations of vaginal duct ('■«<;.), uterine duct (w. d.), spermatocyst {sp. c), and spermatotheca {sp. th.) from 



below. X 10. (Cam.) 



lacilira MacFarland. 



Fig. 89.— Ventral view of head of animal. 

 Fig. 90.— Elements of labial armature, x 212. (Cam.) 

 Fig. 91.— Upper end of labial armature, x 212. (Cam.) 

 Fig. 92.— Median plates of radula. 



