PLATE XVHI. 

 ArchiHoris montereyensU (Cooper) Bergh. 

 ¥ui. 1.— Outer pleur» of fourteenth row. x VIO. (Camera lucida.) 

 Fig. 2.— Inner pleurae of eighth row. x 120. (Cam.) 



Fig. 3.— Inner face of twelfth pleural tooth of fourth row. x 120. (Cam.) 



F;g. i,—v. d., vaginal duct; sp. th., spermatotheca; sp. c, spermatocyst; u. d., uterine duet, x 10. (Caui.) 

 Fig. 5. — Ventral view of anterior end of animal, life size. 



Anisodoris nobitOs (MacFarland). 

 Fig. 0.— Ventral view of anterior end of animal, life size. 

 Fig. 7.— Outer pleunt!. ,■: 83. (Cam.) 

 Fig. 8.— Pleurse from middle of row. x 52. (Cam.) 

 Fig. 9.— Inner pleura; of eleventh row. x 83. (Cam. ) 



Fig. 10.— Outer face of innermost pleural tooth of seventh row. x 83. (Cam.) 

 Fig: 11.— Inner face of large pleural tooth from middle of row. x 52. (Cam.) 



Discodoris heatki MacFarland. 



Fig. 12.— Ventral view of anterior end of animal, x 4. 



Fig. 13. — inner pleurse of thirteenth and fourteenth rows, x 14fi. (Cam.) 



Fig. 14.— Inner face of typical pleural tooth. x83. (Cam.) 



Fig. 1.5.— Labial armature flattened out. x 30. (Cam.) 



Fig. Iti. — V. dej'., vas deferens: pr., prostate gland; sp. d., spermatic duct; or., oviduct; /(. a., hermaphroditic ampulla; li. 



hermaphroditic duct. 

 Fig. n.—vag. d., vaginal duct; sp. th., spermatotheca; sp. c, spermatocyst; u. d., uterine duct. 



Rostanga pulehra MacFarland. 

 Fig. 18.— Inner pleurfe of 3 rows slightly displaced, a, innermost pleural tooth, x 400. (Cam.) 

 Fig. 19.— Isolated pleural teeth seen at various angles, x 400. (Cam.) 

 Fig. 20.— Outer pleural teeth, a, thirtieth tooth; 6, front view of an outer tooth; r, ';../■, di.slal ends, and e. side view 



outermost teeth in row. x 400. (Cam.) 

 Fig. 21.— Labial armature from above, a, anterior margin, x 400. (Cam.) 

 Diaulula sandiegensis (Cooper). 

 Fig. 22.— Five innermost pleura, x 83. (Cam.) 

 Fig. 23.— Si.-c outermost pleura;, x 83. (Cam.) 



Fig. 24.— Front view of pleural tooth from middle of row. x 120. (Cam.) 

 Aldisa sanguinea (Cooper). 

 Fig. 25.— Bases of nineteenth to thirty-second pleural teeth, x 120. (Cam.) 

 Fig. 26.— n, distill end of thirteenth pleural tooth; 6, basal ends of four pleural teeth, x 146. (Cam.) 



Cadlina marginalc. MacFarland. 

 Fig. 27.— Hooks of labial armature, x 400. (Cam.) 



Fig. 28.- a, rhachidian tooth; b, first pleural teeth of nineteenth row: x 400. (Cam.) 

 Fig. 29.— Twelfth pleural tooth, x 400. (Cam.) 

 Fig. 30.— Outermost pleurae, x 400. (Cam.) 

 Fig. 31.— Outermost pleurae, fifty-third row. x 400. (Cam.) 



