276 CALIFORNIA ACADEMY OF SCIENCES. [PROC. 3D Ser. 



EXPLANATION OF PLATE XIV. 

 Ocnerodrilus ( Enicniodrilus ) tuberculatus, sp. nov. 



Spermatiieca. 



The penial tubercle in somite XVII, showing the junction of the 

 sperm-ducts and the prostate. 



Ocnerodrilus (Ilyogenia) taste (Eisen). 

 One of the spermathecse. Partly in optical section but showing 



the irregular swelling at the apex. 

 Section of the body-wall passing through the male pore, showing 

 the total absence of prostates. 

 Ocnerodrilus ( Enicinodrilus ) mexicanus, sp. nov. 

 Fig. 159. Spermatheca. 



Notiodrilus crisialifer, sp. nov. 

 Fig. 160. Spermatheca. 

 Fig. 161. The longer penial seta. 

 Fig. 162. The apex of the shorter penial seta. 



Notiodrilus IVkitmani, sp. nov. 

 Fig. 163. The prostate and the sacs of penial setae. 

 Fig. 163a. Apex of a penial setae. 

 Figs. 164, 165. The two anterior spermathecse. 



Figs. 166, 167. The two anterior spermathecse from the same specimen as 

 the last. 



Benhamia jamaicce, sp. nov. 

 Fig. 168. Spermatheca. 

 Fig. 169. Apex of two penial setse from the same sac. 



Benhamia papillata Eisen, hawaiiensis, var. nov. 

 Fig. 170. A spermatheca. 

 Fig. 171. Another spermatheca from the same specimen as the last. 



Benhamia guatemalcs, sp. nov. 

 Fig. 172. Spermatheca. 



Fig. 173. Another spermatheca from the same specimen as the last. 

 Fig. 174. Apex of a penial setse. 



Benhamia viridis, sp. nov. 

 Figs. 175, 176. Two spermathecse. The former from a specimen from the 

 city of Mexico, the latter from Morelos. 



Diplocardia (Naillenia) Koebeli, sp. nov. 

 Apex from two penial setse. 



Spermatheca showing the short and broad diverticle with pockets 

 of spermatozoa. 



Trigaster tolteca, sp. nov. 

 Spermatheca. The small dots in the rounded chambers represent 

 the nuclei of glandular cells. 



Zapotecia ameca-mecce, gen. et sp. nov. 

 Spermatheca. The lower part which serves as diverticle contains 

 many small pockets for spermatozoa. 



Dichogaster Ribaucourti, sp. nov. 

 Spermatheca. The dots in the round chambers represent the 

 nuclei of the cells which compose the peculiar glandular structure 

 of the inner lining of the organ. 



Dichogaster Townsendi, sp. nov. 

 Fig. 182. Spermatheca. The sac is unusually thin-walled. 



Microscolex parvus, sp. nov. 

 Fig. 183. Spermatheca, showing the two diverticles. 

 Fig. 184. Prostate with sperm-ducts. 



Microscolex Horsti, sp. nov. 

 Fig. 185. Spermatheca. 



