170 



CALIFORNIA ACADEMY OF SCIENCES. [Proc. 3D Ser. 



Diplocardia 



Keyesi. 

 (Aleodrilus) 



4 _5._6_J7_ 8 9 10 II 12 13 14 15 16 17 18 19 20|2I|22 



.iiaiB' jiiiin 



IP 



LL 



f^^^iszi 



Diplocardia 

 verrucosa. 

 (Omahania) 



.tummt jnUi 



HIP IP 



y. 



3: 



Diplocardia 



Eiseni. 

 (Diplocardia) 



IP 



H 



L 



Diplocardia 



Michaelseni. 

 (Diplocardia) 



iliit miii 



I 



L 



1 



Diplocardia 



Udei. 

 (Diplocardia) 



Jllliiiiilt, 



il 



1 



i 



Diplocardia 



riparia. 

 (Diplocardia) 



iPP 



II 



i 



Diplocardia 



communis. 

 (Diplocardia) 





1 



1 



Diplocardia 

 singularis 

 caroliniana. 

 (Diplocardia) 



JUiiiilh 



ipip 



2£l 



i 



Diplocardia 

 Koebelei. 

 (Naillenia) 



nm, 



U 



Zapotecia 

 ameca-mecae. 



Trigaster 



tolteca. 



Trigaster 

 Lankesteri. 



II 



LI 



U 





f 







i^ 



J. 



Diagram Showing Location of Gizzards, Spermathece, Sperm-sacs, 

 DUCTS, Prostates and the Nature of the Nephridia. 



Sperm- 



