PLATE I. 



(;«:= mandibular, z ^ intermaxillary, and jO = pharyngeal teeth.) 



Figs. 1 and 2. Cyprinodon variegatus La C. 



m and p from specimen \ inches. 



m' from specimen | inches. 



m" from specimen 2J inches. 

 Fig. 3. Cyprinodon carpio Gth. 

 Fig. 4. Cyprinodon Floridce Goode ; Garm. 

 Fig. 5. Lebias SophicE Heck. 

 Fig. 6. Lebias punctatus Heck. 

 Figs. 7 and 8. Jenynsia lineata Jen. ; Gth. 

 Fig. 9. Characodon lateralis Gth. 

 Figs. 10 and 12. Zyijonectes Nollii Ag. 

 Fig. II. Crirardiuichthys innominatus Bikr. 

 Fig. 1.3. Zygonectes cingulatus C. V. ; Jor. & G. 

 Fig. 1 4. Zygonectes olivaceus Stor. ; Ag. 



