PLATE II. 
(m= mandibular, ‘= intermaxillary, and p= pharyngeal teeth.) 
Fig. 1. Zygonectes sciadicus Cope; Jor. and C. 
Fig. 2. Fundulus heteroclitus Linn. ; Gill. 
Figs. 3and 4. Fundulus parvipinnis Gra. 
Figs. 5 and 6. Fundulus majalis Walb. ; Gth. 
Fig. 7. Fundulus diaphanus Les. ; Ba. 
Fig. 8. Fundulus zebrinus Jor. & G. 
Fig. 9. Fundulus Rathbuni Jor. 
Fig. 10. Fundulus Kanse Garm. 
Fig. 11. Fundulus catenatus Stor. ; Gth. 
Fig. 12. Fundulus seminolis Grd. 
