UNITED STATES Sc MEXICAN BOUNDARY • fishes 
J-HRickarA del. Dotigal sc. 
Figs. 1-4. CAMPOSTOMA ORNATUM, G-rd. Figs. 5-8. CAMPOSTOMA ^ FORMOSULUM, &xd. 
Figs. 9-12. CAMPOSTOMA NASUTUM, Grd. 
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