791 



PSEPH. 



Psephodus magnus, ZitteL's Handbuch, Vol. 3, page 73, 



fig. 67, showing a group of fragments assigned (where found 

 separately) to diiferent fish and called Helodus rudes (McCoy), 

 Helodus planus (Agas.), Lophodus didymus and Lophodus 

 Icevissimus, thus multiplying needlessly both generic and 

 specific names. — Subcarhoniterous of Ireland, XL 



Psephodus latus, St. John and Worthen, Geol. Illinois, 

 Vol. 7, 1883, page 72, plate 2, selected figs, la^ small mandibu- 

 lar median tooth, seen from above, broken ; 5, inner profile; 

 6', outer; 6?, hind-side; 6, front-side ; 2 <x, etc., very small tooth, 



G^oUllyiLFUtcZ, ^ 



^ a 



St John 



various aspects; 3a, etc., serial tooth, various aspects. St. 

 Louis {subcarhoniterous) Z^m^5^6>^i^ at Alton and St. Louis. XL 



Psephodus lunulatus,,St. John and Worthen, Ge. 111. Vol. 



XL Chester Ijlm. 4^ a ^ -^ 4 o 



VaL]/ll,Ti.Z. V^ '^^ ^'^^' 



7, 1883, page 74, plate 2, figs. 4a to d^ fish-tooth sepn from above, 



from side, inner, and outer edge. Ctiester. i. XL. 



Psephodus obliquus, St. John and Worthen, Geo. Sur. 



111., Vol. 7, 1883, page ^^^ plate 1, selected fig. 15, large middle 

 23 



^ 



