1911 



AMMONITES LECTVS 



43c 



Comparable Species 



Am. concavus ; d'Orbigny, 1845, cxvi, (2 species). 

 Am. concavus ; Chapuis & Dewalque, 1855, VIII, 3. 

 Harpoceras ledum ; Blake, 1876, viii, 7. 

 Am. falcodiscus, Quenstedt, 1885, liv, 23, 24. 



See also Nos. 10, 11, 13, 41, 42. 



