42 TYPE AMMONITES— VII 



Date of 

 Plate. Vol. issue, 



g. — lenticular e. 

 Amauroceras lenticulare, Young & Bird sp. 1828 ..20 I iii, 10. 



/. — IcBvis. 

 Amauroceras ferrugineum, Simpson sp. 1855. G.-t. 142 III x, 19. 



e. — Seguenziceras [algovianum] . 

 ? Amaltheus depressus, Simpson sp. 1843 .... 25 I iii, 11. 



Seguenziceras nitescens, Young & Bird sp. 1828 . . 74 II v, 13. 



d. — clevelandicus . 

 Amaltheus clevelandicus, Young & Bird sp. 1828 . . 109 II iv, 18. 



c. — acanthodes. 



b. — boscense. 



a. — ft el din gi. 



II. LlPAROCERATAN. 



/. — Oistoceras [striatum]. 



Oistoceras figulinum, Simpson sp. 1855. G.-t 26a, b. I iii, 11. 



omissum, Simpson sp. 1855 27 I iii, 11. 



e. — dcedalicosta . 



Androgynoceras maculatum, Young & Bird sp. 1822 45a, b. I ii, 12. 



d. — davcei. 



c. — latcecosta. 



Androgynoceras heterogenes, Young & Bird sp. 1828 46 



Tragophylloceras ambiguum, Simpson sp. 1843 . . 16 



b. — Beaniceras. 



Beaniceras centaurus, d'Orbigny sp. 1844 . . . . 146 



costatum, nov 123 



crassum, nov 147 



luridum, Simpson sp. 1855. G.-t. . . 73 



rotundum, nov 129 



senile, nov 126 



126a 



Defossiceras defossum, Bean-Simpson sp. 1843. G.-t. 76 



Tragophylloceras nanum, Simpson sp. 1855 . . . . 679 



a. — cheltiense. 



Liparoceras heptangulare, Young & Bird sp. 1828.. 108a, b, c. II 



IO. POLYMORPHITAN. 



/. — actceon. 



k. — valdani. 



j. — maugenesti [ibex]. 



Tragophylloceras huntoni, Simpson sp. 1843 .. .. 219 III iii, 21. 



numismalis, Quenstedt sp. 1846 . . 233 III vii, 21. 



robinsoni, Simpson sp. 1843 . . .. 220 III iii, 21. 



i. — masseanus. 



h. — pettos. 

 Coeloceras incrassatum, Simpson sp. 1855 .. .. 210 III iii, 21. 



