1913 AMMONITES NITESCENS 74^ 



Comparable Species 

 93, 29, 21, 44 



Am. radians amalthei, Oppel, 1853, 111, 1 — F. 47, 28, 17, 47. 

 4m. multicostatus ; Chapuis & Dewalque, 1855, VI, 2 — F. 56, 26, 



31, 52. 

 Falciferer Ammonit, Quenstedt, 1856, xxn, 28, type of 



Am. algovianus, Oppel, 1862, p. 137. 

 Am. obliquecostatus ; Quenstedt, 1856, xxn, 29, 30, — 30, type of 



Am. retrorsicosta, Oppel, 1862, p. 138. 

 Am. algovianus, Reynes, 1868, 11, ia, b — F. 56, 31, 20, 46 ; ic — 



F. 20, 27, — , 50. 

 Am. ruthenensis. Id. 11, 4 — F. 48, 29, 24, 47. 



froceras algovianum ; Blake, 1876, vni, 1, — F. 84 (56), 30, — , 46. 

 H. algovianum ; Meneghini, 1881, App. 11, 1, — F. 47, 27, 24, 43. 

 H. comense ; Id. 11, 2 — F. 25, 30, 29, 42. 

 H. retrorsicosta ; Id. 11, 3 — F. 17, 30, 30, 41. 

 //. ruthenense ; Id. 11, 7 — F. 26, 30, 20, 41. 

 //. ruthenense var. velox, Id. 11, 17 — F. 17, 30, 30, 40. 

 H. nitescens ; Wright, 1882, xlix, 4, 5 — F. 40 (80), 34, 20,40 ; 6,7 — 



F. 81, 29, 24, 50. 

 Am. radians 5 crassitesta, Quenstedt, 1885, xlii, 43 — F. 77, 30, 



23, 49 ; 45— F. 88, 30, — , 48. 

 Am. cf. obliquecostatus ; Id. xlii, 44 — F. 71, 27, 21, 52. 



See also Bettoni, Foss. Dom. (Pal. Suisse) 1900, spp. under Hildoceras 

 (Arieticeras). 



