78 ALBIAN FOSSILS DISCOVERED AT OKEFORD FITZPAINE. 



Hoplites interruptus, Neumayr : Sitzb. K. Ak. Wiss. Wien, 

 1875, Vol. 71, parti., p. 685. 



This species is closely related to H. Benettianns in the character 

 of its costae and the details of the periphery, but differs in its more 

 discoid or compressed form, its smaller diameter, and its generally 

 smoother facies. Four specimens are in the collection : (1) a 

 fragment of a large example approaching H. Benettianus, but less 

 tumid and not so coarse ; (2) a small, rather inflated, and much 

 distorted form, showing tubercles ; (3 and 4) two compressed 

 varieties representing a more normal condition of the species, the 

 smaller one being figured on the present occasion. 

 Dimensions 45 by 40 Millimetres. 



RANGE OF SPECIES. Albian. 



LOCALITIES. Folkestone, Warminster, Norfolk. Shalford, Cam- 

 bridge, Hunstanton, and Lincolnshire (red chalk), Blackdown, &c. ; 

 Perte du Rhone, Saxonet, Forstberg, Schulberg, d'Ervy, Yonnc, &c. 



HOPLITES SPLENDENS, J. Sowerby. 



Ammonites splendens, J. Sowerby : Mineral Conchology, 1815, 

 Vol. 2, PI. 103, figs. 1-3, p. 1. 



Ammonites subplanus, Parkinson : Trans. Geol. Soc. (London), 

 1819, Vol. 5, Ft. 1, p. 57. 



Ammonites planus. 



Ammonites splendens, Mantell : Geology of Sussex, 1822, PI. 21, 

 figs. 3, 13, 17, p. 89. 



Ammonites splendens, Orbigny : Paleontologie Francaise, Terrains 

 Cretaces, Cephalopodes, 1840, PI. 63, p. 222. 



Hoplites splendens, Neumayr : Sitzb. K. Ak, Wiss. Wien, 1875, 

 Vol. 71, part i., p. 686. 



Two very young imperfect examples and a fragmentary whorl 

 belonging to an adult shell (width = 47 millimetres) were collected 

 at Okeford Fitzpaine. This species is compressed and involute ; 

 when perfect it shows subcostate lateral surfaces, a small umbilicus, 

 and a crenulated periphery with a smooth median space ; the aper- 

 ture is oblong and cordate, deeply cut for the reception of the spire. 



