SOME NEW SPECIES OF AMMONITES 

 FROM THE INFERIOR OOLITE. 



Bij S. S. BUCKMAN, Esq., F.G.S. 



IN the following paper I propose to illustrate and describe 

 some few of the more striking neio species of Ammonites 

 of which a large number have lately been collected from 

 the Inferior Oolite of Dorset. I have been able to separate about 

 one hundred good species of Ammonites from these beds in 

 Dorset and part of Somerset, and about 50 of them I cannot find 

 described. The ones that I could find so described I catalogued, 

 and mentioned in a paper to the Geological Society in 1881. 

 Then I also described, but did not figure four sjDecies mentioned 

 'in this papei', viz., Amaltheus, subspinatus, Lytoceras, confusum, 

 Perisphinctes Davidsoni, and Sphaeroceras Manselii (J. Buck.). 

 Since then we have also to add to the list of described sjiecies 

 Sarpoceras opalinum (Eein), and Harpoceras subinsigne (Oppel), 

 from the opalimim bed of Burton Bradstock, Dorset. 



It may be as well to mention the amount of material from the 

 study of which these papers have been compiled. My father's 

 collection and my own of Inferior Oolite Ammonites alone 

 amount to nearly 3,000 specimens, while I have also been kindly 

 permitted to examine several hundred specimens in the collec- 

 tions of Mr. T. C. Maggs, Mr. D. Stephens, Mr. E. Cleminshaw, 

 Mr. Monk, and others. 



As will be seen from remarks further on, I am of opinion that more 

 separation is required with regard to the genera of these Ammon- 



