THE INFERIOR OOLITE OP DORSET. 



595 



Stephanoceras Deslongschampsii (Defrance). 



1845. Ammonites Deslongschampsii (Defr.), d'Orb. Terr. Jurass. 

 pi. 138. figs. 1, 2. 



1856. A. Deslongschampsii (Defr.), Oppel, Juraform. p. 378, 

 no. 44. 



1880. Stephanoceras Deslongschampsii (Defr ,), Wright, Lias Amm . 

 PalEeont. Soc. 1880, p. 224, fig. 116. 



Locality. Humphriesianum zone, Oborne : very rare. 



The termination of this species is a fine semilunar border. One 

 beautiful specimen showing this was obtained from Oborne by E. 

 Cleminshaw, Esq., E.G.S. 



Stephanoceras Blagdeni (Sow.). 



1818. Ammonites Blagdeni, Sow. Min. Conch, pi. 201. 

 1818. A. Banksii (Sow.), Min. Conch, pi. 200. 

 1830. A. coronatus (Schloth.), Zieten, Yerstein. Wiirttemb. tab. i. 

 fig. 1. 



1845. A. Blagdeni (Sow.), d'Orb. Terr. Jurass. tab. 132. 



? A. coronatus, Quenstedt, Der Jura, tab. 51. fig. 1. 

 1849. ? A. coronatus, Quenstedt, Ceph. tab. 14. fig. 1. 

 1854. A. Blagdeni (Sow.), Morris, Catalogue, p. 290. 



A. Blagdeni (Sow.), Morris and Lycett, Great Ool. Moll, 

 tab. 14. fig. 3. 



1856. A. Blagdeni (Sow.), Oppel, Juraformation, p. 374, no. 38. 



1880. Stephanoceras Blagdeni (Sow.), Wright, Lias Ammonites, 

 Palseont. Soc. 1880, p. 251, figs. 157, 158. 



Localities. This species occurs in the Humphriesianum zone of 

 Oborne, Sherborne, &c. 



Stephan. (Ammonites) Banksii (Sow.) is merely a very large 

 variety of this species. 



Stephanoceras Braikenridgii (Sow.). 



1818. Ammonites Braikenridgii, Sow. Min. Conch pi. 184. 

 1845. A. Braikenridgii (Sow.), d'Orb. Terr. Jurass. pi. 135. 

 figs. 3-5. 



A. Braikenridgii (Sow.), Quenstedt, Der Jura, tab. 54. fig. 5. 

 A. Braikenridgii (Sow.). ? Morr. & Lyc. Great Ool. Moll. pi. 14. 

 fig.l. 



1854. A. Braikenridgii (Sow.), Morris, Catalogue, p. 290. 

 1856. A. Braikenridgii (Sow.), Oppel, Juraformation, p. 377, 

 no. 42. 



1880. Stephanoceras Braikenridgii (Sow.), Wright, Lias Ammo- 

 nites, Palgeont. Soc. p. 251, figs. 159, 160. 



1881. A. Braikenridgii (Sow.), J. Buckman, Quart. Journ. Geol. 

 Soc. vol. xxxvii. p. 62, fig. 3. 



Localities. Humphriesianum zone at Oborne, and other quarries 

 near Sherborne. 



The termination of this species is a fine ear on each side, as is 

 well shown in d'Orbigny. The length of ears varies very much ; 



2r2 



