THE INFERIOR OOLITE OF DORSET. 



597 



1878. Sphceroceras contraction, Bayle (non /Sowerby), Explication 

 de la Carte Geol. de la France, vol. iv. pi. 53. figs. 1, 2. 



1881. A. Sauzei (d'Orb.), J. Buckman, Quart. Journ. Geol. Soc. 

 vol. xxxvii. p. 62, no. 6. 



Localities. Marly bed below the zone of Stephan. Humphriesianum 

 at Oborne and near Sherborne : rather scarce. 



Sphceroceras Brongniarti (Sow.). 



1817. Ammonites Brongniarti, Sow. Min. Conch, tab. 184 a. fig. 2. 



1845. A. Gervillii, d'Orb. (non Sow.), Terr. Jurass. pi. 140. figs. 3-8 

 (non 1, 2, non Sowerby). 



1849. A. Brongniarti (Sow.), Quenstedt, Ceph. tab. 15. fig. 9. 



1856. A. Brongniarti (Sow.), Oppel, Juraform. p. 375, no. 35. 



1867. A. Brongniarti (Sow.), Waagen, Geogn. Pal. Beitrage, 

 p. (96) 602. 



1878. Sphceroceras Brongniarti (Sow.), Bayle, Explic. de la Carte 

 Geologique de la France, pi. 53. figs. 3, 4, 5. 



Localities. Humphriesianum zone at Oborne, near Sherborne, &c. 

 Bather common. 



The species that I have placed under this name is the one figured 

 by Sowerby with the closed umbilicus ; and the other I have called 

 Sphcer. Gervillii. I do this because most authorities have so taken it ; 

 d'Orbigny, however, transposed them, whether rightly or not I am 

 unable to say without seeing Sowerby's original specimens. There 

 seems to have been some misprint or confusion with regard to them 

 in Sowerby's work. 



Sphceroceras Gervillii (Sow.). 



1817. Ammonites Gervillr., Sow. Min. Conch, pi. 184 a. fig. 3. 

 1849. A. Gervillii (Sow.), Quenstedt, Ceph. tab. 15. fig. 11. 

 1856. A. Gervillii (Sow.), Oppel, Juraform. p. 375, no. 36. 

 1867. A. Gervillii (Sow.), Waagen, Geogn. Palaont. Beitrage, 

 p. (99) 605. 



1878. Sphceroceras Gervillii (Sow.), Bayle, Explic. de la Carte 

 geologique de la France, pi. 53. figs. 6, 7. 



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

 vol. xxxvii. p. 63, fig. 4. 



Localities a Humphriesianum zone at Oborne, near Sherborne, &c. 

 Not so common as Sphcer. Brongniarti. 



Sphceroceras meniscus (Waagen) ? 



1867. Ammonites meniscus, "Waagen, Geogn. Palaont. Beitrage, 

 p. (96) 602. 



1875. A. Gervillii, d'Orb. pars (non Sowerby), pi. 140. figs. 1, 2. 

 Mr. E. Cleminshaw found one specimen at Oborne in the Sauzei 

 bed, which I have referred to this species. 



Sphceroceras Mansellli (J. Buckman). 



1881. Ammonites Mansellii, J. Buckman, Quart. Journ. Geol. 

 Soc. vol. xxxvii. p. 64, no. 18. 



