cxc INFERIOR OOLITE AMMONITES. 



Description. — Latumbilicate, flexi-rursi-costate : periphery rounded, practically 

 non-carinate. 



Remarks. — The figured specimens show lateral (mouth-border) lappets, or signs 

 thereof, at 16, 32, 36 mm. diameter. Other examples show them at 28 mm. (two) 

 and at 32 mm. 



Localities and Stratum. — Dorset : Bradford Abbas, Fossil Bed ; Somerset : 

 Stoford. A not uncommon species. 



Date of Existence. — Discitse hemera. 



b. Subflexicostate. 



7. Fontannesia Boweri (J. Buckman). Suppl., Plate XXIV, figs. 1—4 (type 



refigured). 



— Ammonites Boweri. J. Buckmau, MS. 

 1883. Harpoceras Boweri, S. Buckman, New Spp. Amm. ; Proc. Dorset Club, 



vol. iv, p. 145, woodcut. 

 1889. Sonninia Boweri (pars), This Monogr., p. 119. 

 1902. Fontannesia Boweri, Emend. Amm. Nom., p. 6. 



Remarks. — This is a most noteworthy species. The type form was at one time 

 thought to be the same as Sonninia Zurcheri (Douville), which, however, it precedes 

 by two years; and so the name Sonninia Boweri was used. But it is not a Sonninia; 

 the suture-line, which can be seen obscurely through the test, has a dependent 

 inner portion. Also Boweri differs from Zurcheri in not having such flexed costas, 

 nor the sulci beside the carina, nor so distinct a carina. 



The name was suggested by my father in honour of his friend the Rev. — 

 Bower, of Closeworth, Somerset, a geologist. 



Distinction. — From F. luculenta ; a smaller umbilicus and less distinct costae. 



Locality and Stratum. — Dorset : Bradford Abbas, Fossil Bed. 



Date of Existence. — Discitde hemera. 



c. Subrecticostate. 



8. Fontannesia aurita, S. Buckman. Suppl., Plate XXIV, fig. 7. 



Description. — Sublatumbilicate ; crassicostate ; periphery rounded, parvi- 

 carinate, with area each side of carina slightly depressed. 



Distinction. — From F. Boweri, more costate, more umbilicate, and thinner. 



Locality and Stratum. — Dorset : Halfway House (Compton), near Sherborne, 

 presumably from bed equivalent to the Bradford- Abbas Fossil Bed. 



Date of Existence. — Concavi or Discitse hemera, presumably. 





