cxii INFERIOR OOLITE AMMONITES. 



Distinction. — From Hugia, biarcuate pattern of radial line, costation closer and 

 more persistent. 



1. Lopadocebas fuecattjm, 8. Buckman. Suppl., Plate XXI, figs. 1G — 18. 



Description. — Snblatumbilicate subspissicostate, mostly connaticostge. 



Remarks. — This species is the morphic equivalent of Beynesella juncta, but is 

 particularly distinguished therefrom by the stouter whorls, especially round the 

 umbilicus, also by the more numerous ribs. 



Locality and Stratum. — Dorset: Stoke Knap, Building Stone. 



Date of Existence. — Discitae hemera, presumably. 



2. Lopadocebas aecuatum, 8. Buckman. Suppl., Plate XXI, figs. 19 — 21. 



Description. — Spissisubcostate, with tendency towards parvicostate. 

 Localities and Strata. — Dorset : Stoke Knap, Building Stone, some specimens in 

 situ, layer 3 ; Bradford Abbas, Fossil Bed. 

 Date of Existence. — Discitae hemera. 



3. Lopadocebas euides, 8. Buckman. Suppl., Plate XXI, figs. 22 — 24. 



Description. — SpissL-parvicostate, with tendency to striation. 

 Distinction. — From L. arcuatum, the decline of ornament. 



Localities and Strata. — Dorset: Stoke Knap, Building Stone, some specimens in 

 situ, layer 3 ; Bradford Abbas, Fossil Bed. 

 Date of Existence. — Discitae hemera. 



Carina Variable. 

 Distincticarinate (type series). 

 Subalticarinate (similar series). 



XLVI. Genus — Dabellia, 1 8. Buckman. 

 (Type : Darellia semicostata, S. Buckman.) 



1898. Darellia, S. Buckman, 'Jurassic Time' ; Quart. Journ. Geol. Soc, vol. liv, 



p. 459. 



1 In honour of Mr. Darell Stephens, F.G.S., whose assiduous collecting has added so many new 

 species to the Dorset fauna. Since this was written he has taken the surname of Darell. 



