236 PROCEEDINGS COTTESWOLD CLUB 1906 
the opposite sides are almost confluent, nearly obliterating 
the furrow. There are from 35 to 40 of these ribs on the 
outer volution, which occupies about three-eighths of the 
whole diameter. Aperture, oblong-quadrate, diameter 
about two inches, thickness half an inch.” 
flistory :—There are three syntypes in the Strickland 
Collection, Sedgwick Museum, Cambridge. From these 
syntypes one is now chosen to be the lectotype of the 
species. Of the others, 1=S. prometheus, Reynés, 2= 
Wehneroceras sp. : 
A fragment of a small specimen obtained by Mr L. 
Richardson from a well at Ennick Ford, Humblebee Hall, 
near Upton Snodsbury, Worcestershire, agrees in costa- 
tion and general contour with this species. Whether it 
is stout enough to be identical is difficult to say, the 
materials for comparison being so deficient. 
3. SCHLOTHEIMIA AQUALIS (Szmpson) ? 
“E-goceras catenatum ; Wright, (non Sowerby), Mon. 
Lias Amm. 1880, Pl. xix, figs. 5-7, may represent this 
form, judging by what Blake says (Yorkshire Lias, p. 271). 
At any rate it is not Sowerby’s species, and is very’ 
distinct from anything else. 
4. SCHLOTHEIMIA PROMETHEUS (Reynes) Pl. XI, £. 3, 4. 
T.d. None. 
Tf 1879, Reynés, Monogr. Amm., Pl. iii, figs. 1-10. 
(Ammonites prometheus). 
Syn. Ammonites acuticosta, Strickland MS., J. Buck- 
man, Geol. Chelt., Ed. ii, 1844, p. 103, pars. 
Thinner and less coarsely costate than S. egualis as 
interpeted by Wright’s figure. Strickland’s fossil is from 
‘“ Lower Lias, Coltknap Hill, near Evesham,” and evidently, 
Hettangian, axgulatus-zone. 
