CTKTOCERATID^. 
303 
Horizon. ]May Hill Sandstone (Mulloch Hill Group of the Xew- 
land’s Series of Lapworth \). Lower Ludlow. 
Localities. Hnlloch, Ayrshire ; Hoektree Hill, Herefordshire. 
Represented in the Collection by Salter’s type, and by one of the 
specimens figured by Blake (loc. cit. pi. xviii. f. 11). 
Cyrtoceras (Meloceras) M^Coyi, Poord. 
? 1839. Phragmoceras arcuafum, J. de C. Sowerby, in Hurchison’s Sil. 
Syst. pt. ii. p. 621, pi. xi. f. 1 (not pi. x. f. 1). 
1851. Phragmoceras intermedium, M‘Coy, Ann. Mag. Xat. Hist. ser. 2, 
Tol. vii. p. 45. 
1852. Phragmoceras intermedium, M^Coy, British Pal. Foss. fasc. ii. 
p. 322. 
1873. Phragmoceras ? intermedium, Salter, Cat. Cambr. & Sil. Foss, 
p. 174. 
1882. Cyrtoceras intermedium, Blake, British Foss. Ceph. p. 179, pi. xx. 
f. 6, pi. xxi. f. 2, pi. xviii. f. 13. 
[Ab^ 1867. Cyrtoceras intermedium, Barrande, Syst. Sil. de la Boheme, 
vol. ii. pt. i. p. 552, pi. cxlvii. ff. 27-29, pi. cxiix. fp. 13-17, pi. cl., 
pi. cli. ff. 22-27 ; ibid. 1877, Suppl. et Ser. tardive, p. 29, pi. 
ccccxxvii. ff. 26-40.] 
Sj). Char. “ Slightly arched, tapering at the rate of 4 lines in 
1 inch ; section ovate, sides gently convex, outer and inner faces 
ronnded ; a specimen (not quite perfect) 2 inches 5 lines long has 
the long (antero-posterior) diameter at the large end 1 inch 4 lines, 
at the small end. 9 lines ; short (lateral) diameter at large end 10 
lines; length of last chamber 1 inch 1 line; the last five or six 
septa 1| line apart in the middle of the side. 
“ I have not seen the siphon of fhis species , . . (^PCoy). 
Hernarhs. The specimen representing the present species in the 
Museum Collection is one of those figured by Blake (loc. cit. pi. xviii, 
f. 13), and his remark concerning it that it is “ a small specimen 
possibly of this species,’’ expresses a doubt as to its relations which 
I fully share in. I have been obliged to substitute another name 
for M‘Coy’s intermedium, to avoid repetition, now that that species 
is assigned to Cyrtoceras, and I have conferred upon it the name of 
the distinguished palaeontologist who first described it. 
Horizon. Menlock Shales. 
Locality. Dudley, Worcestershire. 
^ See Lapworth on “ The Giiwan Succession,” Quart. Journ. Geol. Soc. 1882, 
vol. xxxviii. p. 537. 
