Distribution of British Carboniferous Nautiloids. 407 



Trigonoceras M'Coy, 1844. 



Type. — T. paradoxicum J. de C. Sow., 1825, Miii. Conch., vol. v, 

 p. 81, pi. cccclvii. 



Trigonoceras paradoxicum J. de C. Sow. — Carboniferous Limestone, 

 Ci. St. Doolaglis, CO. Dublin ; Clane, co. Kildare ; Rathkeale and 

 Doohyle, co. Limerick ; Cork, Ireland. Fide De Koninck, Vise, 

 Belgium. 



Pleuronautilus Mojsisovics. 

 Pleuronautilus falcatus J. de C. Sow. — Coal-measures. Rosser 

 Veins, Glan Rymney, S. Wales ; Pennystone, Shropshire. Millstone 

 Grit (Sabden Shales), Sale Wheel, River Ribble, Lancashire. 



P. armatus J. de C. Sow. — Coal-measures. Pennystone, Shrop- 

 shire. 



P. costatus Hind. — Coal-measures. Below Gin Mine Coal, N. 



Staffs ; 705 feet above the Barnsley Coal at Brodsworth, Yorkshire. 



P. pulcher Crick. — Millstone Grit to Coal-measures, Sabden 



Shales horizon, Horsebridge Clough, near Hebden Bridge ; 71 feet 



below the 4 ft. Coal, Cheadle, N. Staffs. 



P. rotifer Salter. — This species is probably identical with P. 

 falcatus J. de C. Sowerby. 150 yards above the Great Mine Coal, 

 River Tame, Ashton-under-Lyme. 



P. nodosocarinatus F. Romer. Range, Dibunophyllum zone to 

 Millstone Grit. 



Syn. Nautilus nodiferus Armstrong, Trans. Geol. Soc. Glasgow, vol. ii, 

 pt.i, p. 74, pi i, figs. 6-7. 

 Pleuronautilus nodosocarinatus Foord, Geol. Mag., 1891, p. 481, 

 with woodcut. 



Marine Band, Caton Green, Lancashire ; below Little Limestone, 

 Smith's Grit, near Hawes, Swaledale, Yorkshire. U.L.S., Castle- 

 cary, Arden, Barrhead, Garngad Road, Gare, Westerhouse ; L.L.S., 

 East Kilbride, Scotland. 



P. scarlettensis Reid. — Top of Upper Dibunophyllum zone or 

 base of Pendleside Series. Scarlet Quarry, Isle of Man. 



Ephippioceras Hyatt. 



Type. — E. ferratus Cox, Coal-measures, Kentucky, U.S.A. 



Ephijopioceras hilohatum Sow. — Upper beds of Carboniferous Lime- 

 stone to Coal-measures. The Caytongill Beds of Sawley, near Ripon, 

 Yorkshire ; 4 Laws Limestone, Combe, Northumberland ; below the 

 3rd Grit, Congleton Edge, Cheshire ; Castletown Limestones, Isle of 

 Man. Carboniferous Limestone, Closeburn, Dumfriesshire, Scotland. 



E. clitellariimi J. de C. Sowerby. — Coal-measures. Pennystone 

 Bed, Shropshire ; Marine band above the Barnsley Coal, Yorkshire. 



E. costatum Foord. — Coal-measures. Pennystone Bed, Shrop- 

 shire ; below the Gin Mine Coal, N. Staffs ; Leicestershire. 



E. ivildi Hind. — Coal-measures. Above the Bullion Coal, Carre- 

 heys (near Colne), Burnley, Shere (near Littleborough), and Sholver 

 (near Oldham), Lancashire. 



