410 Dr. Wheelton Hind — British Carboniferous Nautiloids. 



Planetoceras Hyatt. 



Planetoeeras glohatum. J. de C. Sow. — Horizon Ci. St. Doolaghs, 

 CO. Dublin, Kildare, and Doneraile, co. Cork, Ireland. A very 

 much misunderstood fossil ; few authors have correctly referred 

 specimens to this genus. 



CoLOCERAS Hyatt. 



Coloceras coyanum d'Orbigny. — C.-S. horizon. Kilmallock and 

 Eathkeale, co. Limerick, and Ballydufi, co. Waterford, Ireland. 

 De Koninck quotes the species from Vise, Belgium. 



C. bistriale Phillips. — Poolvash, Isle of Man. Clane, co. Kildare, 

 and Tourdeely, co. Limerick, Ireland. Woodmill, Dunfermline, 

 U.L.S., Scotland. The distribution of this species requires further 

 examination, and the Irish examples are from Lower Carboniferous 

 beds and the British from higher only. 



Thrincoceras Hyatt. 



Thrincoceras hyatti Foord. — St. Doolaghs, co. Dublin. 



T. hihernicwn Foord. — Glenbane, co. Limerick. 



T. luidii Martin. — Narrowdale, Staffs ; and the Limestones of 

 Pendleside horizon, Longstone, Derbyshire ; Hodder, Lancashire ; 

 Elbolton, Yorkshire. Lady McLaren's Quarry, near Prestatyn, 

 Wales. 



Aipoceras Hyatt. 



Aipoceras compressum Foord. — Horizon C. Clane, co. Kildare, 

 Ireland. 



AsYMPTOCERAS Ryckholt, 1852, emend. Hyatt, 1883-93. 



Asymptoceras crassilahrum Foord. — Clane, co. Kildare. 

 A.foordi Hyatt. — Clane, co. Kildare, and Rathkeale, co. Limerick. 



SoLENOCHEiLUS Meek & Worthen, emend. Hyatt, 1883-93. 



Solenocheilus Phillips. — C.-S. Salt Hill and Bellman Quarries, 

 Clitheroe, Lancashire. St. Doolaghs, co. Dublin, Clane, co. Kildare, 

 Rathkeale and near Askeaton, co. Limerick. Black Rock and Little 

 Island, CO. Cork, fide Griffiths. 



S. hibernicus Foord. 

 Syn. Acanthonautilus bispinosus Foord. 



Clane, co. Kildare, and ? Little Island, co. Cork. 



S. clausus Foord. — Little Island, near Cork ; probably D. 



S. caledonicus Foord. — Elbolton, Yorkshire. Arden Quarry, 

 Nitshill, Glasgow, and Roscobie, Fife, Scotland. 



S. cyclostomus Phillips. — Millstone Grit, Horsebridge Clough, and 

 High Green Wood at th>i horizon of the Sabden Shales ; Crowdecote, 

 Derbyshire. Axton, N. Wales. 



S. crassiventer de Koninck. — The Little Limestone, Weardale ; 

 (var.) Castleton, Derbyshire. 



