﻿PRODUCTUS. 



90 



M. de Vcrncuil does not appear to have recognised the identity of S/. productoides and 

 St. carepata, since in his description of the fossils of the older deposits of the Rhenish 

 Provinces he refers to the two as distinct species, 



Strophalosia productoides is exceedingly abundant in the state of casts in the Upper 

 Devonian Grits and Shales of North Devon — such as at Eraunton ; near Orchard quarry, 

 parish of Pilton, &c. ; it is also very common at Petherwin, in Cornwall. On the 

 Continent it is not abundant at Ferques, in the Bas Boulonnais, and from whence 

 I obtained three or four perfect specimens, with part of the long slender spines still 

 adhering. It occurs, also, at Couvin, in Belgium ; Gcrolstein, in the Eifcl ; and 

 M. de Vcrncuil mentions Volkof, Bouregi, Lake Ilmen, Voroneye, Lebedian, Zadonsk, &c. ; 

 but I am not quite certain whether the shell has in reality been obtained from all the 

 localities recorded by various authors, and 1 am almost inclined to believe that Prof, de 

 Koninck may have combined two species under the denomination of P. Murchisonianiis. 



Genus — Productus. 

 Productus subaculeatus, Murch. PI. XX, figs. 1, 2. 



Productus subaculeatus, Murch. Bull. Soc. Geol. de France, vol. xi, p. 255, pi. ii, 



fig. 9, 1840. 



Lept.ena fragaria, /. de C. Sowerby. Trans, of the Geol. Soc. of Loudon, 2nd ser., 

 vol. v, p. 704, pi. lvi, fig. 5, 1840. 



— — Phillips. Pal. Foss. of Cornwall, Devon, and West Somerset, 



p. 59, pi. xxv, fig. 100, 1841. 

 Puoductus spinulosus (partim), Be Kon. Desc. des Anim. Foss. du Terr. Carb. de 



Belgique (figuris exclusis), non Sow., 1843. 



— subaculeatus (partim), Be Vemeuil. Russia and the Ural Mount., vol. ii, 



p. 282, pi. xvi, fig. 9, 1845. 



— — (partim), Be Keyserling. Reise in das Petschora-land, p. 199 



(figuris exclusis), 1846. 



— — Be Kon. Mon. du Genre Productus, Mem. de la Soc. 



Royale de Liege, vol. iv, p. 249, pi. xiv, fig. 4, 1847, et 

 Monographe des Genres Productus et Chonetes, p. 142, 

 pi. xvi, fig. 4, 1847. 



— — De Vemeuil. Bull. Soc. Geol. de France, 2nd ser., vol. iv, 



p. 705, pi. lx, 1847. 



— — (partim), Bronn. Index Paleeontologicus, p. 1043, 1848 



(not P. productoides, Murch.). 

 _ _ j) e Vemeuil. Bull. Soc. Ge'ol. de France, 2nd ser., vol. vii, 



p. 362, 1850. 



— (strophalosia) subaculeata, M'Coy. British Pal. Foss., p. 308, 1852. 



