88 PERMIAN FOSSILS. 
GRYPHITES ACULEATUS, Schlotheim. 'Taschenbuch, vol. vii, pp. 56, 58, pl. iv, figs. 1, 2 
(fig. 3 exclusa), 1813. 
Curious sHELL,! Thomson. Annals of Philosophy, vol. iv, p. 18, 1814. 
A sprcies oF Carpium, J. B. Taylor. Surtees, Hist. Durham, vol. i, p. 236, 1816. 
(2) Casts of ANomim, Winch. Trans. Geol. Soc. Lond., vol. iv, p. 10, 1817. 
GRYPHITES ACULEATUS,” Schl. Petrefactenkunde, p. 293, 1820. 
Propuctus HorRipDus, J. Sow. Min. Conch., vol. iv, p. 17, pl. ccexix, fig. i, 1823. 
= Hoppit, Kenig. Icones Sect. Foss., pl. ix, fig. 108, 1825. 
Grypuites acuLEatus, Schl. Boue, Edin. Phil. Journ., vol. xii, p. 144, 1825. 
Propucra catva, J. de C. Sow. Min. Conch., vol. vi, p. 115, pl. dlx, figs. 2-6, 1827. 
Propuctus acuLEatus, Schl. Bronn, Zeitschrift, vol. ii, p. 543, 1827. 
— HORRIDUS, J. Sow. Fleming, Brit. Animals, p. 379, 1828. 
= ACULEATUS (GrypuITES), Sch/. Alex. Brongniart, Tab. de Ter., p. 423, 1829. 
Propucta antiquaTa, J. Sow. J. de C. Sow., Trans. Geol. Soc. Lond., 2d series, vol. iii, 
p. 119, 1829. 
— caLva, J. de C. Sow. Loe. cit. 
— HORRIDA, J. Sow. Loc. cit. 
— ACULEATA, Schl. De la Beche, Geol. Man., p. 384, 1831; German transl., 
p- 4599, 1832; and 3d Eng. ed., p. 573, 1833. 
— ANTIQUATA, J. de C. Sow. Loe. cit. 
= CALVA A Loe. cit. 
PRopuctus acuLEATUS, Schl. Kurtze, Petr. Mansf., p. 33, 1833. 
PropuctTa ACULEATA,  ,, Phillips, Encyc. Met., vol. iv, pl. iu, fig. 1, p. 617, 1834. 
— ANTIQUATA, J. de C. Sow. Loc. cit. 
— CALVA 55 Loe. cit. 
STROPHOMENA acULEATA, Schl. Bronn, Lethzea Geognostica, vol. i, p. 86, pl. iui, fig. 
la; 6; c, 1835. 
Propucta — » Quenstedt, Wiegmann’s Archiv, vol. 1i, p. 76, pl. i, fig. 
2a, 6, ce, 1835. 
PRODUCTUS TUBULIFERUS, Deshayes. Lamarck, Anim. sans Vertéb., t. vu, p. 379, 
2d ed., 1836. 
— caLvus, J. de C. Sow. Deshayes, op. cit., t. vil, p. 381, 1836. 
Propucta Horripa, J. Sow. Phillips, Lardner’s Cyclopedia, Geology, vol. i, p. 190, 
fig. 5, 1837. 
—  catva, J. de C. Sow. Lyell, Elements of Geology, p. 416, fig. 240, 1838. 
Propuctus acuLeatus, Schl. Von Buch, Akad. Berl., Theil i, p. 35 (excl. p. 27), pl. ii, 
figs. 13-15, 1840. 
— — » Leonhard, Geologie, vol. i, p. 26, pl. 1xi, fig. 3, 1840. 
— — »  Geinitz, Jahrbuch, p. 640, 1841. 
— caLvus, J. de C. Sow. Morris, Catalogue, p. 126, 1843. 
= AcuLEATUS, Schl. Geinitz, Geea von Sachsen, p. 97, 1843. 
1 «This most curious shell has some resemblance to a shell observed by Martin in the Magnesian Lime- 
stone of Bredon in Derbyshire, and probably constituting a species of the same genus.” (Thomson, 
loc. cit.) 
> Schlotheim’s specific name aculeatus is now abandoned for the shell under consideration, as Martin, 
in his ‘ Petrefacta Derbiensa,’ 1809, had previously applied the same name to another Productus found in 
the Mountain limestone. 
