202 G. LINDSTKOM, ON TIIK SH.UHIAN GASTHOPOIlA AND I'TEKOl'ODA OF GOTLAND. 



cupied for a Lamellibranchiate by Cii. 



Barrois in Ann. Soc. Geol. du Nord 



VIII p. 176. Pleurotomaria. 

 GryphocJiitoa Gray, 1847, Proc. Zool. Soc. 



p. 70. Devon, and Carbon. 

 Gyrotrema Barrande 1868, apud Bigsby. 



Thes. Silur. p. 167 ^ Tremanotus. 



Hall. 

 Helcion Montfort 1810, Conch. Syst. II p. 



63, applied by some to palasozoic Pa- 



tellids. 

 Helicites Schlotheim 1813, Jahrb. VII p. 35. 



Contains species of different genera, 



as Euoniphalus, Pleurotomaria, Orio- 



stoma. 

 Helicotoma Salter 1859. Dec. I, Geol. 



Survey of Canada, 10 — Euoniphalus 



and Pleurotomaria. 

 Helminthochiton Salter 1846, Proc. Geol. 



Soc. Loud, 49, 51, 52, f. 6. 

 Hercynella Kayser 1878, Fauna der alte- 



sten Devonabl. d. Harz, 101. — Pili- 



dium Baur. Mss not Forbes. 

 Holopea Hall 1847, Pal. N. Y. vol. I, 169. 

 Holopella Mac Coy 1852, Brit. Pal. Foss., 303. 

 Hormotoma Salter 1859, Canad. Organ. 



Remains Dec. I, 18. = Murchisonia. 

 Igoceras Hall 1859, Pal. N. Y. vol. HI, 



330. == Platyceras. 

 Inachus Hisinger 1838, Leth^ea, 37. Name 



preoccupied for a Crustacean. Consi- 

 sted of three species of which one, I. 



sulcatus, is a Pleurotomaria, I. angu- 



latus, is a Oriostoma and I. costatus a 



Cephalopodous shell, probably a Tro- 



choceras. 

 Isonema Meek and Worthen 1865, Proc. 



Acad. Nat. Sc. Philad., 251. 

 Lepetopsis Whitfield 1882, Bullet. Amer. 



Museum of Natural. Hist. ^/ 3, 67. 

 Litiopsis Edw. Forbes accord, to Salter 



1866 in McTu. Geol. Survey III, 346 -- 



Holopea. 



Litorina Fer. 1821, Tabl. System., XXXIV. 

 Several of the palaeozoic species, which 

 have been called Cyclonema, were re- 

 garded as Litorinaj by Pictet. 



Loricites Carpenter accord, to Dale, Pro- 

 ceed. U. S. Nat. Mus. 1882, 281, A 

 Carboniferous Chitonid from Belgium. 



Loxonema Phil. 1841, Palaeoz. Foss. of 

 Cornwall, 98. 



Luciella De Kon. 1883, Faune Carbonif. 

 Belgique II, iv, 107. A Pleurotomaria. 



Maclurea Emmons 1843, Geol. N. Y. II, 

 312. 



Maclurita Blainville 1825, Malac, 424. 



Maclurites Le Sueur 1818, Journ. Ac. N. 

 S. vol. I, 312. 



Macrochilus (not Macrocheilus) Phil. 1841, 

 Palajoz. Foss., 103. 



MacrocJiilina Bayle 1880, Journ. de Con- 

 chyliologie 3 Ser. vol. XX, 241. — Ma- 

 crochilus & Duncania. 



Margarita Leach 1819, Journ. de Phys. 

 464, Waagen Salt Range Fossils, 111. 



Metoptoma Phill. 1836, Geol. Yorkshire pt. 

 2, 223. 



Michelia F. A. Roemer 1854, Palajontogra- 

 phica Bd. 3, 73. Near Loxonema. 



Microceras Hall 1845, Sillira. Journ. vol. 

 48, 294. 



Microdoma Meek and Worthen 1866, Phi- 

 ladelphia Proceed. 269. 



Mitchellia De Kon. 1876, Foss. du Nouv. 

 Galles du Sud I, 128. 



Mogulia Waagen 1880, Salt Range Foss. 

 Palajont. Indica vol. XIII, 131. 



Mourlonia De Kon. 1883, Faune Carbonif. 

 de Belg., 245. = A Pleurotomaria. 



Murchisonia D'Archiac & Verneuil 1841- 

 Bull. Soc. Geol. XII, 154. 



Narica Recluz 1841, according to D'Ohb. 

 Moll. Cub. II, 39, used by De Koninck 

 1844, Anim. Terr. Carbonif., 475. 



