KONGL. SV. VET. AKADEMIENS HANDL. BAND. 19. N:0 G. 



201 



Cyrtolites Conrad 1838, Ann. Rep. N. Y. 

 State Cab., 118. 



Cyrto7iella Hall 1879, Pal. N. Y. vol. V, pt. 

 II, 123. 



Delphinula Lamk 1804, Ann. du Mnséum IV, 

 108. GoLDFUSS and Hisinger have re- 

 ferred several of the Oriostomata to 

 this genus. True Delphinula begin to 

 appear in the strata of St. Cassian. 



Dentalium L. 1758, S. N. ed. X, 785. The 

 oldest species known are Devonian. 



Ditaxopus Rafinesque 1839, Bull. Soc. Géol. 

 X, 378. Perhaps a Bellerophon. 



Duncajiia Bayle 1879, Journ. de Conchy- 

 liologie vol. 19, 35, låter changed into 

 Macrochilina. 



Eccyliomphalus (not Ecculiomphalns) Port- 

 lock 1843, Rep., 411. Most species 

 nothing but evolute Euomphali. Ac- 

 cording to the derivation the naine is 

 to be written as above. 



Elenchus Humphrey 1797, Mus. Calonnia- 

 nura . . ., according to Mac Coy Carb. 

 Foss. Ireland, 42, a species in the Old 

 Red Sandstone of Ireland, but may 

 probably belong to another genus. 



Ellipsolithes Sowerby 1813, Min. Conch., 

 vol. I 81, non Montfort, whose genus 

 embraced only Polythalamia. Sowerby 

 has himself låter in Min. Conch. vol. 

 5 p. 107 corrected his species and in- 

 dicated two as Cephalopoda and one, 

 Eu. ovatus, as a Bellerophon. 



Entalis Gray 1840, Syn. Brit. Mus. . . . See 

 Waagen. Pal. Ind. XII p. 180. 



Eotrochus Whitfield 1882, Bullet. Amer. 

 Mus. N. Hist. M '6 p. 77. 



EuchiysalisljÅHBE 1868, Denkschriften Akad. 

 Wissensch. zu Wien, 2:e Abtheil. 69. 

 Silurian and Trias. 



Euliina Risso 1826, Hist. IV p. 123, Loxo- 

 nema and Polypheraopsis are synony- 

 mous according to Hermannsen. 



K. Sv. Vct.-.ikad. Handl Bd. li>. N:o G. 



Eunema Salter 1873, Catal. Mus. Cambrid- 

 ge, 156. 



Euomphalopterus Ferd. Roemer 1876, Leth. 

 Geogn. Atlas. Taf. 14. f. 9. — 'i'yP^' 

 E. (Pleurotomaria) alata, Silurian. 



Eiiomphalus Sow . 1814, Min. Conch. vol. 1, 97. 



Euphemus Mac Coy, 1844 Carbonif. Foss. 

 of Ireland, 25. Although M'Coy him- 

 self låter, in Brit. Palaeoz. Foss., 308, 

 declared that this genus was identical 

 with Bellerophon, the slit band having 

 by oversight been described as defi- 

 cient, Waagen and De Koninck have 

 again tried to revive it. But on com- 

 paring the species described by both 

 these authors as belonging to Euphe- 

 mus, it is easily found that the Eu- 

 phemus of Waagen cannot be recon- 

 ciled with that of De Koninck. While 

 the latter author as Euphemi describes 

 E. Urii and other Bellerophons, Waa- 

 gen makes us acquainted with several 

 forms so stränge, that it may be doub- 

 ted whether they are Gastropoda at 

 all or not rather Cephalopoda of some 

 new genus. 



Exogyroceras Meek and Worthen 1868, Geol. 

 Survey of Illinois, vol. Ill, 509. 



Fissurella Brug. 1789, Encvcl. method. vol. I 

 p. XIV, pala30zoic according to Gold- 

 Fuss and Mac Coy, but Jhering, Moll. 

 p. 78, says that they are met with 

 first in Trias. 



Flemingia De Kon. 1882, Faune II, iii, 94. 



Fusisp)ira Hall 1870, 24th Rep. St. Museum 

 N. York p. 229. 



Glyptobasis De Kon. 1883, Faune, II, iii, 92. 

 Similar to a Trochus. 



Glyptochiton De Kon. 1883, Faune II, iii, 

 211. 



Gosseletia De Kon. 1883, Faune II, iii, 28. 

 The name is already in 1881 preoc- 



26 



