78 Cincinnati Society of Natural History. 



1852, Goeppert* described, under the name of Haliserites 

 desc/ienianus, a fossil which presents everj' appearance of 

 bein^ the same as Brongniart's Fucoides strictus.i In 1874, 

 Schimper+ placed Fucoides aniiquus as the type of the genus, 

 but it is difficult to understand how this can be so when this 

 species was not described until 1828, long after many other 

 forms had been described. This same refeience is made by 

 Roemer in i88o.|| 



In 1865, Oswald Heer§ mentioned the occurrence of three 

 species of Fucoides under the names of rigidus, procerus and 

 moescJiii. The last is the only one figured, and it is a very 

 problematical form, having something the shape of Billings's 

 genus Arthraria. It certainly is not congeneric with Fucoides 

 strictus. Finally, the last species we have found referred to 

 the genus is Fucoides rouaulti Lebsc. This was described in 

 i883,* but mentioned again in 1886.*^ 



In the preceding pages it has been the endeavor of the 

 author to present an accurate statement of the genus 

 Fucoides, and to give accurate bibliographic items regarding 

 the species referred to the genus at various times. Man}- 

 points have been left untouched which might have been elab- 

 orated ; and it is hoped that the few suggestions made may be 

 acceptable to the readers of the paper. In the course of the 

 preparation of this and the paper upon Sco/it/ius, a large 

 amount of material has been collected. It is the hope of the 

 author to present some of this to the public upon some 

 future occasion. He would feel greatly obliged if his readers 

 would call his attention to errors in the list of species given 

 below. 



The following list gives the names of species that have 

 been described as Fucoides, with the authority and date and 

 the name which is recognized at the present time. It is very 

 probable that further study will materially change many of 

 the latter names. Some have been referred to many genera 



'•'Novo. Acto. Acad. Caesar. Leopol. — Carol., vol. x.xii, supple., p. 1S5. 



tSee note on a previous page, 



tTraite de Pala:ontologie Vcgelale, vol. i, p. 442. 



i|Leth:ca Pala-ozoici. Text. Erste Lief., vol. i, p. 132. 



^Dle Urwelt der Schweiz, pp. 70, 100. 



HCEuvres posthemes de Roiiault, 1883. 



"■^'BuU. Geol. Soc. l-"rance. 3d scr., t. 14, 18S6, p. 794. 



