240 TWJINTIETH REPORT ON THE STATE CABINET. 



In a paper on Fucoides in the Coal formation,* by M. Lesquereux, 

 the author has stated his opinion that the " peculiar Fucoides serrd''' 

 described by Brongniart in his Vegetaux Fossiles, page 71, tab. 6, figs. 

 7 and 8, should be placed under the Grenus Caulerpites of Sternberg, 

 into which he proposes to admit all the forms described by Prof. Hall 

 under the name of Spirophyton . Regarding the latter, I have, in this place, 

 nothing to say ; but the Fucoides serra of Brongniart is no doubt a 

 species of Grraptolite, and the locality whence it is cited, '■'■ Point e Levi 

 pres Quehec,^^ has afforded many species of Graptolitid^, but no recog- 

 nizable species of Fucoides. In the ^^ Figures and Descriptions of 

 Canadian Organic Remains, ^^ Decade ii, page 84, 1 have given my reasons 

 for believing that the Fucoides serra of Brongniart is identical with 

 Graptolithus hryonoides of Hall (Plate iv, figs. 1-11, and PI. iii, figs. 11 

 and 12 (?), of Decade, and Plate iii, figs. 16 and 17 of this paper), the 

 identity not having been discovered till long after the publication of 

 the last named species. The Fucoides dentatus of Brongniart, from 

 the same locality, is likewise without doubt a graptolite, and probably 

 identical with that described by me as G. {Biphgraptus) pristiniformis. 

 I have no doubt that if M. Lesquereux were to examine these and other 

 Lower Silurian fossils of generally similar character, he would arrive at 

 the same conclusions as myself regarding their nature and relations. 



* On Fucoides in the Coal Formation [with a plate]. By Leo Lesquereux. Read 

 before the American Philosophical Society, May 18th, 1866. 



