288 PALEONTOLOGY. 



assic Fossils collected on the San Juan Exploring Expedition 



[see p. 138]. Pp. 137-148, pis. iii.-viii. 

 Written in 1860, but publication delayed. A few additional re- 

 ferences have been inserted. The new Invertebrates described are Pro- 

 ductus nodosus and Fleurotomaria excelsa, both Carboniferous. H. A. N. 



Nicholson, Prof. H. A. Supposed Laurentian Eossil. Annals, 



ser. 4, vol. xviii. p. 75. 

 The specimens from the metamorphic rocks of Harris, supposed to be 

 organic, have proved to be of a mineral nature. 



Notes on the Palaeozoic Corals of the State of Ohio. Annals, 



ser. 4, vol. xviii. pp. 85-95, pi. v. 



Rectifies some errors in the ' Report on the Corals of Ohio ' (Greol. 



Survey of Ohio ; Palseontology, vol. ii.), and describes the microscopic 



structure of 14 species of Chcetetes, of DeTcayia aitrita, and of Strepte^ 



lasma corniculum. H. A. N. 



Nicholson, Prof. H. A., and James Thomson. Descriptions of some 

 New or Imperfectly-understood Forms of Palaeozoic Corals. Froc. 

 E. Soc. Fjdin. vol. ix. pp. 149, 150. (Abstract.) 



The structure of HeliophyUum described ; and the new genus Cre- 

 pidophylliim proposed for Devonian corals having the general structure 

 of HeliophyUum, but with the -central tabulate area enclosed by a 

 distinct accessory wall. To this genus belongs Diphyphyllum Archiaci 

 and the typical forms of HeliophyUum suhccespitosum. The genus 

 Thysanop>hyllum, founded for Carboniferous corals allied to Lonsdaleia, 

 but with no columella, and having the centre of the visceral chamber 

 occupied by strong horizontal tabulae. T. orientale and T. minus de- 

 scribed as species. The name of Lindstromia proposed for some simple 

 Devonian corals, possibly belonging to the Aporosa, and the species L. 

 columnaris described. H. A. N. 



Descriptions of New Species of Corals from the Carboni- 



ferous Rocks of Scotland. Froc. Fhil. Soc. Olasg. pp. 14, pis. i., ii. 

 Describe and figure 12 new species from the L. Carboniferous of W. 

 Scotland : see Index of Species. 



Organic Remains in the Metamorphic Rocks of Harris. 



Annals, ser. 4, vol. xvii. p. 414. [See Nicholson, above.] 

 Specimens, believed to be of an organic nature, have been obtained by 

 Mr. J. Thomson from the metamorphic rocks of Harris. 



Perceval, S. Gr. On the Discovery of Falceacis cuneata, Meek and 

 Worthen, in Carboniferous Limestone near Henbury, Bristol. 

 Geol. Mag. dec. ii. vol. iii. pp. 267, 268. 



Records the occurrence of specimens of a small coral determined 

 as Falceacis (Sphenopoterium) cuneata. 



Philippi, Dr. R. A. Cothocrinites, ein neues Geschlecht der fossilen 



