N. A. INVERTEBRATE PALAEONTOLOGY. 7 1 



Dall, W. n, — Livst of Marino Mollusca comj)risins the Quaternary Fos- 

 sils and recent forms from American localities between Cape Hat- 

 teras and Caj)e Ifoque, including the Bermudas. Bull. TJ. IS. Ge'd. iSur- 

 vey, No. 24, pp. 1-336. 1885. Washington. 

 A bibliography of the works consulted in making up this list is also 



given. 



Dames, W. — E. W. Claypole : On the Occurrence of the Genus Dalrha- 

 Dites in the Lower Carboniferous Rocks of Ohio. Geol. Mag., 1884, 

 pp. 303-307 uud Holzschnitte. Neu. Jaftrb. fur 2[in. Geol. (0 Pal., 1 885, 

 Band i, p. 102. Stuttgart. (Abstract.) 



Daivies, W. — Ch. D. Walcott : Appendages of the Trilobite. tScunce, 

 vol. Ill, No. 57, 1884, pp. 279-281. N^eu. Jalirh.fur Mm. Gml. tO Pal., 

 1885, Band i, p. 102. Stuttgart. (Abstract.) 



Dames, W. — R. Jones and J. W. Kirby : On some Carboniferous Ento- 

 mostraca from Nova Scotia. Geol. Mag., 1884, pp. 356-362, t. xii. 

 Weu. Jahrb. fur Min. Geol. & Pal, 1885, Baud i, pp. 106, 107. Stutt- 

 gart. (Abstract.) 



Dames, W. — Rupert Jones and H. Woodward: Notes on Phyllopodi- 

 form Crusfaceans, referable to the Genus Echinocaris, from the Pa- 

 Iseozoic Rocks. Geol. Mag., 1884, pj). 303-396, t. xiii. Neu. Jahrb. 

 fur Min. Geol. & Pal., 1885, Band i, p. 110. Stuttgart. (Abstract.) 



Dames, W. — C. H. E. Beecher: CeratiocaridiB from the Chemung and 

 Waverly Groups at Warren, Pa. Report of Progress PPP, Second 

 Geol. Survey of Pennsylvania, flarrisburg, 1884, pp. 1-22, & 1 u. 2. 

 Keu. Jahrb. fur Min. Geol. di Pal, 1885, Band i, pp. 110, 111. Stutt- 

 gart. (Abstract.) 



Dames, W. — J. Mickleborough : Locomotary Appendages of Trilobites. 

 Geol. Mag., 1884, p. 80-84. Neu. Jahrb. far Min. Geol. & Pal, 1885, 

 Band i, p. 477. Stuttgart. (Notice of.) 



[Dana, J. D.]. — Why are there no Fossils in the Strata preceding the 

 Cambrian? ^w?cr. rTowr. «S'c?'. ,3d ser., vol. xxx, p. 78. July, 1885. New 

 Haven. 



Criticises Mr. Charles Morris's view that the earliest animals, like the 

 youngest stage of animal life generally, had no hard parts to preserve, 

 and that tlie sudden appearance of tribes was simply the a])pearance 

 of species having hard or stony secretions. One difficulty in the way 

 of the theory is presented by the existence of limestone formations of 

 great extent in the Archean which most geologists suppose to be of or- 

 ganic origin, and the existence also of phosphate of lime in large quan- 

 tities which also is material of possible oiganic origin. {ISee Morris, 

 Charles.) 



