BIBLIOGRAPHY OP PALAEOZOIC CRUSTACEA 21 



CLARKE (J. M.)— Continued. 



Fauna of the (7rade Greve Limestones. Phacops logani Hall and var. gaspensis nov. 

 Dalmanites murnrus Cheeii, D. dolhcl'i nov., D. lo^vi nov., D. veiti nov., D. IVhheavesi 

 nov., D. perceensis nov., D. emarginaiiis Hall, D. gaveyi nov., D. ( Froholium) bairji 

 nov., D. (P.) esnoufi nov., D. phucnptyx H. k C. 



Proetus phocinu Hillings. Cordania hecraflensis Clarke, ('.. gtiseplon nov. Liclias bella- 

 miciis nov. Liclias (Gaspel'iclias) forillonia nov. Ceratocepliala roblnia nov. Aparchites 

 nov. liythocyprh sp. nov. Phacops ( PliacupiJeUa) correlator Clarke. 



Early Dcvonic History of New York and Ea.stcrn North 



America. 



N. Y. State Miis., Mem. 9, part 2. 



The author illustrates Dalmanites micruriis (ireen Proetus ^p. Broriteus Barrandii 

 Hall. Pterygotus sp. from the Daihouse Beds. 



From the Moose River sandstone the following Crustacea: 



Homalonotus cf. variiixemi Hall. Dalmanites pleuroptyx Green, D. ploratus Clarke 

 Halmanites sp. 



From the Chapman sandstone: Phacops (Phacopidella) mylanderi Clarke. Homal- 

 onotus vanuxemi Hall. Dalinnnites cf. micrurus Cireen. 



New York Oriskany Dalmanites emarginatus Hall. 



and Ruedemann (Rudolf). ^lode of life of the Eiirypteridae. 



Science, new ser., vol. 32, p. 224, Aug. 12, 1910. 



and Ruedemann (Rudolf). The Eurypterida of New York. 



Memoir 14, New York State Museum, vol. 1, Text vol. 2, plates, 1912, 638 pp., 88 

 plates, 121 text figures. 



Reviewed in Am. Jour. Sci., vol. 35, No. 298, 1913, p. 458. 



The reviewer remarks (Schuchert) : "It is truly a moiumiental work and a model 

 for all paleontologists to follow." 



In this work one can study Eurypterida from an\- view poiiu permitted the palaeon- 

 tologist. Here we find their chronology, their develojimefit from baby stages, pro- 

 phetic of unknown ancestors, to adults; and their relations to scorpions, horseshoe crabs, 

 Trilobites and even to hypothetic annelids. 



The authors illustrate in text and jilates the following species: 



Strabops thacheri Beecher. 



Eurypterus. 



The American species of Eurypterus readil}' fall into iliree subdivisions: 



(A) Tliose that groups themseh'es aroinul E. remipes. 



(B) Those that vary in different directions from this group, but are approximately 

 contemporary — E. Dekayi, etc. 



(C) The later Carbonic species. 

 Under this genus the authors describe: 



Eurypterus remipes DeKay, E. lacustris Harlan, E. lacusiris Hall var. pachychirus 

 Hall, E. DeKayi Hall, E. maria Clark. This species differs from American congeners, 

 due to the terete form of the bod\- that apparently is witliout preabdominal expansion. 



Eurypterus pygmaceus Salter differ but slightly. Eurypterus megalops nov., E. 

 microphtlialmus Hall. The authors refer E. eriensis Whitfield, to this species. Eury- 

 pterus pittsfordensis Sarle, E. ( Dolichopterus ? ) prominens Hall, E. pustulosus Hall. 

 Authors refer E. giganteus Pohlman anil E. globicaudatus Pohlman to this species. 

 Eurypterus pristinus nov., E. ranllarva nov., E. ? (Dolichopterus ?) stellatus nov., E. 



