36 NEW YORK STATE MUSEUM 



tigation of a large number of new and interesting types of fossils 

 which had been brought out from the general collection during the 

 selection of material for exhibition. These fossils include about 

 50 species and a number of genera new to science, nearly all from 

 the rocks of New York; among them a considerable number of 

 new starfishes (11 species and 2 genera). About 25 genera and 

 species hitherto incompletely known are discussed with the help 

 of more complete material. The results of these investigations will 

 presently be printed in bulletin form with full illustrations. The 

 scope of this work is provisionally indicated by the following list 

 of species discussed : 



Subkingdom Coelenterata 



Plectodiscus, new genus 



Plectodiscus molestus nov. Portage beds. Ithaca, N. Y. 



Airograptus, new genus. Beekmantown limestone, Deep kill, Melrose, 

 N. Y. 



Inocaulis kirki nov. Trenton limestone, Kirkfield, Ont. 

 Subkingdom Echinoderma 

 a Cystoidea 



Pleurocystites squamosus mut. m a t u t i n a nov. Tren- 

 ton limestone, Kirkfield, Ont. 

 b Asterosoa 



Clarkeaster, new genus 



Clarkeaster perspinosus nov. Chemung beds. Avoca, N. Y. 



Lepidasterina, new genus 



Lepidasterina gracilis nov. Chemung beds. Avoca, N. Y. 



Urasterella ruthveni mut. arisaigensis nov. Arisaig 

 series, Nova Scotia 



U. 1 u t h e r i . Portage beds, Naples, N. Y. 



U. Stella. Portage beds, Naples, N. Y. 



U. schucherti. Chemung beds, Kirkwood, N. Y. 



Urasterella sp. nov. Ithaca beds, Messengerville, N. Y. 



Eugasterella bicatenulata nov. Portage beds, Naples, N. Y. 



E. a r a n e a nov. Portage beds. Park Station, N. Y. 



Encrinaster pusillus. Chemung beds, Elmira, N. Y. 



Klasmura, new genus 



Klasmura mirabilis nov. Portage beds, Naples, N. Y. 



K. clavigera. Portage beds, Naples, N. Y. 



Class Brachiopoda 



Lingula semina nov. Pittsford shale, Pittsford, N. Y. 



L. testatrix nov. Bertie waterlime, Litchfield, N. Y. 



L. vie in a nov. Pittsford shale, Farmers Mills, N. Y. 



,L. subtrigona nov. Manlius limestone, Union Springs, N. Y. 



Lingulasma (?) elongatum nov. Schenectady shale, 

 Schenectady, N. Y. 



Orbiculoidea molina nov. Pittsford shale, Farmers Mills, 

 N. Y. 



