350 Forty-fifth Report on the State Museum, 



to be a genuine contribution to the State Museum. By far the 

 greater number of specimens are from familiar outcrops of the 

 K"ew York series of formations, and their source can be approxi- 

 mately indicated without much danger of error. For us the value 

 of this collection lies almost wholly in its New York palaeozoic. 

 fossils ; the few mesozoic and tertiary specimens being from scat- 

 tered and uncertain American and European localities. ' 



Albany Institute Collection. Fossils. 



I. A small series labeled by Prof. Amos Eaton, but without localities 



" 1 Gorgonia ripisteria Nobis" = Polypora celsipora, Hall. 



In a fragment of decomposed Corniferous chert, apparently from 

 western New York. 



The original description of this species is as follows : 



" G. ripisteria, very branching and net-form, spread out like a fan; 

 branchlets subcompressed, coalescent, minutely striated: bark granu- 

 lose. Found at Bethlehem in corniferous limerock; 1^ inches long." 

 (Geological Text Book. 2nd. Ed., p. 43, pi. 4, fig. 47, 1832.) 



" 2 Coscinopora macropora " 



From the Lower Helderberg shaly limestone. 



" C. macropora (large-mouthed net-stone) patella-form, pores orbic- 

 ular, interstices with greater or less punctures. 



"In second graywacke on Becraft Mt., near Hudson. Yery irregu- 

 lar in external form." {Op. cit. p. 43, pi. 5, figs. 59, 60.) 



3 and 4 missing. 



"5 Turbinolia mitrata"=a worn specimen of /Streptelasma corni- 

 culum, Hall. Trenton limestone. 



Original description : 



" T. mitrata (mitred cone, smooth horn), subcompressed on the 

 sides; apex incurved: lamellae thickish, sub-connate and papillose at 

 the surface, unequal, somewhat toothed, forming an ovate, stellate 

 disk. My specimens average an inch in length. Found at Glens 

 Falls." (Op. cit., p. 39, pi. 3, figs. 32, 33.) 



6, V, 8 missing. 



"9 Cyathophyllum ceratites." (CystiphyUum) Corniferous limestone. 



" 10 Lithodendron dichotomum " = Bythotrephis gracilis, Hall. 

 Trenton limestone. 



Original description: 



" L. dichotomum (cylindrical stone tree). Cespetose, erect. Sub- 

 Hex uosc; branches dichotomous, densely striate; little stars excavated 

 •Orbicularly. Very common at Glens Falls, lying between the layers of 



