. Annual report of the regents of the university of the state of New York on the condition of the State Cabinet of Natural History and the historical and antiquarian collection annexed thereto. * The casts of M. barrisi and M. haskinsi are obtained from solid specimens byremoving the shells, and therefore have not that sharpness of the muscular markingswhich we find in weathered casts. • t Palaeontology of New-York, Vol. ill, plate 39. CONTRIBUTIONS TO PALEONTOLOGY. 53 In the dorsal valve, the muscular impressions differ from Meristella ;the hinge-plate is of somewhat different character, and
. Annual report of the regents of the university of the state of New York on the condition of the State Cabinet of Natural History and the historical and antiquarian collection annexed thereto. * The casts of M. barrisi and M. haskinsi are obtained from solid specimens byremoving the shells, and therefore have not that sharpness of the muscular markingswhich we find in weathered casts. • t Palaeontology of New-York, Vol. ill, plate 39. CONTRIBUTIONS TO PALEONTOLOGY. 53 In the dorsal valve, the muscular impressions differ from Meristella ;the hinge-plate is of somewhat different character, and the median septumis scarcely developed. The characters of the Genus Merista have been illustrated in a pre-ceding Report.* GENUS ^ETZIA (King).! In regard to the entire characters and limitations of this genus,there still exists some doubt and difference of opinion amongpalaeontologists : nor is this difficulty removed by accounts of the genus, and the species referred to it byseveral authors. The genus is described hj Prof. King as follows : A Spiriferidea : in general oval longitudinally; ribbed or striated ; with large punctures. Large valve foraminated at o
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectscience, bookyear1853
