File:Bulletin of the Museum of Comparative Zoology at Harvard College (1863) (14597227330).jpg

Identifier: bulletinofmuseu05harv (find matches)
Title: Bulletin of the Museum of Comparative Zoology at Harvard College
Year: 1863 (1860s)
Authors: Harvard University. Museum of Comparative Zoology
Subjects: Zoology Zoology
Publisher: Cambridge, Mass. : The Museum
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: University of Toronto

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42 BULLETIN OF THE MUSEUM OF COMPARATIVE ZOOLOGY. Ptoiie by the Rev. Augustus Wing, that formation is determined to be of LowerSilurian age, and to represent rocks not older than the Cambrian, and notnewer than the Trenton. In Vermont the rocks of a belt of slate which is continuous with the schistsof the Richmond Range in Berkshire County, are found to overlie the Eolianlimestone, and thus the slate series is more recent than that formation, and isconsidered to represent the Hudson River slates. On these grounds. Professor Dana concludes that the limestones of Berkshireare of Calciferous, Quebec, Chazy, and Trenton age, while the schists are of theage of the Hudson River slates. On the supposition that the limestone of the Richmond Valley represents aseries of beds bent double, the thickness of the series is at least 5,000 feet, andon the same supposition the thickness of the mica schist series in the LenoxRange is 4,500 feet, making 9,500 feet of Lower Silurian strata. May 15, 1878.
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No. 4. — Descriptiun of a new species of Corbicula, with Notes onother Species of the Corbiculadse Family. By Temple Prime. Corbicula Moltkiana, nov. spec.FL II. Fig. 2, a, h, c. C. testa loevis, transversa, compressa, subfequilaterali; latere anticobreviore, rotundato, postico obtuso; umbonibus brevibus, obtusis;bmula vix conspicua; epiderniide nigro-fuscesceute, nitente vestita;striis elevatis, regularibus ; margarita violacea. Long. 25; lat. 20; diam. 12 mill. Hab. Sumatra. Collect. University of Copenhagen (two specimens). Compaied with Corh. ducalis, from Java, it is less heavy, less inflated,transversely less rounded, and the striajare less distant. I know of but one other species of Cor-bicula from Sumatra, the puUata, of Phi-lippi, which, judging from the description,must be more spherical and more trigonal than my species. Corbicula ducalis. Count Moltke, of Denmark, to whose memory I dedicate this species,was the possessor of one of the finest collections of his day, which

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