Conchologia systematica, or Complete system of conchology- in which the Lepades and conchiferous Mollusca are described and classified according to their natural organization and habits (1841) (14578860017)

Identifier: conchologiasyste02reev (find matches)
Title: Conchologia systematica, or Complete system of conchology: in which the Lepades and conchiferous Mollusca are described and classified according to their natural organization and habits
Year: 1842 (1840s)
Authors: Reeve, Lovell, 1814-1865 Sowerby, G. B. (George Brettingham), 1812-1884, ill Dall, William Healey, 1845-1927, former owner. DSI Bailer Bros. (Firm), binder. DSI
Subjects: Shells Mollusks
Publisher: London, Longman, Brown, Green and Longmans New York, Wiley and Putnam (etc., etc.)
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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Text Appearing Before Image:
LAMIA. Testa cymbaeformis, externa, illoculosa, simpliciter involuta. The plan which we have here adopted for the ordinal division of the Cephalopods was introduced more than a hundred years since by Brey-nius, a naturahst of Dantzic. It is not, as before stated, in good concord-ance with the organization of the animals, for, according to the structure of the breathing apparatus, as shown by Mr. Owen, there is a much closer affinity between the Spirula and the Argonaut, than between the siphoniferous genera Spirula and Nautilus. So few of the Cephalopodsare conchiferous, that it is extremely difficult to introduce a natural arrangement of them in a System of Conchology. The anatomical characters of the Mollusca can only be strictly followed in treating of the entire series, both conchiferous and naked; and it only remains for us, therefore, to characterise the monothalamous kinds referred to this order as having a light, open, papyraceous, boat-shaped shell, which is external Plate CCXCIX.
Text Appearing After Image:
ORDER II. MONOTHALAMIA. 305 and simply involuted. Tliey are few in number, and included in the following genus: Argonauta. ARGONAUTA, Linneus. Testa subnavicularis, illoculosa, papyracea, tenuissima, in spiram discoideam leviter convoluta; spira bicarinata, prop in testae aperturamsubimmersa; carinis plus minusve tuberculosis. The Nautilus primus, or Paper Nautilus of Aristotle, was separated about the middle of the eighteenth century from his Nautilus secundus, or Pearly Nautilus, by Gualtieri, an Italian conchologist, under the title of Cymhium: it was distinguished too by his Swedish contemporary Lin-naeus about the same time under that of Argonauta ; and the increasing celebrity of that writer soon obtained for his name the preference. The observations of those authors were, however, still confined to the shell; the Professor of Pisa added little more to the early history of the Ai-go-naut than the Professor of Upsal; and the