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The Conchologist's First Book: A System of Testaceous Malacology, Arranged Expressly for the Use of Schools, in Which the Animals, According to Cuvier, Are Given With the Shells, a Great Number of New Species Added, and the Whole Brought Up, as Accurately as Possible, to the Present Condition of the Science. — John Shaqi

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The Conchologist's First Book: A System of Testaceous Malacology, Arranged Expressly for the Use of Schools, in Which the Animals, According to Cuvier, Are Given With the Shells, a Great Number of New Species Added, and the Whole Brought Up, as Accurately as Possible, to the Present Condition of the Science.

Name: The Conchologist's First Book: A System of Testaceous Malacology, Arranged Expressly for the Use of Schools, in Which the Animals, According to Cuvier, Are Given With the Shells, a Great Number of New Species Added, and the Whole Brought Up, as Accurately as Possible, to the Present Condition of the Science.
Author: Poe, Edgar Allan

Poe, Edgar Allan

Mollusks

The few species of this genus yet known have been blended, by previous
authors, either with the Mya or Solen, but from either they are easily
distinguished.

_Shell._ Covered with epidermis, slightly irregular, elongated, gaping
at both ends, equivalve, exceedingly inequilateral; summits little
marked; hinge toothless; a longitudinal callosity. Ligament exterior,
affixed to very projecting callosities on the shortest side of the
shell; two distinct muscular impressions. Inhabits the North seas. Two
species.

 Glycimeris margaritacea.
 G. siliqua.


                               FAMILY IV.

                          MYARIA. Two genera.


                        1. Genus _Mya_. Pl. VI.

_Animal._ Subcylindrical, enveloped in a mantle pierced only with one
interior and inferior hole for the passage of a very small and conical
foot; the tubes very considerable, and completely united; a tolerably
large mouth, oval, and with simple lips; very small labial appendages:
branchial laminæ inconsiderable; the external very short, the internal
united with that of the opposite side.

_Shell._ Surrounded with a thick epidermis, which is prolonged upon the
tubes and the edges of the mantle of the animal; tolerably solid, with
fine trenchant edges; the summits very little marked; hinge dissimilar;
one or two oblique cardinal folds, divergent, behind a horizontal
spoon-shaped hollow upon the left valve, corresponding with a hollow;
horizontal and cardinal in the right valve; two distinct muscular
impressions. Inhabits the British and American coasts. Eight species.

 Mya truncata.
 M. arenaria.
 M. erodona.
 M. solenimyalis.

        ·       ·       ·       ·       ·

 M. hyalina.*
 M. cancellata.*
 M. acuta.*
 M. mercenaria.*


                      2. Genus _Anatina_. Pl. VI.

_Animal._ Unknown.

_Shell._ Transverse, subequivalve, gaping at both valves, or in one
only; no cardinal teeth; one broad primary tooth in both valves,
projecting interiorly; a lateral plate running obliquely under the
primary teeth. Sometimes there is a fissure extending from the apex,
giving the appearance of a second plate or rib. Inhabits the British and
American seas. Twelve species.

 Anatina laterna.
 A. truncata.
 A. subrostrata.
 A. trapezoides.
 A. rugosa.
 A. imperfecta.
 A. longirostris.
 A. globulosa.
 A. myalis.
 A. rupicola.

        ·       ·       ·       ·       ·

 A. Leana.*
 A. papyracea.*


                               FAMILY V.

                        MACTRACEA. Seven genera.


                      1. Genus _Lutraria_. Pl. VI.

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