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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.Poe, Edgar Allan

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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

_Shell._ Of a beautiful violet colour, found in numbers floating on the
surface of the ocean, suspended by a vesicular appendage which gives a
rich purple stain. Extremely thin and fragile, spire low, lateral,
pointed, with subcarinated whorls; aperture large, subangular, modified
by the last whorl of the spire, edges disunited, the left formed by the
columella, which is straight, continuing beyond the base, right edge
sharp, with a sinus in the middle. Inhabits the Atlantic Ocean. Three
species.

 Janthina naticoides.
 J. communis.
 J. exigua.


                              FAMILY XIII.

                      MACROSTOMIANA. Four genera.


                     1. Genus _Sigaretus_. Pl. XI.

_Animal._ Body oval, flat beneath; edges of the mantle vertical, thin,
extending beyond the body in all directions, sloped anteriorly; the
mantle itself dilated superiorly.

_Shell._ More or less thick, internal, without colour, much depressed,
with a short, low, lateral spire; left edge of the aperture trenchant;
two lateral muscular impressions very distant. Inhabits the Indian
Ocean. Two species are found in S. America. Six species.

 Sigaretus convexus.
 S. Haliotoideus.
 S. cancellatus.
 S. lævigatus.

        ·       ·       ·       ·       ·

 S. perspectivus.*
 S. maculatus.*


                     2. Genus _Stomatella_. Pl. XI.

_Animal._ Unknown.

_Shell._ Distinguished from the Stomatia by being destitute of a
transverse rib, orbicular, oblong ear-shaped, imperforate; aperture
entire, large, sublongitudinal; right lip effuse, dilated, open.
Inhabits the Indian Ocean. Five species.

 Stomatella imbricata.
 S. rubra.
 S. sulcifera.
 S. auricula.
 S. planulata.


                      3. Genus _Stomatia_. Pl. XI.

_Animal._ Unknown.

_Shell._ Ear-shaped, imperforate, spire prominent; aperture entire,
large, oblong; right margin and columella equally raised; a transverse
and tuberculated rib on the back. Inhabits the Indian Ocean. Two
species.

 Stomatia phymotis.
 S. obscurata.


                      4. Genus _Haliotis_. Pl. XI.

_Animal._ Body oval, much depressed, slightly spiral posteriorly,
provided with a large foot doubly fringed at its circumference; head
depressed; tentacula a little flattened; eyes at the summit of prismatic
peduncles situated at the external side of the tentacula; mantle very
thin, deeply slit at the left side; the two lobes pointed, and forming
by their union a kind of canal to conduct water into the branchial
cavity, and including two very long unequal branchial combs.

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