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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

Science

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._ Oval with straight spire and canal, middling generally
wrinkled, furnished with varices, rare, scattered, and preserved in
longitudinal rows; aperture suboval, elongated, terminated by a short
open canal; the columellar edge less excavated than the right and
covered by a callosity; operculum horny, oval, round, and rather large.
Found in the Northern and Mediterranean seas. Thirty-one living species.
Three fossil.

 Triton variegatum.
 T. lampas.
 T. corrugatum.
 T. lotorium.
 T. cynocephalum.
 T. retusum.
 T. vespaceum.
 T. clathratum.
 T. maculosum.
 T. cutaceum.
 T. undosum.
 T. nodiferum.
 T. scorbiculator.
 T. succinctum.
 T. femorale.
 T. tripus.
 T. clavator.
 T. chlorostomum.
 T. subdistortum.
 T. clandestinum.
 T. dolarium.
 T. australe.
 T. Splengleri.
 T. pileare.
 T. pigrum.
 T. canaliferum.
 T. tuberosum.
 T. anus.
 T. cancellatum.
 T. rubecula.
 T. tranquebaricum.


                             FAMILY XVIII.

                          ALATA. Three genera.


                    1. Genus _Rostellaria_. Pl. XI.

_Animal._ Entirely unknown.

_Shell._ Subdepressed, turriculated, with a produced and pointed spire;
aperture oval on account of a rather large excavation of the columellar
edge, the right margin dilating with age and having a sinus contiguous
to the pointed canal which terminates the shell; an operculum. This
genus is distinguished from the Strombus by having a sinus in the lower
part of the right margin contiguous to the canal. Inhabits the European
seas; four living species. Three fossil.

 Rostellaria curvirostris.
 R. rectirostris.
 R. pespelicani.
 R. cancellata.


                    2. Genus _Pteroceras_. Pl. XII.

_Animal._ See Strombus, below.

_Shell._ Oblong-ovate; canal elongated, attenuated and often closed;
right margin dilating by age into an expanded digitated wing, attached
to and covering a short spire with a sinus in the lower part not
contiguous to the body. Distinguished from the Strombus by not having
the canal at the base shortened or truncated, and from the Rostellaria
by having the sinus of the right margin distant from the body. Found in
the Equatorial seas. Seven species. Five fossil.

 Pteroceras truncata.
 P. lambio.
 P. scorpio.
 P. chiragra.
 P. millepeda.
 P. pseudoscorpia.
 P. aurantia.


                     3. Genus _Strombus_. Pl. XII.

_Animal._ Spiral; the foot rather wide anteriorly, compressed
posteriorly; mantle thin, forming a prolonged fold anteriorly, whence
issues a sort of canal; head very distinct; mouth a vertical slit at the
extremity of a proboscis, provided in the inferior median line with a
lingual band having prickles flexed posteriorly; tentacular appendages
cylindrical, thick, and long, with the eyes at their extremity.

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