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A Manual of Conchology: According to the System Laid Down by Lamarck, with the Late Improvements by De Blainville. Exemplified and Arranged for the Use of Students.Wyatt, Thomas

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A Manual of Conchology: According to the System Laid Down by Lamarck, with the Late Improvements by De Blainville. Exemplified and Arranged for the Use of Students.

Name: A Manual of Conchology: According to the System Laid Down by Lamarck, with the Late Improvements by De Blainville. Exemplified and Arranged for the Use of Students.
Author: Wyatt, Thomas

Wyatt, Thomas

Mollusks

Shell generally very thick, pearly within, covered with epidermis;
summits eroded, dorsal, and sub-interior; besides a long lamellous tooth
under the ligament, the hinge is formed by a double precardinal tooth,
more or less compressed, and dentated irregularly on the left valve,
simple on the right valve; ligament external, dorsal, and post-apicial;
muscular impressions well marked.

                           Unio sinuata.
                           U. elongata.
                           U. crassidens.
                           U. Peruviana.
                           U. rariplicata.
                           U. pupurata.
                           U. ligamentina.
                           U. obliqua.
                           U. retusa.
                           U. rarisulcata.
                           U. coarctata.
                           U. purpurascens.
                           U. radiata.
                           U. brevialis.
                           U. rhombula.
                           U. carinifera.
                           U. Georgina.
                           U. clava.
                           U. recta.
                           U. naviformis.
                           U. glabrata.
                           U. nasuta.
                           U. ovata.
                           U. rotundata.
                           U. littoralis.
                           U. semirugata.
                           U. nana.
                           U. alata.
                           U. deladonta.
                           U. sulcidens.
                           U. rostrata.
                           U. pictorum.
                           U. Batava.
                           U. corrugata.
                           U. nodulosa.
                           U. varicosa.
                           U. granosa.
                           U. depressa.
                           U. Virginianum.
                           U. luteola.
                           U. marginalis.
                           U. angusta.
                           U. manca.
                           U. cariosa.
                           U. spuria.
                           U. Australis.
                           U. anodontina.
                           U. sub-orbiculata.

_U. pictorum._ The Painter’s Unio. Pl. 8, fig. 6.

Species oval, not auriculated, strong, anterior side rhomboid and
attenuated; the opposite side obtusely acute; the umbones somewhat
warted; concentrically wrinkled; covered with a dusky green epidermis.

_U. sinuata._ The crooked Unio.

Species oval, sub-auriculated; cardinal tooth short, not lamellar or
sub-striated.

_U. sub-orbiculata._ The sub-orbicular Unio.

Species round or almost round; cardinal tooth compressed, elongated, and
often lamellar.


                         2. Hyria. Two species.

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A Manual of Conchology: According to the System Laid Down by Lamarck, with the Late Improvements by De Blainville. Exemplified and Arranged for the Use of Students.

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