Copy 1

The Linnaean system of conchology ... / By John Mawe.

  • John Mawe
Date:
1823
Catalogue details

Licence: Public Domain Mark

Credit: The Linnaean system of conchology ... / By John Mawe. Source: Wellcome Collection.

    40/300 (page 12)
    the shell is usually of a pure or dusky-white: how- ever, the absence of color is amply compensated by the beautiful fret-work with which the shells of this genus are adorned. In some species the reticulations are so delicate in their structure,as to resemble the finest lace; in others the texture is coarser, and approaches nearer to small basket-work; and in the P. costata the shell is covered with regular, elevated, jagged, or scalloped ribs, elegantly disposed. The Pholades are found occupying separate and distinct habitations, which they form in lime- stone, indurated clay, wood, coral, &c.; even the thick oak planks of ships are pierced by them: and as they advance in growth, they enlarge their habi- tation within, leaving the small aperture, by which they originally entered, of its primitive size. The animal possesses the property of emitting a phosphorescent liquor, which shines with brilliancy, and illuminates whatever it touches. The American, Indian, and European seas supply all the species that are known. tis common in limestone, sandstone, &c. on the coast of England. The Pholas derives its name from gwAéw, alluding to its custoin of forming cells in rocks, &e. Scientific Name. Locality. Common Name. Dactylus ---++-- Europe -+++++ seer eens Prickly Piercer- - Costata + +.+.66- Virginia, West Indies, Ribbed-- do -- South Europe, South (GaTroOling) swe se seinteniers Striala ceeeeees South Europe, E.!.Ocean Striated-. do «-- Candida +++++++- Europe, America, Britain, White... do --- Bay of Campeachy -++-