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Erosaria poraria (Linnaeus 1758)

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Comprehensive Description

    Erosaria poraria
    provided by wikipedia

    Erosaria poraria, common name the purple-based cowry or porous cowry, is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.[1]


    The shells of these quite common cowries reach on average 16–19 millimetres (0.63–0.75 in) of length, with a minimum size of 10 millimetres (0.39 in) and a maximum size of 28 millimetres (1.1 in). The surface of the shell is smooth and shiny, the colors usually range from pale brown to dark brown, with numerous small yellowish spots. The base and the margins are purple (hence the common name), while the teeth are commonly white. In the living cowries the mantle is bright red or purplish, with quite long and slightly tree-shaped sensorial papillae. The lateral flaps of the mantle may hide completely the shell surface and may be quickly retracted into the shell opening. Erosaria poraria is quite similar to Erosaria albuginosa, but in the second cowry the purple color of the base is paler.

    A shell of Erosaria poraria, lateral view, anterior end towards the right
    A shell of Erosaria poraria, dorsal view, anterior end towards the left
    A shell of Erosaria poraria, dorsal view, anterior end towards the left


    This species is widely distributed throughout most of the Indo-Pacific, along East Africa (Somalia, Aldabra, Kenya, the Mascarene Basin, Mauritius, Réunion and Tanzania), in the Indian Ocean and in the Pacific Ocean (Chagos, the Seychelles, Sri Lanka, India, Malaysia, Indonesia, New South Wales, New Caledonia, Philippines,[3] Samar Island, Polynesia, Marshall Islands and Hawaii).


    Erosaria poraria lives in shallow intertidal water in tropical reef,[3] mainly at 3–10 metres (9.8–32.8 ft) of depth. It is commonly found on dead corals, under large rocks or in caves.


    1. ^ a b Erosaria poraria (Linnaeus, 1758). Retrieved through: World Register of Marine Species.
    2. ^ Gastropods.com : Erosaria poraria; accessed : 21 October 2010
    3. ^ a b Angelo Mark P. Walag; Mae Oljae P. Canencia (2016). "Physico-chemical Parameters and Macrobenthic Invertebrates of the Intertidal Zone of Gusa, Cagayan de Oro City, Philippines". Advances in Environmental Sciences - International Journal of the Bioflux Society. 8 (1): 71–82. Retrieved 2015-12-08..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output q{quotes:"""""'"'"}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}(registration required)
    • Verdcourt, B. (1954). "The cowries of the East African Coast (Kenya, Tanganyika, Zanzibar and Pemba)". Journal of the East Africa Natural History Society 22(4) 96: 129–144, 17 pls.
    • Burgess, C. M. (1970). The Living Cowries. AS Barnes and Co, Ltd. Cranbury, New Jersey