• Source: Afrolittorina knysnaensis

Afrolittorina knysnaensis, common name the southern periwinkle, is a species of sea snail, a marine gastropod mollusk in the family Littorinidae, the winkles or periwinkles.




Description


The size of the shell varies between 9 mm and 15 mm. Its color varies from brown with a pattern of dots with a dark ring around its every whorl, to pure black. The smooth shell has a conical shape with a short spire. The aperture is subcircular and has a transparent, horny operculum.




Distribution


This marine species occurs off Namibia to Southern KwaZuluNatal; in the Indian Ocean off Réunion.




References



Paul Bartsch (1915), Report on the Turton Collection of South African Marine Mollusks, with Additional Notes on other South African Shells Contained in the United States National Museum; Smithsonian Institution, United States National Museum, bulletin 91.
Kilburn, R.N. & Rippey, E. (1982) Sea Shells of Southern Africa. Macmillan South Africa, Johannesburg, xi + 249 pp. page(s): 50
Steyn, D.G. & Lussi, M. (1998) Marine Shells of South Africa. An Illustrated Collector’s Guide to Beached Shells. Ekogilde Publishers, Hartebeespoort, South Africa, ii + 264 pp. page(s): 32
George M. Branch,C. l. Griffiths,M. L. Branch,L. E. Beckley, Two Oceans: A Guide to the Marine Life of Southern Africa
Reid, D.G. & Williams, S.T. (2004) The subfamily Littorininae (Gastropoda: Littorinidae) in the temperate Southern Hemisphere: the genera Nodilittorina, Austrolittorina and Afrolittorina. Records of the Australian Museum 56: 75122




External links


"Afrolittorina knysnaensis". Gastropods.com. Retrieved 15 January 2019.
Animal Base : Afrolittorina knysnaensis
Ispot.org: Afrolittorina knysnaensis
Worldwide Molluscan Species Data Base: Afrolittorina knysnaensis

Kata Kunci Pencarian:

• Afrolittorina knysnaensis
• Afrolittorina
• Nodilittorina
• List of marine invertebrates of the Cape Peninsula and False Bay