Small goose barnacles attached on a ram's horn squid shell washed on the beach. Port Alfred, Eastern Cape (2024). White small stalked barnacle with a light-brown always short peduncle. Body shelled with thick striated plates. Scutum round and broad, with a ridge so forward that it appears not to have one. Tergum triangular and pointy.… Continue reading Small goose barnacle (Lepas pectinata)
Tag: Cirripedia
Goose barnacle (Lepas anserifera)
Close-up of goose barnacles attached on the sole of a shoe washed ashore. Port Alfred, Eastern Cape (2024). Off-white stalked barnacle. Shelled body flat, triangular in shape and compressed, wide at bottom and narrowing to a point.Shell plates (5) calcareous, not overlapping and with no gaps in between, with orange edges, covered with radiating ridges… Continue reading Goose barnacle (Lepas anserifera)
Toothed barnacle (Chthamalus dentatus)
Toothed barnacles on a rock face. Cape Agulhas, Western Cape (2020) - iNaturalist A small, flat, dirty-white barnacle with a membranous (not calcareous) base. The projecting, finger-like ridges on the six shell plates produce the characteristic star-shaped outline. Between 5 - 10 mm. Common in the upper intertidal, especially on the South and East coasts.… Continue reading Toothed barnacle (Chthamalus dentatus)
Grey volcano barnacle (Tetraclita serrata)
Close-up of a grey volcano barnacle. Mouille Point, Cape Town, Western Cape (2020) - iNaturalist Tall, dark-grey and volcano-shaped, with only four strongly-ribbed shell plates, the edges of which are difficult to distinguish. About 20 mm. One of the dominant invertebrates in the mid-intertidal zone of moderately sheltered shores. Two Oceans: A Guide to the… Continue reading Grey volcano barnacle (Tetraclita serrata)
Crevice anemone (Anthopleura michaelseni)
Details of the spherules, and the long tentacles of the crevice anemone. Fishhoek, Western Cape (2020) - iNaturalist Also called long-tentacled anemone. Column with large sticky pads, to which shells and gravel adhere. Dark stripes usually radiate from mouth to the 96 long pink-to-brownish tentacles. Spherules present. Up to 150 mm in diameter, but commonly… Continue reading Crevice anemone (Anthopleura michaelseni)
Eight-shell barnacle (Octomeris angulosa)
Old barnacle at the edge of a mussel bed (blue mussel, Mytilus galloprovincialis), with the circle of apertures forming at its base. Yzerfontein, Western Cape (2020). Moderately large with eight shell plates extremely rugged, irregular, massive, generally much corroded, steeply conical or even sub-cylindrical. Colour dirty-white, often slightly tinted yellow from the investing membrane, and… Continue reading Eight-shell barnacle (Octomeris angulosa)
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