| Semimytilus algosus | |
|---|---|
 | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Bivalvia |
| Order: | Mytilida |
| Family: | Mytilidae |
| Genus: | Semimytilus |
| Species: | S. algosus |
| Binomial name | |
| Semimytilus algosus (Gould, 1850) | |
| Synonyms | |
Semimytilus algosus is a species of mussels. A common name for this species is Bisexual mussel, [1] or Dwarf mussel. [2] It is the first species where trioecy was reported in the phylum Mollusca. [3]
Individuals can be up to 42 or 50 millimetres (1.7 or 2.0 in) in size. [1] [4]
The species reproduces sexually. [1] In the past this species was described as simultaneous hermaphroditic but it was later confirmed the species is trioecious. It is believed this species evolved from a gonochoric ancestor. [3]
Its habitat is rocky shores. [5] The species has been found off the coasts of South Africa and is native to Chile. [6] The species is also invasive off the coast of Angola and Namibia. [7]
The African penguin, also known as Cape penguin or South African penguin, is a species of penguin confined to southern African waters. Like all penguins, it is flightless, with a streamlined body and wings stiffened and flattened into flippers for a marine habitat. Adults weigh an average of 2.2–3.5 kg (4.9–7.7 lb) and are 60–70 cm (24–28 in) tall. The species has distinctive pink patches of skin above the eyes and a black facial mask. The body's upper parts are black and sharply delineated from the white underparts, which are spotted and marked with a black band.
The white-bellied yellow bat or white-bellied house bat, is a species of vesper bat in the genus Scotophilus, the house bats. It can be found in Angola, Benin, Botswana, Burkina Faso, Cameroon, Central African Republic, Chad, Ivory Coast, Gambia, Ghana, Guinea, Guinea-Bissau, Kenya, Mali, Mauritania, Namibia, Niger, Nigeria, Senegal, Sierra Leone, Sudan, Togo, Uganda, and Zambia. It is found in dry and moist savanna and open woodland. It is a common species with a very wide range, and the International Union for Conservation of Nature has assessed its conservation status as being of "least concern".
Tomopterna ahli, commonly known as the Damaraland sand frog or Damara sand frog, is a species of frog in the family Pyxicephalidae. It is found in central to north-western Namibia and southwestern Angola.
Perna perna, the brown mussel, is an economically important mussel, a bivalve mollusc belonging to the family Mytilidae. It is harvested as a food source but is also known to harbor toxins and cause damage to marine structures. It is native to the waters of Africa, Europe, and South America and was introduced in the waters of North America.
Mytilus is a cosmopolitan genus of medium to large-sized edible, mainly saltwater mussels, marine bivalve molluscs in the family Mytilidae.
Mytilopsis leucophaeata is a species of small bivalve mollusc in the false mussel family, Dreissenidae. It is commonly known as Conrad's false mussel or the dark false mussel.
Choromytilus meridionalis, the black mussel, is a species of bivalve. It is a marine mollusc in the family Mytilidae. They are part of the Phylum Mollusca which is the second-largest phylum of invertebrates with around 85,000 species. In this article, we will be discussing the taxonomy, morphology, ecology, reproduction, and distribution of Choromytilus meridionalis.
The Mediterranean mussel is a species of bivalve, a marine mollusc in the family Mytilidae. It is an invasive species in many parts of the world, and also an object of aquaculture.
Cinysca dunkeri is a species of sea snail, a marine gastropod mollusk in the family Areneidae.
Geukensia demissa is a species of mussel, a marine bivalve mollusk in the family Mytilidae, the true mussels. This species is native to the Atlantic coast of North America. The common names for this species include ribbed mussel, Atlantic ribbed marsh mussel and ribbed horsemussel. However, the common name ribbed mussel is also used for the Southern Hemisphere mussel Aulacomya atra. The appearance of the shell is grooved and oval in shape. The interior of this mussel is tinted purple
Lithophaga aristata, or the Scissor date mussel, is a species of bivalve mollusc in the family Mytilidae. It can be found along the Atlantic coast of North America, ranging from North Carolina to Texas and the West Indies.
The Benguela Current Commission, or BCC, is a multi-sectoral inter-governmental, initiative of Angola, Namibia and South Africa. It promotes the sustainable management and protection of the Benguela Current Large Marine Ecosystem, or BCLME. The BCC was established in January 2007 through the signing of an Interim Agreement between the governments of Angola, Namibia and South Africa. Then, on 18 March 2013, the three governments signed the Benguela Current Convention, an environmental treaty that entrenches the Benguela Current Commission as a permanent inter-governmental organization.
The squirrel galagos are a group of four species of strepsirrhine primates. They are classified in the genus Sciurocheirus of the family Galagidae.
Mytella strigata is a bivalve, commonly known as the charru mussel or charrua mussel. This species was described by Sylvanus Charles Thorp Hanley based on a specimen from the Philippines. It was found in Central and South America and by Alcide d'Orbigny, a French naturalist, in 1842, where it was assigned the synonym Mytilus charruanus. They are less than an inch long (2.5 cm), and range from brown to black in color.
The Namib day gecko is a species of lizard in the family Gekkonidae. The species is found in the deserts of Namibia and southern Angola. It is the type species of the genus Rhoptropus.
Bradfield's Namib day gecko is a species of lizard in the family Gekkonidae. The species is endemic to Namibia. This species was first described in 1935 by the British-born, South African zoologist John Hewitt, who gave it the name Rhoptropus bradfieldi in honour of the South African naturalist and collector R.D. Bradfield (1882–1949).
The eastern dwarf galagos are a group of five species of strepsirrhine primates of the family Galagidae, native to East Africa. They were formerly classified in the genus Galagoides but have been moved to their own genus, Paragalago, based on genetic evidence, and supported by differences in vocalizations and morphology. The three western/Congolian species remain in Galagoides.
Trioecy, tridioecy or subdioecy, is a sexual system characterized by the coexistence of males, females, and hermaphrodites. It has been found in both plants and animals. Trioecy, androdioecy and gynodioecy may be described as mixed mating systems.
The Angola - Benguela front (ABF) is a permanent frontal feature situated between 15° and 17°S off the coast of Angola and Namibia, west Africa. It separates the saline, warm and nutrient-poor sea water of the Angola Current from the cold and nutrient-rich sea water associated with the Benguela Current.
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