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Bayerotrochus teramachii, is a species of sea snail, a marine gastropod mollusc in the family Pleurotomariidae.[1]
The shell has a depressed turbinate shape with an apical spire angle of approximately 98 degrees, with inflated body whorls that are exponential in expansion, a clearly impressed suture, and the periphery is rounded and indistinct. The base is highly inflated with a small columellar callus at the center covering roughly 22 percent of the base area. The aperture is oval, the slit is positioned roughly halfway between the periphery and the suture and is relatively long, about 21 percent of the circumference. The shell is lightly sculptured with numerous spiral cords over 30 above the selenizone (the area where the shell growth filled in the slit) and 17 to 19 spiral cords below the selenizone, crossed by strong axial growth lines which gives the effect of a coarse rectangular pattern. The cords are made up of very fine hemispherical beads. The base has fine microscopically beaded spiral cords.
The protoconch and primary whorls are a dull cream color or white, the rest of the shell is a golden orange, with a golden metallic iridescent sheen. The entire teleoconch (body whorls) has deep orange axial streaks and flammules. The selenizone has 4 to 5 spiral cords and is usually concave in profile. The base is the same base color as the body, and the interior of the aperture is thinly nacreous (pearly). The operculum is roughly circular, light brown, multispiral, and chitinous. Size range: 64 to 175 mm diameter.[2][3]
This species has been found at depths of 180 to 500 meters over a large area of the North West Pacific from Japan to the South China Sea, and across to Indonesia and the Philippines.[2]
Bayerotrochus teramachii, is a species of sea snail, a marine gastropod mollusc in the family Pleurotomariidae.
Bayerotrochus teramachii is een slakkensoort uit de familie van de Pleurotomariidae.[1] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1955 door Kuroda.
Bronnen, noten en/of referenties
Bayerotrochus teramachii (Kuroda, 1955) é uma espécie de molusco gastrópode marinho da família Pleurotomariidae, nativa da região oeste do oceano Pacífico.[2] Já foi considerada uma subespécie de Bayerotrochus africanus (Tomlin, 1948).[1]
Bayerotrochus teramachii possui concha em forma de turbante, com coloração creme e desenhos de estrias em amarelo ou laranja. Interior da abertura fortemente nacarado.[2] As espécies do gênero Bayerotrochus são geralmente mais frágeis, arredondadas e menos esculpidas em sua superfície do que os outros três gêneros viventes de Pleurotomariidae.[carece de fontes?]
Exemplares vivos de B. teramachii em aquário do Japão.
Esta espécie foi coletada na região oeste do oceano Pacífico, em uma extensão que vai da costa do Vietnã ao Japão.[2]
Bayerotrochus teramachii (Kuroda, 1955) é uma espécie de molusco gastrópode marinho da família Pleurotomariidae, nativa da região oeste do oceano Pacífico. Já foi considerada uma subespécie de Bayerotrochus africanus (Tomlin, 1948).
