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Patiria miniata, the bat star, sea bat, webbed star, or broad-disk star, is a species of sea star (also called a starfish) in the family Asterinidae. It typically has five arms, with the center disk of the animal being much wider than the stubby arms are in length. [2] Although the bat star usually has five arms, it sometimes has as many as ...
It grows to a diameter of about 30 to 40 centimetres (12 to 16 in). The aboral or upper surface has a patchwork of closely packed spiny plates. The square ones near the edge of the arms are cream coloured and the irregular ones in a band running down the middle of the arms are grey. The margins of the arms are fringed with short white spines.
עַכְשׁוּב ʿak̲šûb̲, mentioned only once in the Hebrew Bible, namely Psalm 140, but manifestly alluded to in Psalm 13:3, and Romans 3:13, seems to have been one of the most highly poisonous kinds of viper, perhaps the toxicoa, also called echis arenicola or scytale of the Pyramids, very common in Syria and North Africa.
L. ciliaris is an orangeish-brown colour and has seven long arms radiating from a small disk. It is a large but fragile sea star, growing to 40 cm (16 in) across, and easily losing its arms (which afterwards regenerate). The arms have parallel sides and taper only near the tip. They have a conspicuous fringe of white spines along the margins.
Starfish that brood their young generally lack a bipinnaria stage, with the eggs developing directly into miniature adults. The bipinnaria is free-living, swimming as part of the zooplankton . When it initially forms, the entire body is covered by cilia, but as it grows, these become confined to a narrow band forming a number of loops over the ...
Marthasterias glacialis is a fairly large starfish with a small central disc and five slender, tapering arms. Each arm has three longitudinal rows of conical, whitish spines, usually with purple tips, each surrounded by a wreath of pedicellariae. The background colour is variable and may be brownish or greenish-grey, tinged with yellow or red ...
Choriaster granulatus is a large sea star with a convex body and five short arms. The arms have rounded tips, making it appear "phallic", leading to one of its common names being "the doughboy starfish". Relatively large in comparison with other sea stars, its maximum radius is about 27 centimetres (11 in).
Coscinasterias calamaria is the largest starfish in southern Australia and New Zealand. Although called the eleven-armed sea star there can be any number of arms between seven and fourteen, but eleven is the most common number. These starfish are often found with arms of varying lengths.