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Original description: "Shell fusiform, elongated, with elevated spire; shoulder and spire whorls rounded; shell sculptured with numerous microscopic spiral threads, giving shell shiny, silky texture; 3 or 4 spiral threads near suture larger than others; body whorl without axial sculpture; columellar callus raised, with edge detached from shell; columella with 1 large, prominent plication ...
Bifid – Having two arms or prongs. [1] Bifurcated – Having two branches. [1] Bilateral – With two sides. [1] Bilobed – With two lobes. [1] Blood sinus; Bulbous – Swollen. [1] Calcareous – Composed of carbonate of lime. [1] Callosity – A hardened and raised bunch, as the callus on the columella of some shells. [1] Callus – A ...
Bolma tayloriana, common name Taylor's star shell, is a species of sea snail, ... The arcuate columella is, white calloused. [6] Distribution
A bifid rib is a congenital abnormality of the rib cage and associated muscles and nerves which occurs in about 1.2% of humans. Bifid ribs occur in up to 8.4% of Samoans. [1] The sternal end of the rib is cleaved into two. It is usually unilateral. [2] Bifid ribs are usually asymptomatic, and are often discovered incidentally by chest X-ray.
columella In flowering plants, the central axis of the cone or fruit, e.g. in Callitris. column 1. A structure extending above the ovary and incorporating the style and stamen s also known as the gynostegium, e.g. in orchids and milkweeds. 2.
The base of the shell is short, moderately rounded, and with a weak fasciole at the insertion of the columella. The outer lip of the type specimen was badly fractured. The columella is conic, and moderately strong. It is provided with a strong lamellar fold at its insertion, a moderately strong median one and a weaker anterior to it; the last ...
A Taylor column is a fluid dynamics phenomenon that occurs as a result of the Coriolis effect. It was named after Geoffrey Ingram Taylor . Rotating fluids that are perturbed by a solid body tend to form columns parallel to the axis of rotation called Taylor columns.
In some species, the inner peridium is borne on a stalk or pedicel. The columella is a column-like clump of sterile tissue found inside the inner peridium. The network of fertile tissue inside the inner peridium, the capillitium, arises from the columella. This is where basidia and basidiospores are produced. The mouth in most species of "earth ...