BURSA SHELLS TOP QUALITY 

Bursa is a genus of large sea snails, marine gastropod mollusks in the family Bursidae, the frog snails or frog shells.

Bursas have an ovate or oblong compressed shell, and shows two rows of continuous varices, one on each side. The aperture is oval. The columella is arcuated, and ridged or crenulated. The siphonal canal is short and recurved. The outer lip is crenated.

Crenated having the margin or surface cut into rounded scallops

The species of Bursa are mostly tropical, the majority being from the Eastern seas. They are found, when variegated and with nodose armature, in rocky places and on coral reefs. The winged species, with a smoother surface, are from deep water. They move about with considerable animation, and crawl rapidly.

variegated exhibiting different colors, especially as irregular patches or streaks

nodose a body with one or more knotted parts

armature a protective covering

These shells are distinguished by a gutterlide canal or a slit-sided tube, that cuts through the edge of the aperture at its rear end. Some frog shells are moderate in size while a few are large. They assume many shapes, some coarsely ornamented with thick ribs, knobs and warty lumps; which gives them the name frog shells. Most frog shells live on sand and coral rubble; commonly found across the Indo-Pacific region.

Aperture is a small and often narrow opening

(REF: Adams, H. & Adams, A. (1853-1858). The genera of Recent Mollusca; arranged according to their organization. London, van Voorst ) (REF: )

Scientific classification

Domain: Eukaryota

Kingdom: Animalia

Phylum: Mollusca

Class: Gastropoda

Subclass: Caenogastropoda

Order: Littorinimorpha

Superfamily: Tonnoidea

Family: Bursidae

Genus: Bursa

Röding, 1798 (REF:WoRMS (2010). Bursa Röding, 1798. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accessed through: World Register of Marine Species)

Bursa Rana Shell

M1-9

A single Bursa Rana shell, measuring 2 to 3 inches. ...... .26

Bursa Bursa Shell

They belong to the Frog shell family. Found across the Indo-Pacific region.

BB3-10

One Bursa Bursa shell, measuring 1 to 1 3/4 inches. ..... .11

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