Kingdom Animalia Class Gastropoda Family Xenophoridae Scientific name Stellaria testigera | Phylum Mollusca Superfamily Xenophoroidea Genus Stellaria Rank Species | |
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Stellaria testigera, common name Finger Carrier Shell, is a species of large sea snail, a marine gastropod mollusk in the family Xenophoridae, the carrier shells.
Contents
Subspecies
Distribution
Stellaria testigera profunda is present in the Gulf of Aden and in North East Africa, while Stellaria testigera digitata can be found in Senegal and Western Africa.
Description
Shells of Stellaria testigera profunda can reach a size of 45–80 millimetres (1.8–3.1 in), while in Stellaria testigera digitata they can reach 50–75 millimetres (2.0–3.0 in). These shells are characterized by the expanded peripherical flange, the presence of digitations and the smooth dorsal surface.
Fossil record
Fossils of Stellaria testigera are found in marine strata from the Miocene to Pliocene (age range: from 20.43 to 3.6 million years ago.). Fossils are known from Italy, Denmark and Slovakia. These mollusks lived in the Mediterranean and spread to the Atlantic Africa and the Gulf of Aden.