Tenguella (gastropod)

Tenguella is a genus of small, predatory sea snails, marine gastropod molluscs in the family Muricidae, the murex snails or rock snails.

Tenguella
A shell of the type species, Tenguella granulata.
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Caenogastropoda
Clade: Hypsogastropoda
Clade: Neogastropoda
Family: Muricidae
Subfamily: Ergalataxinae
Genus: Tenguella
Arakawa, 1965

Description

Tenguella species have thick shells bearing regular dark nodules. In T. granulata and T. marginalba, the furrows between the nodules are a contrasting lighter colour. Fully-grown adult shells range from roughly 12 millimetres (0.47 in) for T. chinoi to 25 millimetres (0.98 in) for T. granulata. The nodulated appearance is reminiscent of a compound fruit, this is reflected in the common names such as "mulberry shell" and "granulated drupe".

They live on rocky shores in the intertidal zone or in shallow water, where they prey on other molluscs by drilling through their shells.

Distribution

Species are found through the Indian Ocean and West Pacific (IWP), from eastern Africa to Australia, New Zealand, Pacific islands, and Japan. Most are tropical to sub-tropical, though T. marginalba is also found on temperate shores.

Taxonomy

Tenguella was defined by Arakawa in 1965. The type species is Purpura granulata Duclos 1832. In 1985, Fujioka synonymised it with Morula.[1]

In 2013, a gene-sequence analysis of 52 egalataxine species showed a clade containing M. granulata, that was related to Muricodrupa but more distant from the main Morula clade. The authors proposed resurrecting Arakawa's name Tenguella for this group.[1]

Species

As at 2019, the following species are included in Tenguella:[2]

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References
  1. Claremont, Martine; Houart, Roland; Williams, Suzanne T.; Reid, David G. (2013-02-01). "A molecular phylogenetic framework for the Ergalataxinae (Neogastropoda: Muricidae)". Journal of Molluscan Studies. 79 (1): 19–29. doi:10.1093/mollus/eys028. ISSN 0260-1230.
  2. MolluscaBase (2019). MolluscaBase. Tenguella Arakawa, 1965. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=716635 on 2020-01-18.
  3. Houart, Roland; Zuccon, Dario; Puillandre, Nicolas (2019-04-09). "Description of new genera and new species of Ergalataxinae (Gastropoda: Muricidae)". Cite journal requires |journal= (help)
  • Illustrations of "Purpura tuberculata" and "Purpura marginalba" in Kiener (1835) Coquilles Vivantes.
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