Benthonella tenella

Benthonella tenella
	hell of Benthonella tenella (specimen at MNHN, Paris)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Littorinimorpha
Family:	Rissoidae
Genus:	Benthonella
Species:	B. tenella
Binomial name
	Benthonella tenella; (Jeffreys, 1869)
Synonyms
	Assiminopsis abyssorum Locard, 1897; Benthonella fischeri Dall, 1889; Benthonella gaza Dall, 1889; Benthonella jeffreysi (Dautzenberg, 1889); Benthonella kullenbergi Odhner, 1960; Cithna jeffreysi (Dautzenberg, 1889); Cithna tenella (Jeffreys, 1869); Cithna tenella var. costulata Jeffreys, 1883; Lacuna abyssorum Locard, 1896; Lacuna tenella Jeffreys, 1869; Putilla abyssicola F. Nordsieck, 1972; Rissoa amblia var. inornata Dautzenberg, 1927;

Benthonella tenella is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.^[1]

Distribution

This species occurs in the Atlantic Ocean off Southeast Brazil.

Description

The maximum recorded shell length is 9 mm.^[2]

(Described as Benthonella gaza) The shell is elongated, glistening opaque white, and extremely thin, featuring two and a half larval whorls and five later whorls. The protoconch is trochiform, brown, and polished, with a single carina above the periphery. The other whorls are full and rounded, with the earlier ones marked with a few faint flexuous transverse waves, and the rest displaying only lines of growth. The whorls are full and rounded, and the suture is distinct. The base is full and rounded, with a small umbilicus, in front of which the thin inner lip is reflected. The aperture is rounded, and the lip is slightly reflected but not thickened.^[3]

Habitat

Minimum recorded depth is 10 m.^[2] Maximum recorded depth is 5500 m.^[2]

References

^ ^a ^b Benthonella tenella (Jeffreys, 1869). Gofas, S. (2009). Benthonella tenella (Jeffreys, 1869). In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2009) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=141261 on 9 August 2010 .
^ ^a ^b ^c Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". PLoS ONE 5(1): e8776. doi:10.1371/journal.pone.0008776.
^ Dall, W.H. (1888). "Reports on the results of dredging, under the supervision of Alexander Agassiz, in the Gulf of Mexico (1877-78) and in the Caribbean Sea (1879-80), by the U.S. Coast Survey Steamer "Blake", Lieut.-Commander C.D. Sigsbee, U.S.N., and Commander J.R. Bartlett, U.S.N., commanding. XXIX. Report on the Mollusca. Part 2, Gastropoda and Scaphopoda". Bulletin of the Museum of Comparative Zoölogy at Harvard College. 18: 282. Retrieved 3 June 2025. This article incorporates text from this source, which is in the public domain.

Lozouet, P., 2014 Occurrence of Benthonella Dall 1889 in the Cenozoic (Paleogene) of France: a present-day abyssal and bathyal mollusc (Gastropoda: Caenogastropoda: Rissoidae). Archiv für Molluskenkunde, 143(1): 21-32, 8 figures.

External links

Serge GOFAS, Ángel A. LUQUE, Joan Daniel OLIVER, José TEMPLADO & Alberto SERRA (2021) - The Mollusca of Galicia Bank (NE Atlantic Ocean); European Journal of Taxonomy 785: 1–114

Media related to Benthonella tenella at Wikimedia Commons

[WoRMS-1] Benthonella tenella (Jeffreys, 1869). Gofas, S. (2009). Benthonella tenella (Jeffreys, 1869). In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2009) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=141261 on 9 August 2010 .

[Welch_2010-2] Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". PLoS ONE 5(1): e8776. doi:10.1371/journal.pone.0008776.

[3] Dall, W.H. (1888). "Reports on the results of dredging, under the supervision of Alexander Agassiz, in the Gulf of Mexico (1877-78) and in the Caribbean Sea (1879-80), by the U.S. Coast Survey Steamer "Blake", Lieut.-Commander C.D. Sigsbee, U.S.N., and Commander J.R. Bartlett, U.S.N., commanding. XXIX. Report on the Mollusca. Part 2, Gastropoda and Scaphopoda". Bulletin of the Museum of Comparative Zoölogy at Harvard College. 18: 282. Retrieved 3 June 2025. This article incorporates text from this source, which is in the public domain.

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