Lophocochlias parvissimus

Lophocochlias parvissimus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Littorinimorpha
Superfamily:	Truncatelloidea
Family:	Tornidae
Genus:	Lophocochlias
Species:	L. parvissimus
Binomial name
	Lophocochlias parvissimus; (Pilsbry, 1921)
Synonyms
	Haplocochlias (Lophocochlias) minutissimus Pilsbry, 1921 (original combination); Liotia parvissima Hedley, 1899 (original combination); Lophocochlias minutissimus (Pilsbry, 1921); Parviturbo parvissimus (Hedley, 1899); Parviturboides parvissimus (Hedley, 1899);

Lophocochlias parvissimus is a species of sea snail, a marine gastropod mollusk in the family Tornidae.^[1]

Description

The height of the shell attains 1 mm, its diameter 0.9 mm. The very small, white shell is umbilicate, turbinate, not nacreous, with a conic brownish spire. The first whorl appears to be smooth. On the second whorl fine radial folds or puckering appears below the suture, becoming coarser on the following whorl. The body whorl has six strong, smooth spiral keels, narrower than the intervals, which are flat and crossed by numerous retractively axial threads, which are much narrower than their intervals. Within the umbilicus, two rather small spiral cords are visible. The aperture is quite oblique and subcircular. The outer lip is strengthened by a rounded external rib or varix a short distance behind the edge.^[2]

Distribution

This marine species occurs in the Pacific Ocean off Hawaii and Tuvalu.

References

^ MolluscaBase eds. (2021). MolluscaBase. Lophocochlias parvissimus (Hedley, 1899). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=765226 on 2021-05-15
^ Pilsbry H.A. 1921. Marine mollusks of Hawaii, XIV-XV. Proceedings of the Academy of Natural Sciences, 72: 360–383 (described as Haplocochlias (Lophocochlias) minutissimus )

Kay, E.A. (1979) Hawaiian marine shells. Reef and shore fauna of Hawaii. Section 4: Mollusca. Bernice P. Bishop Museum Special Publications, 64, xviii + 1–653
Tröndlé, J. (1986). Premieres donnees en ecologie et faunistique sur la microfauna malacologique de Tahiti (Société - Polynésie française). Haliotis. 15, 61-72.

External links

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[WoRMS-1] MolluscaBase eds. (2021). MolluscaBase. Lophocochlias parvissimus (Hedley, 1899). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=765226 on 2021-05-15

[2] Pilsbry H.A. 1921. Marine mollusks of Hawaii, XIV-XV. Proceedings of the Academy of Natural Sciences, 72: 360–383 (described as Haplocochlias (Lophocochlias) minutissimus )

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