Antistreptus

Antistreptus
	Shell of Antistreptus magellanicus
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Family:	Prosiphonidae
Genus:	Antistreptus; Dall, 1902

Antistreptus is a genus of sea snail, a marine gastropod mollusk in the family Prosiphonidae, the true whelks.^[1]

Description

(Original description) The shell is small, exhibiting the general form of Anachis, and is sinistral, but possesses a dextral nucleus. The operculum is as in Trophon. ^[2]

Species

Antistreptus contrarius (Thiele, 1912)
Antistreptus magellanicus Dall, 1902
Antistreptus perversus (A. W. B. Powell, 1951)
Antistreptus reversus (A. W. B. Powell, 1958)

Synonyms

Antistreptus rolani Castellanos, 1986: synonym of Antistreptus magellanicus Dall, 1902

References

^ "Antistreptus". WoRMS. World Register of Marine Species. Retrieved 19 April 2025.
^ Dall, W.H. (1902). "Illustrations and descriptions of new, unfigured, or imperfectly known shells, chiefly American in the U. S. National Museum". Proceedings of the United States National Museum. 24 (1264): 532. This article incorporates text from this source, which is in the public domain.

External links

Pastorino G. & Griffin M. (2019). "Gastropods of the genus Antistreptus as examples of persistent molluscan lineages in the Neogene of the southwestern Atlantic". Journal of Paleontology. 93 (5): 916–924.

[WoRMS-1] "Antistreptus". WoRMS. World Register of Marine Species. Retrieved 19 April 2025.

[2] Dall, W.H. (1902). "Illustrations and descriptions of new, unfigured, or imperfectly known shells, chiefly American in the U. S. National Museum". Proceedings of the United States National Museum. 24 (1264): 532. This article incorporates text from this source, which is in the public domain.

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