Strombus alatus

Distribution

This conch occurs in the Western Atlantic Ocean from North Carolina to Florida and the Gulf of Mexico, Louisiana, Texas, and the east coast of Mexico.

Description

The shell can be as large as 112 mm.

This species is closely similar to Strombus pugilis, the West Indian fighting conch, which has a more southerly range. S. alatus shells have less prominent subsutural spines and slightly more projected outer lips. Some scientists have treated the two as distinct species; others as subspecies. In an extensive study of the Stromboidea in 2005, Simone provisionally treated these as distinct species, but observed, "no spectacular morphological difference was found [and] all related differences, even those of the genital system, can be regarded as extreme of variation of a single, wide distributed, variable species."

Phylogeny

A cladogram based on sequences of nuclear histone H3 gene and mitochondrial cytochrome-c oxidase I (COI) gene showing phylogenetic relationships of (32 analyzed) species in the genus Strombus and Lambis, including S. alatus, was proposed by Latiolais et al. (2006):

Habitat

The minimum recorded depth for this species is the surface; the maximum recorded depth is 183 m.

References

References

1. "Malacolog ver. 4.1.1". The Academy of Natural Sciences.
2. Perry, H.. (2004). "''Strombus alatus'' Gmelin, 1791 Florida Fighting Conch". A Picture Guide to Shelf Invertebrates from the Northern Gulf of Mexico.
3. 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
4. [http://www.revistasusp.sibi.usp.br/pdf/azmz/v37n2/a01v37n2.pdf Simone (2005): Comparative Morphological study of representatives of the three families of Stromboidea and the Xenophoroidea (Mollusca, Caenogastropoda), with an assessment of their phylogeny] {{Webarchive. link. (5 March 2012 , p. 142.)
5. [http://www.revistasusp.sibi.usp.br/pdf/azmz/v37n2/a01v37n2.pdf Simone (2005): Comparative Morphological study of representatives of the three families of Stromboidea and the Xenophoroidea (Mollusca, Caenogastropoda), with an assessment of their phylogeny] {{Webarchive. link. (5 March 2012 , p. 169.)
6. Latiolais J. M., Taylor M. S., Roy K. & Hellberg M. E. (2006). "A molecular phylogenetic analysis of strombid gastropod morphological diversity". ''[[Molecular Phylogenetics and Evolution]]'' '''41''': 436–444. {{doi. 10.1016/j.ympev.2006.05.027. [http://biology.ucsd.edu/labs/roy/PDFs/Latiolais%20et%20al.%202006%20Mol.%20Phyl.%20&%20Evol.pdf PDF].