Stomolophus undetermined Agassiz 1860

Stomolophus ssp. Distribution See Fig. 3, Mendoza-Becerril et al. (2025). Notes On the Atlantic coast of Mexico, several records have referred to S. meleagris Agassiz, 1860, but in this study, all occurrences from the Mexican Caribbean are reported simply as Stomolophus sp. This decision follows the lack of voucher specimens. Molecular data confirm S. meleagris in the Gulf of Mexico on both the Mexican side (Tabasco) and the U. S. coast, including Florida and Dauphin Island (Bayha and Dawson 2010, Gómez Daglio and Dawson 2017). Other genetic lineages have been reported in nearby areas. One example is Stomolophus sp. 5, recorded from the Caribbean coast of Nicaragua by Gómez Daglio and Dawson (2017), suggesting that more than one species of the genus may occur in the wider region. Furthermore, specimens from northern South America have been identified as S. fritillaria Haeckel, 1880 (Kramp 1955); taking this into account and due to the lack of molecular data for the Mexican Caribbean, all records are conservatively listed as Stomolophus sp. until further studies clarify species boundaries (Fig. 2 f).