Retilaskeya bicolor

{{Short description|Species of gastropod}}

{{Speciesbox

| image =

| image_caption =

| taxon = Retilaskeya bicolor

| authority = (C. B. Adams, 1845)

| synonyms =

}}

Retilaskeya bicolor is a species of sea snail, a gastropod in the family Newtoniellidae, which is known from the Caribbean Sea and the Gulf of Mexico. It was described by C. B. Adams, in 1845.[http://www.marinespecies.org/aphia.php?p=taxdetails&id=419889 Retilaskeya bicolor] at World Register of Marine Species.