Note
Chaenopsis roseola is described from the middle shelf region of the northeastern Gulf of Mexico. It is distinguished from its closest known congener in the western Atlantic, C. stephensi, on the basis of pigmentation pattern, morphometrics, and palatine tooth pattern. The relationship of the forms is discussed, but the status of a specimen from off Yucatan, previously assigned to C. stephensi, is unresolved. The habitat of C. roseola, as observed from a research submersible, consists of "windrows" of shell rubble.