Cryptic diversity in the genus Croisettea (Kallymeniaceae, Rhodophyta) from Hawaiian mesophotic reefs

This dataset contains the digitized treatments in Plazi based on the original journal article Cabrera, Feresa P., Huisman, John M., Spalding, Heather L., Kosaki, Randall K., Smith, Celia M., Sherwood, Alison R. (2022): Cryptic diversity in the genus Croisettea (Kallymeniaceae, Rhodophyta) from Hawaiian mesophotic reefs. Phycologia 61 (6): 572-583, DOI: 10.1080/00318884.2022.2096823, URL: doi.org/10.1080/00318884.2022.2096823 ABSTRACT ARTICLE HISTORY Recent investigations into the species diversity of red blades in Hawai‘i have yielded several specimens of Kallymeniaceae from Hawaiian Mesophotic Coral Ecosystems.

Our combined morphological and mitochondrial COI-5P and plastid rbc L phylogenetic analyses indicated widespread cryptic diversity among those specimens commonly identified as Kallymenia sensu lato based on morphology. These analyses resolved four unique genetic lineages of Hawaiian taxa in the genus Croisettea, which are all restricted to the lower mesophotic depths (c. 60–150 m). Croisettea currently includes three described species distributed in the North Atlantic, Indian and South Pacific Oceans, and the Mediterranean Sea.