Check List 16(3): 513-519, doi: 10.15560/16.3.513
Range extension of Mesophyllum erubescens (Foslie) Me. Lemoine (Hapalidiales, Rhodophyta): first report from mesophotic rhodolith beds in the northwestern Gulf of Mexico offshore Louisiana and Texas, including the Flower Garden Banks National Marine Sanctuary
expand article infoJoseph L. Richards, Ronald P. Kittle III, Jaida R. Abshire, Dijel Fuselier, William E. Schmidt, Carlos F. D. Gurgel§, Suzanne Fredericq
‡ University of Louisiana at Lafayette, Lafayette, United States of America§ Universidade Federal de Santa Catarina, Florianopolis, Brazil
Open Access

DNA sequence analysis of plastid-encoded psbA and UPA, mitochondrion-encoded COI, and nuclear-encoded LSU rDNA of rhodolith-forming crustose coralline algal specimens from the northwestern Gulf of Mexico reveals that Mesophyllum erubescens (Foslie) Me. Lemoine is present in mesophotic rhodolith beds offshore Louisiana and Texas at 39–57 m depth. Morpho-anatomical characters viewed with SEM support the identification of these specimens. Mesophyllum erubescens is reported for the first time offshore Louisiana at Ewing Bank, the Louisiana–Texas border at Bright Bank, and Texas in the Flower Garden Banks National Marine Sanctuary.

CCA, COI, coralline algae, DNA, LSU rDNA, psbA, UPA