Reviewer name and names of any other individual's who aided in reviewer	Jose Lopez
Do you understand and agree to our policy of having open and named reviews, and having your review included with the published papers. (If no, please inform the editor that you cannot review this manuscript.)	Yes
Is the language of sufficient quality?	Yes
Please add additional comments on language quality to clarify if needed
Are all data available and do they match the descriptions in the paper?	Yes
Additional Comments
Are the data and metadata consistent with relevant minimum information or reporting standards? See GigaDB checklists for examples <a href="http://gigadb.org/site/guide" target="_blank">http://gigadb.org/site/guide</a>	Yes
Additional Comments
Is the data acquisition clear, complete and methodologically sound?	Yes
Additional Comments
Is there sufficient detail in the methods and data-processing steps to allow reproduction?	Yes
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Is there sufficient data validation and statistical analyses of data quality?	Yes
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Is the validation suitable for this type of data?	Yes
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Is there sufficient information for others to reuse this dataset or integrate it with other data?	Yes
Additional Comments
Any Additional Overall Comments to the Author	This is a review for manuscript “The first complete mitochondrial genome of Diadema antillarum (Diadematoida, Diadematidae) Majeske et al. DRR-202205-01 This is a very interesting topic. The methods and results are clearly explained. The original figures are very good and descriptive. The authors have competently analyzed the data and written a succinct manuscript. Marine biologists understand the legacy and impact of the Diadema epidemic from the 1980s. Therefore, it is important to help bring this species back to from the brink, if not dominance, in the Caribbean again. This could possibly happen with more systematic and molecular genomic characterizations such as this study. Was this project part of larger project to sequence the whole Diadema genome? If so, the authors could state this and not be penalized. Due to the large number of mtDNA molecules, assembling the mitochondrial genome is commonly done in whole genome projects. Having the mtDNA properly assembled is now a great asset for conservation and population genetics.
Recommendation	Accept