{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,14]],"date-time":"2025-05-14T03:45:13Z","timestamp":1747194313925,"version":"3.40.5"},"reference-count":96,"publisher":"Magnolia Press","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Zootaxa"],"abstract":"In this contribution, we describe two new species of burrowing crayfish species complex Parastacus brasiliensis from forestry areas in the central region of the state of Rio Grande do Sul, southern Brazil. We used an integrative taxonomy approach with morphology and the mitochondrial DNA 16S rRNA gene and also evaluated their conservation status according to the IUCN Red List Criteria. Parastacus guapo sp. nov. was collected near the municipality of Pantano Grande and it differs from all other congeneric species in having an epistome anterolateral section with a large conical projection ending in a big sharp spine on both sides. It also differs from P. brasiliensis sensu stricto in the shape of the rostral surface, sub-orbital angle, postorbital carina straight, sub-orbital angle > 90\u00b0, postorbital carinae prominent in anterior and middle portions, carpal spine present, the internal surface of chelipeds palm with sparse tubercules, areola narrow and pleon short. Parastacus gomesae sp. nov. was collected in the municipality of S\u00e3o Jer\u00f4nimo, it differs from all analysed species for rostral spine absent, epistome anteromedian lobe heptagonal and mandible incisive process with seven teeth (the second tooth from the anterior margin is the largest). It is also distinguished of P. brasiliensis sensu stricto in the sub-orbital angle > 90\u00b0, postorbital carinae prominent in anterior and middle portions, 3\u20134 rows of verrucose tubercles irregularly distributed on the palm dorsal surface of chelipeds, areola narrow and pleon short. Phylogenetic relationships confirmed the distinct position of these new species to the already described species. The extent of occurrence (EOO) \/ area of occurrence (AOO) of P. guapo sp. nov and P. gomesae sp. nov. were estimated at 937 km\u00b2 \/ 1,87 km\u00b2, and 2.107 km\u00b2 \/ 23,9 km\u00b2 respectively. The main threats identified were continued decline in the quality of habitats, resulting from deforestation and forestry areas. However, as we know only one point of occurrence for each new species, we suggest that both be categorized as Data Deficient.<\/jats:p>","DOI":"10.11646\/zootaxa.5168.3.1","type":"journal-article","created":{"date-parts":[[2022,7,22]],"date-time":"2022-07-22T00:30:23Z","timestamp":1658449823000},"page":"251-284","source":"Crossref","is-referenced-by-count":2,"title":["The hole is deeper: description of two new species within the Parastacus brasiliensis (von Martens, 1869) species complex with an integrative taxonomy approach"],"prefix":"10.11646","volume":"5168","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4590-3049","authenticated-orcid":false,"given":"AUGUSTO FREDERICO","family":"HUBER","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7587-3936","authenticated-orcid":false,"given":"PAULA BEATRIZ","family":"ARAUJO","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8623-1576","authenticated-orcid":false,"given":"FELIPE BEZERRA","family":"RIBEIRO","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"4913","published-online":{"date-parts":[[2022,7,22]]},"reference":[{"key":"129630","doi-asserted-by":"crossref","unstructured":"

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