{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,6]],"date-time":"2026-09-06T07:08:50Z","timestamp":1788678530806,"version":"build-2803163510"},"reference-count":0,"publisher":"Magnolia Press","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Zootaxa"],"abstract":"<jats:p>Cambarus (Cambarus) hatfieldi\u00a0is a stream-dwelling crayfish that appears to be endemic to the Tug Fork River system of West Virginia, Virginia, and Kentucky. Within this region, it\u00a0is prevalent in all major tributaries in the basin as well as the Tug Fork River\u2019s mainstem. The new species is morphologically most similar to\u00a0Cambarus sciotensis\u00a0and\u00a0Cambarus angularis.\u00a0It can be differentiated from\u00a0C. sciotensis\u00a0by its squamous, subtrinagular chelae compared to the elongate triangular chelae of\u00a0C. sciotensis; its shorter palm length\/palm depth ratio (1.9) compared to\u00a0C. sciotensis (2.3); and a smaller areola length\/total carapace length ratio (30.4% vs.36.5% respectively). Cambarus hatfieldi can be differentiated from C. angularis by its smaller areola length\/total carapace length ratio (30.4% vs. 36.7% respectively); a smaller rostrum width\/rostral length ratio (59.4% vs. 67.2% respectively); its rounded abdominal pleura as compared to the subtruncated pleura of C. angularis; the length of the central projection and mesial process of C. hatfieldi which both extend to the margin of the gonopod shaft or slightly beyond the margin compared to the central projection of C. sciotensis and C. angularis where both extend well beyond the margin of the gonopod shaft.\u00a0<\/jats:p>","DOI":"10.11646\/zootaxa.3750.3.3","type":"journal-article","created":{"date-parts":[[2013,12,19]],"date-time":"2013-12-19T00:42:52Z","timestamp":1387413772000},"source":"Crossref","is-referenced-by-count":8,"title":["Cambarus (C.) hatfieldi, a new species of crayfish (Decapoda:Cambaridae) from the Tug Fork River Basin of Kentucky, Virginia and West Virginia, USA"],"prefix":"10.11646","volume":"3750","author":[{"given":"Zachary J.","family":"Loughman","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Raquel A.","family":"FAgundo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Evan","family":"Lau","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stuart A.","family":"Welsh","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Roger f.","family":"Thoma","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"4913","published-online":{"date-parts":[[2013,12,19]]},"container-title":["Zootaxa"],"original-title":[],"link":[{"URL":"https:\/\/mapress.com\/zt\/article\/download\/zootaxa.3750.3.3\/30872","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/mapress.com\/zt\/article\/download\/zootaxa.3750.3.3\/30872","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,3,18]],"date-time":"2024-03-18T02:31:12Z","timestamp":1710729072000},"score":1,"resource":{"primary":{"URL":"https:\/\/mapress.com\/zt\/article\/view\/zootaxa.3750.3.3"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2013,12,19]]},"references-count":0,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2013,12,19]]}},"URL":"https:\/\/doi.org\/10.11646\/zootaxa.3750.3.3","relation":{},"ISSN":["1175-5334","1175-5326"],"issn-type":[{"value":"1175-5334","type":"electronic"},{"value":"1175-5326","type":"print"}],"subject":[],"published":{"date-parts":[[2013,12,19]]}}}