{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,30]],"date-time":"2025-05-30T18:06:30Z","timestamp":1748628390289,"version":"3.37.3"},"reference-count":38,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2015,6,7]],"date-time":"2015-06-07T00:00:00Z","timestamp":1433635200000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Zool. Stud."],"published-print":{"date-parts":[[2015,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>The distinction of genera in Cranaidae (as in many other Gonyleptoidea) is traditionally made on the basis of a combination of armature of scutal areas, tarsomere counts, and some secondary sexual structures (which may vary among males). This historically led to the creation of non-natural groups of species as meaningless genera. Here some nominal genera of Cranaidae are addressed, and this paucity of diagnostic characters is alleviated with more detailed diagnoses and descriptions.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The poorly known genus<jats:italic>Ventrifurca<\/jats:italic>Roewer, 1913, hitherto monotypic, is revisited. The genera<jats:italic>Microcranaus<\/jats:italic>Roewer, 1913 (with three species),<jats:italic>Cayabeus<\/jats:italic>Roewer, 1932 (monotypic), and<jats:italic>Angistrius<\/jats:italic>(monotypic) are here proposed as junior subjective synonyms of<jats:italic>Ventrifurca<\/jats:italic>. Both type species of<jats:italic>Microcranaus<\/jats:italic>and<jats:italic>Cayabeus<\/jats:italic>are considered junior subjective synonyms of<jats:italic>Ventrifurca albipustulata<\/jats:italic>; thus,<jats:italic>Cayabeus perlatus<\/jats:italic>Roewer, 1932 and<jats:italic>Microcranaus pustulatus<\/jats:italic>Roewer, 1913\u2009=\u2009<jats:italic>Ventrifurca albipustulata<\/jats:italic>Roewer, 1913.<jats:italic>Ventrifurca abnormis<\/jats:italic>comb. nov. is proposed for<jats:italic>Angistrius abnormis<\/jats:italic>Roewer, 1932.<jats:italic>Rhopalocranaus dybasi<\/jats:italic>Goodnight &amp; Goodnight, 1947, currently<jats:italic>Neocranaus dybasi<\/jats:italic>, is transferred to<jats:italic>Ventrifurca<\/jats:italic>, and the new combination<jats:italic>Ventrifurca dybasi<\/jats:italic>comb. nov. is herein proposed for it.<jats:italic>Ventrifurca albipustulata<\/jats:italic>is redescribed, and for the first time, the male genitalia is described and illustrated, and SEM pictures are offered. The new species<jats:italic>Ventrifurca caffeinica<\/jats:italic>sp. nov. is described from Quind\u00edo department, Colombia. A new diagnosis to<jats:italic>Ventrifurca<\/jats:italic>is proposed. The relationships of<jats:italic>Ventrifurca<\/jats:italic>are discussed. The remaining two species of<jats:italic>Microcranaus<\/jats:italic>are transferred to the family Manaosbiidae: (1)<jats:italic>Microcranaus columbianus<\/jats:italic>newly combined as<jats:italic>Rhopalocranaus columbianus<\/jats:italic>(Roewer, 1963) and (2)<jats:italic>Microcranaus gracilis<\/jats:italic>newly combined as<jats:italic>Camelianus gracilis<\/jats:italic>(Roewer, 1913). New diagnoses are given for both species.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>A non-monotypic genus of Andean Cranaidae is defined, associated with a well-defined geographic region, and unloaded of extraneous species which belong to another family. Recognition of variation in heteromorphic males reveals past errors of assignment when only limited samples were available for study.<\/jats:p><\/jats:sec>","DOI":"10.1186\/s40555-015-0117-8","type":"journal-article","created":{"date-parts":[[2015,6,6]],"date-time":"2015-06-06T07:33:34Z","timestamp":1433576014000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["The poorly known genus Ventrifurca Roewer, 1913 revisited (Opiliones: Cranaidae)"],"prefix":"10.1186","volume":"54","author":[{"given":"Osvaldo","family":"Villarreal M","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Adriano B","family":"Kury","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ricardo","family":"Pinto-da-Rocha","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2015,6,7]]},"reference":[{"issue":"1","key":"117_CR1","first-page":"1","volume":"32","author":"CJ Goodnight","year":"1947","unstructured":"Goodnight CJ, Goodnight ML (1947) Phalangida from tropical America. 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