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| Pilati, Alberto; Menu-Marque, Silvina. |
| Originally described by Löffler in 1962 as a variety of Mesocyclops longisetus, M. araucanus was found to have autapomorphies of its own to deserve specific rank. For a long time the identification of these two species were mixed up. Here, M. araucanus female is redescribed and the male described for the first time. A comparison is made with M. longisetus, whose male is also described for the first time. Detailed comparison between these two species shows that the following traits on specimens of both sexes can be used to separate the species: length/width ratio of caudal rami, ratio of terminal caudal setae, and length/width ratio of last segment of endopod of leg 4. Additional diagnostic characters for each sex are given. The geographic distributions of... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Copepoda; Cyclopoida; Mesocyclops; South America; Morphology. |
| Ano: 2002 |
URL: http://www.repository.naturalis.nl/record/505083 |
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| Fiers, Frank; Reid, Janet W.; Iliffe, Thomas M.; Suárez-Morales, Eduardo. |
| Four previously unknown hypogean species of cyclopoid copepods were collected in cenotes and wells of the Yucatán Peninsula, Mexico. Diacyclops chakan sp. n. and D. puuc sp. n. differ from their congeners in combining 3-segmented swimming legs, 11-segmented antennules, and legs 1-4 endopodite segment 2 all with 2 setae. Species of Diacyclops rarely occur in tropical regions, and the Diacyclops described here are only the second and third species recorded from Mexico. The benthic D. puuc was found in the large underground reservoir of a cenote. Diacyclops chakan was encountered in such large open subterranean water basins, but more frequently and abundantly in wells. The two Mesocyclops species, M. chaci sp. n. and M. yutsil sp. n., most closely resemble... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Diacyclops; Mesocyclops; Copepoda; Cyclopoida; Biogeography; Evolution; Hypogean; Karst; Species-flock; Taxonomy; Mexico. |
| Ano: 1996 |
URL: http://www.repository.naturalis.nl/record/504240 |
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| Reid, Janet W.. |
| Recent collections in the south central U.S.A. have included three neotropical and one probably introduced species that are presently assigned to the cyclopoid copepod genus Mesocyclops. Mesocyclops longisetus var. curvatus Dussart, 1987, is reported from Louisiana, U.S.A., and Panama; published records of Mesocyclops longisetus (Thiébaud, 1914) sensu lato in the southern U.S.A. are reviewed. Mesocyclops reidae Petkovski, 1986, is reported from Mississippi, U.S.A., and Honduras. Mesocyclops ruttneri Kiefer, 1981, is redescribed from type specimens collected in Austria, and newly reported from Louisiana, Mississippi, China, Thailand, and Viet Nam. This species is considered to have been introduced from Asia into Austria and the U.S.A. Mesocyclops bernardi... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Taxonomy; Copepoda; Cyclopoida; Mesocyclops; New records; U.S.A. |
| Ano: 1993 |
URL: http://www.repository.naturalis.nl/record/504362 |
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