Cervidellus sonorensis n. sp. (Nematoda: Cephalobidae) from the desert of Anza-Borrego, CA, USA

被引：4
作者：
Ragsdale, Erik J. [1 ,2 ]
Mundo-Ocampo, Manuel [1 ,3 ]
Bumbarger, Daniel J. [1 ,2 ]
Baldwin, James G. [1 ]
机构：
[1] Univ Calif Riverside, Dept Nematol, Riverside, CA 92521 USA
[2] Max Planck Inst Dev Biol, Dept Evolutionary Biol, D-72076 Tubingen, Germany
[3] CIIDIR IPN, Unidad Sinaloa, Sinaloa, Mexico
来源：
NEMATOLOGY | 2011年 / 13卷
基金：
美国国家科学基金会;
关键词：
Cephalobomorpha; description; morphology; morphometrics; new species; phylogeny; scanning electron microscopy; taxonomy; RHABDITIDA CEPHALOBIDAE; RECURRENT EVOLUTION; ORDER RHABDITIDA; MOJAVE DESERT; GENUS; NOTHACROBELES; THORNE; CALIFORNIA; REDESCRIPTION; LATICOLLARIS;
D O I：
10.1163/138855410X533653
中图分类号：
Q95 [动物学];
学科分类号：
071002 ;
摘要：
Cervidellus sonorensis n. sp. is described from sand near the roots of creosote bush (Larrea tridentata) from Anza-Borrego Desert State Park, CA, USA. It is distinguished from others in the genus by the combination of a greatly distended, guitar-shaped corpus and the morphology of the lips and labial probolae. Distinctive features include a large pharyngeal metacorpus with a double swelling, a knob-like ledge at the base of each labial probola and lips with five filamentous tines, the most apical of which are those closest to the primary axil. One male individual was discovered in this parthenogenetic species. Characters used to diagnose C. sonorensis n. sp. are not definitive with respect to other genera and are probably plesiomorphic or convergent in light of DNA-based phylogenetic hypotheses. The position of C. sonorensis n. sp. and morphologically close congeners in relation to species of Nothacrobeles and Paracrobeles is discussed.
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收藏
页码：607 / 617
页数：11
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