New species and new records of freshwater Heterolepidoderma (Gastrotricha: Chaetonotidae) from Brazil with an identification key to the genus

被引:17
|
作者
Garraffoni, Andre R. S. [1 ]
Melchior, Marina P. [1 ]
机构
[1] Univ Estadual Campinas, Inst Biol, Dept Biol Anim, Lab Evolucao Organismos Meiofaunais, BR-13083970 Campinas, SP, Brazil
关键词
Heterolepidoderma mariae sp nov; Chaetonotida; systematics; biodiversity; meiofauna; Neotropical region; BALTIC SEA; MACRODASYIDA; KNOWLEDGE; DIVERSITY; CHECKLIST; MARINE;
D O I
10.11646/zootaxa.4057.4.5
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
A new species of freshwater Heterolepidoderma (Gastrotricha) was found in Brazil. Heterolepidoderma mariae sp. nov. is unique in possessing a three-lobed head, three types of dorsal keeled scales, a thin band of cilia on the head, connecting the two bands of ventral cilia, and an interciliary area with elliptical keeled scales with short spines. Heterolepidoderma famaillense Grosso & Drahg, 1991 is reported for the first time outside the type locality in Argentina, and we make some initial remarks on H. aff. majus Remane, 1927, a possible undescribed species. A dichotomous key for all freshwater species of Heterolepidoderma, with distributional data, is also provided.
引用
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页码:551 / 568
页数:18
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