Two new species of Metachromadora ( Nematoda: Desmodoridae) from Guanabara Bay, Rio de Janeiro, Brazil, and a revised dichotomous key to the genus

被引:6
作者
Maria, Tatiana F. [1 ]
Smol, Nic [2 ]
Esteves, Andre M. [3 ]
机构
[1] Univ Fed Estado Rio de Janeiro UNIRIO, Dept Ecol & Recursos Marinhos, BR-22290240 Rio De Janeiro, Brazil
[2] Univ Ghent, Nematol Sect, Dept Biol, B-9000 Ghent, Belgium
[3] Univ Fed Pernambuco, Dept Zool, BR-50670901 Recife, PE, Brazil
关键词
marine nematodes; Desmodorida; description; identification key;
D O I
10.1017/S0025315413001161
中图分类号
Q17 [水生生物学];
学科分类号
071004 ;
摘要
Two new species of Metachromadora are described from Bananal and Bica beaches in Guanabara Bay on the coast of Rio de Janeiro, Brazil. Both new species belong to the subgenus Bradylaimus, which is characterized by the absence of lateral alae. Metachromadora prepapillata sp. nov. is characterized by the presence of 8-9 precloacal papilliform supplements, while Metachromadora verae sp. nov. is characterized by the sexual dimorphism of the amphidial fovea, presence of 8-9 precloacal tubuliform supplements, and three postcloacal papillae. An updated dichotomous key to species of Metachromadora is proposed. Metachromadora asupplementa is reinstated as a valid species.
引用
收藏
页码:105 / 114
页数:10
相关论文
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