Redescription of Hanleya brachyplax (Polyplacophora, Hanleyidae) from the south-southeastern Brazilian coast

Papéis Avulsos de Zoologia (São Paulo)

Jaime A. Jardim¹  Luiz Ricardo L. Simone¹ 

[1] ,Universidade de São Paulo Museu de Zoologia São Paulo SP ,Brasil

关键词: Hanleya brachyplax;    Anatomy;    Morphology;    South and Southeast Brazilian Coast;    Hanleya brachyplax;    Anatomia;    Morfologia;    Costa brasileira Sul e Sudeste;   

DOI  :  10.1590/S0031-10492010004000001

来源: SciELO

【 摘 要 】

Hanleya brachyplax Simone & Jardim in Rios, 2009 is described in detail. The species occurs off the southeastern and south coast of Brazil (São Paulo and Santa Catarina states) in depths from 250 to 408 m. It differs from its congeners in having uniform white valves; wide intermediate valves; the tail valve with straight profile in the antemucronal area, and a concave postmucronal surface; and a cream-colored girdle, covered by non-articulated spines. An anatomical investigation was also performed, showing the main muscle groups; the presence of gills in the posterior third of the pallial groove; auricle with six orifices; a very flat kidney, restricted to the posterior half of the animal; and a simple esophageal region. The odontophore has a single pair of long cartilages. The buccal musculature is also described.

【 授权许可】

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