Plesiophysa dolichomastix sp. n. (Gastropoda: Planorbidae)

Memórias do Instituto Oswaldo Cruz

W Lobato Paraense¹ 

[1] ,Fiocruz Instituto Oswaldo Cruz Departamento de MalacologiaRio de Janeiro RJ ,Brasil

关键词: Plesiophysa dolichomastix sp. n.;    Mollusca Planorbidae;    Central Brazil;   

DOI  :  10.1590/S0074-02762002000400009

来源: SciELO

【 摘 要 】

A new species of planorbid mollusc, Plesiophysa dolichomastix (Greek dolichos = long, mastix = flagellum), collected from Lagoa da Pedra, municipality of Santa Rosa, state of Goiás, Brazil (15°01'S, 47°13'W) is described. It is indistinguishable by the shell characters from the five congeneric species described so far: P. striata (Orbigny, 1841), P. granulata ("Shuttleworth" Sowerby, 1873), P. guadeloupensis ("Fischer" Mazé, 1883), P. ornata (Haas, 1938) and P. hubendicki Richards & Ferguson, 1962. It differs from the anatomically studied species in the following characters: about 50 ovotestis diverticula, against 12 in granulata, 100 in ornata, unstated in hubendicki; and length of flagella - about as long as the penial complex -, against about 1/3 to 1/6 in the other three.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License