Surface morphology of some Amphistomes (Trematoda) of Amazonian Fishes and the description of a new genus and species

Acta Amazonica

Vernon E. Thatcher¹ 

关键词: fish parasite;    trematode;    amphistome;    Amazonia;    Brazil;    parasita de peixes;    trematódeo;    anfistomídeo;    Amazônia;    Brasil;   

DOI  :  10.1590/1809-43921999294614

来源: SciELO

【 摘 要 】

The surface morphology of specimens from ten different genera of amphistomes (Trematoda, Cladorchiidae) from Amazonian fishes is described and illustrated. The importance of body shape as a generic character is considered. Morphological changes as a result of growth are shown and explained in relation to the species Dadaytrema oxycephala. Additionally, Doradamphistoma bacuensis gen. et sp. n. is described from the catfish, Megalodoras irwini Eigenmann, 1925.The new genus and species is elongate and flattened, with external pharyngeal pouches, an esophageal bulb, a spherical cirrus sac, a post-bifurcal genital pore and pre-equatorial testes.

【 授权许可】

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