来自墨西哥东南部淡水鱼双斑异齿鳉（硬骨鱼纲：花鳉科）的一种新艾氏吸虫（吸虫纲）物种。

A new allocreadiid (Trematoda) species from freshwater fish Heterandria bimaculata (Teleostei: Poeciliidae) in Southeastern Mexico.

作者信息

Salgado-Maldonado Guillermo, Caspeta-Mandujano Juan Manuel, Vázquez Gabriela

机构信息

Instituto de Biología, Universidad Nacional Autónoma de México, A.P. 70-153, 04510 México D.F., Mexico.

出版信息

J Parasitol. 2012 Apr;98(2):404-7. doi: 10.1645/GE-2907.1. Epub 2011 Nov 7.

DOI:10.1645/GE-2907.1

PMID:22059430

Abstract

Paracreptotrema heterandriae n. sp. (Trematoda: Allocreadiidae) is described from the intestine of the freshwater fish Heterandria bimaculata (Teleostei: Poeciliidae) from the upper basin of Río La Antigua, in Veracruz, Mexico. The new species is distinguished from the 3 others in the Paracreptotrema Choudhury, Pérez-Ponce de León, Brooks, and Daverdin, 2006 , mainly by having a feeble membranous cirrus sac containing an uncoiled seminal vesicle, instead of a well-developed muscular cirrus sac that encloses coiled seminal vesicle, pars prostatica, and ejaculatory duct as in the previously 3 nominal species. Moreover, eggs of the new species are larger than all others ([measurements in micrometers] eggs of P. heterandriae n. sp. 72.5 [70-75] × 40 [35-41]; P. blancoi 55.4 [52.5-62.5] × 38.5 [32.5-42.5]; P. mendezi 46 × 37; P. profundulusi 57 [52-60] × 27.8 [25-30]).

摘要

异雄小带吸虫新种（吸虫纲：异肉科）是从墨西哥韦拉克鲁斯州里奥安提瓜上游流域的淡水鱼双斑异小鳉（硬骨鱼纲：花鳉科）的肠道中发现并描述的。该新物种与2006年乔杜里、佩雷斯 - 庞塞·德莱昂、布鲁克斯和达韦尔丹所描述的小带吸虫属中的其他3个物种主要的区别在于，它有一个含有未盘绕精囊的薄弱膜质阴茎囊，而不像之前3个命名物种那样有一个包裹着盘绕精囊、前列腺部和射精管的发达肌肉质阴茎囊。此外，新物种的卵比其他所有物种的卵都大（[以微米计]异雄小带吸虫新种的卵72.5 [70 - 75]×40 [35 - 41]；布兰科小带吸虫55.4 [52.5 - 62.5]×38.5 [32.5 - 42.5]；门德兹小带吸虫46×37；普罗丰杜卢西小带吸虫57 [52 - 60]×27.8 [25 - 30]）。