广西猕猴体内枝腺科吸虫一新属新种记述(吸虫纲,枝腺科)

A NEW GENUS AND SPECIES OF LECITHODENDRIIDAE FROM GUANGXI MACACA MULATTO(TREMATODA,LECITHODENDRIIDAE)

记述从广西产猕猴小肠内检获的一种小型吸虫,经形态学研究与文献上所记载的同科近似属种比较,该吸虫具有高度发达的排泄囊,虫体细小,体被细棘,生殖孔开口于体前1/3左侧边缘,肠管细长延伸达睾丸后缘附近等特征确定为1新属新种。根据该吸虫巨大的排泄囊特征,定名为中华巨囊吸虫Megacystium sinensis gen.et sp.nov.。文中描述了新种形态结构及新属特征,并讨论了与同科近似属种的鉴别。

This paper reports a new genera and new species of Lecithodendriidae. The species was collected from a monkey （ Macaca mulatta） in Guangxi, China. The worm name Megacystium sinensis gen. et sp. nov is according to morphology characters. The specimens are deposited in the Parasitology Research Laboratory, College of Animal Science and Technology, Guangxi University. Description. Body small, thickening, pyriform or spherical, longish-round; heavily spined; length 1.13- 1.57 （1.56） mm, wideat part is posterior third of body 0.78-1.17 （1.00） mm. Oral sucker anterior end subventrally, 0.18-0.23 mm × 0.17-0.20 （0.19 × 0.198） mm; acetabulum projecting surface of body, in middle third of body, larger than oral sucker 0.20-0.25mm × 0.20-0.25 （0.20 × 0.216） mm; prepharynx and esophagus are short, pharynx ball-shaped, 0.07-0.11 mm ×0.09-0.13 （0.09 × 0.10） mm; intestinal ceca longer, surpassing postacebulum testes. Testes oval to round,symmetri-cal, lying on equatorial zone, right testis 0.21- 0.34 mm × 0.24-0.35 （0.25-0.29） mm. left testis 0.20- 0.30mm × 0.23-0.33 （0.05 × 0.29） mm cirrus poach large, oval, 0.31-0.48 mm × 0.17-0.24 （0.39 × 0.211） mm on anterior dorsal acetabulum. It contains seminal veside, prostains complex and ejaculatory duct. Genital pore on sinistral margin of body at level of ceca bifurcation. Ovary irregularly lobed, in anterior to right testis, 0.11-0.21 mm × 0.17-0.26 （0.15 × 0.26） mm. Uterus coils occupying most of hindbody, between acetabulurn and excretory veside. Vitellaria in forebody. unequally on both sides, on the right side it extends from level of pharynx tO testis, on the left side lying posteriorly genital pore to testis. Excretory veside saccular, very large, irregular inshape, 0.28-0.52 mm × 0.12-0.33 （0.38 × 0.21 ） mm. Excretory pore terminal or subterminaI. Eggsmall, oval, 0.029-0.039mm×0.014- 0.019 （0.031 × 0.015 ） mm. Intestinal parasites of monkey （Macaca mulatta）.