一种新的下冠线虫属物种（线虫纲，毛圆科，细颈线虫亚科），寄生于委内瑞拉棉鼠（仓鼠科，棉鼠亚科）体内。

A new species of Hypocristata (Nematoda, Trichostrongyuna, Heligmosomoidea) a parasite of Sigmodon hispidus (Cricetidae, Sigmodontinae) from Venezuela.

作者信息

Durette-Desset M C, Guerrero R A

机构信息

Département de Systématique et evolution, Muséum national d'Histoire naturelle, UMR 7138 associée au CNRS, CP 52, 61, rue Buffon, 75251 Paris, France.

出版信息

Parasite. 2006 Sep;13(3):201-4. doi: 10.1051/parasite/2006133201.

DOI:10.1051/parasite/2006133201

PMID:17007211

Abstract

Description of Hypocristata tercera n. sp. (Heligmonellidae, Nippostrongylinae) a parasite of the small intestine of Sigmodon hispidus (Rodent, Sigmodontinae) from Venezuela. Two other species were described in the genus, both from Colombia and parasitic in Sigmodontinae. H. thomosomysi Durette-Desset, 1970, a parasite of Thomasomys sp. has about the same number of cuticular ridges at mid-body but differs by ridges having chitinoid struts, a caudal bursa pattern of type 2-2-1 (vs 1-3-1). H. anguillula Durette-Desset, 1970, a parasite of Sigmodontomys alfari (= Nectomys alfari) has the same caudal bursa pattern (type 1-3-1) but differs by the presence of ridges at mid-body in both sexes (absent at that level in H. tercera) and by ridges having chitinoid struts in female. This is the first report of the genus Hypocristata Durette-Desset, 1971 in Venezuela and in the genus Sigmodon (Sigmodontinae).

摘要

隐冠线虫属新种Hypocristata tercera的描述（希勒线虫科，类圆线亚科），寄生于委内瑞拉硬毛棉鼠（啮齿目，棉鼠亚科）小肠。该属已描述的另外两个物种均来自哥伦比亚，寄生于棉鼠亚科。1970年命名的托马斯棉鼠隐冠线虫H. thomosomysi，寄生于托马斯棉鼠属物种，虫体中部角质嵴数量相近，但角质嵴具几丁质样支柱，尾翼类型为2-2-1（对比1-3-1）。1970年命名的阿尔氏棉鼠隐冠线虫H. anguillula，寄生于阿尔氏棉鼠（= 水栖棉鼠），尾翼类型相同（1-3-1型），但两性虫体中部均有嵴（H. tercera该部位无嵴），且雌虫角质嵴具几丁质样支柱。这是1971年命名的隐冠线虫属在委内瑞拉以及棉鼠属（棉鼠亚科）中的首次报道。