{"title":"Description of Trithornus aquatica gen. n. sp. n. (Nemtoda:Cephalobina) from aquatic habitat, India.","authors":"Nadia Sufyan","doi":"10.22067/ijab.v12i2.56632","DOIUrl":null,"url":null,"abstract":"Abstract: A new cephalobid nematode, Trithornus aquatica gen. n. sp. n. has been described and illustrated. The new genus can be distinguished by the unique shape of its labial probolae, consisting of swollen labial shaft and a trifurcated apical section. The cephalic probolae is triangular in shape. Cuticle is transversely annulated, lateral field with five incisors, outer ones being undulate. The stoma comprises of cheilostom with granular rhabdia, gymnostom narrower than cheilostom and stegostom. Stegostome can be differentiated into three parts meta, meso and telo. A tooth is present on mesostegostome. Females have cephaloboid type of reproductive system. Tail is elongate conoid with a pointed tip. Males were not found. The newly described genus closely resembles Acrobeles Linstow, 1877, Chiloplacus Thorne, 1937 and Cervidellus Thorne, 1937 in having similar stoma, furcated labial probolae, simple cuticle and cephaloboid type of female gonad with a post uterine sac. But, is clearly distinguishable by the related genera on the basis of the shape of labial probolae and the presence of outer undulated lateral lines. A dichotomous key to the identification of the genus has also been provided.","PeriodicalId":14532,"journal":{"name":"Iranian Journal of Animal Biosystematics","volume":"26 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2016-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Iranian Journal of Animal Biosystematics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.22067/ijab.v12i2.56632","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Abstract: A new cephalobid nematode, Trithornus aquatica gen. n. sp. n. has been described and illustrated. The new genus can be distinguished by the unique shape of its labial probolae, consisting of swollen labial shaft and a trifurcated apical section. The cephalic probolae is triangular in shape. Cuticle is transversely annulated, lateral field with five incisors, outer ones being undulate. The stoma comprises of cheilostom with granular rhabdia, gymnostom narrower than cheilostom and stegostom. Stegostome can be differentiated into three parts meta, meso and telo. A tooth is present on mesostegostome. Females have cephaloboid type of reproductive system. Tail is elongate conoid with a pointed tip. Males were not found. The newly described genus closely resembles Acrobeles Linstow, 1877, Chiloplacus Thorne, 1937 and Cervidellus Thorne, 1937 in having similar stoma, furcated labial probolae, simple cuticle and cephaloboid type of female gonad with a post uterine sac. But, is clearly distinguishable by the related genera on the basis of the shape of labial probolae and the presence of outer undulated lateral lines. A dichotomous key to the identification of the genus has also been provided.
印度水生trithorus aquatica gen. n. sp. n.描述(neomtoda:Cephalobina)。
摘要:报道了一种新的头形线虫trithorus aquatica gen. n. sp. n.。新属可以区分其独特形状的唇问题,包括肿胀的唇轴和一个三叉的根尖部分。头侧问题鼻呈三角形。角质层横环状,外侧有五个门齿,外侧为波状。口包括有颗粒状横纹肌的舌口、比舌口窄的裸骨口和舌口。剑石可分为近端、中端和远端三部分。一颗牙齿出现在间骨瘤上。女性的生殖系统是类头体。尾巴长圆锥形,尖端尖。没有发现男性。新描述的属与Acrobeles Linstow(1877)、Chiloplacus Thorne(1937)和Cervidellus Thorne(1937)有相似的气孔、分叉的唇问题、简单的角皮和头状型的雌性性腺和子宫后囊非常相似。但是,根据唇唇问题的形状和外部波动侧线的存在,可以清楚地区分出相关属。还提供了鉴定该属的二分法关键。