Redescription of Illiosentis cetratus Van Cleave, 1945 (Acanthocephala: Illiosentidae) from Menticirrhus undulatus (Girard) in California, with notes on Illiosentis furcatus from Peru.

IF 1.5 4区 医学 Q3 PARASITOLOGY
Omar M Amin, Anshu Chaudhary, Hridaya S Singh
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引用次数: 0

Abstract

Illiosentis Van Cleave et Lincicome, 1939 initially included two species: Illiosentis furcatus Van Cleave et Lincicome, 1939 found in the West Atlantic from Cape Cod in Massachusetts, USA to northern Argentina and Illiosentis cetratus Van Cleave, 1945 with restricted distribution in the Pacific coast of southern California. We are reporting I. furcatus from Peru for the first time and describe a population of I. cetratus from the California corbina, Menticirrhus undulatus (Girard), from southern California. The proboscis hook formula was 14 longitudinal rows for I. furcatus of 18-23 hooks each compared to 16 rows of 19-24 hooks each reported by Van Cleave (1945). We complete the inadequate description of I. cetratus with new information on sexual differentiation in the length of the trunk, dorsal vs. ventral hooks, hook roots, trunk spines, two types of anterior recurved rooted hooks vs. posterior rootless straight hooks, measurements of dorsal and ventral hooks and spines, shape of hook roots, terminal position of the female gonopore, and of position of the cephalic ganglion at the anterior margin of the trunk. We also include new details of the reproductive system in both sexes including Saefftigen's pouch and cement gland ducts. We present new SEM and light microscope images. The Energy Dispersive X-ray analysis (EDXA) shows a high level of sulfur in anterior, middle and posterior hooks in various hook sites, as well as spectra of hook tips with a higher relative concentration of sulfur compared to other hook sites. For the placement of I. cetratus, phylogenetic analysis of sequences of three molecular markers, 18S, 28S rRNA and mitochondrial cox 1 genes, was performed with other related available sequences. The resulting analysis illustrated that I. cetratus was nested within a separate clade along with species of two genera, Dentitruncus truttae Sinzar, 1955 and Neotegorhynchus cyprini Lisitsyna, Xi, Orosová, Barčák et Oros, 2022 represented our species of Illiosentis separate from species of Tegorhynchus Van Cleave, 1921 (as also according to the morphology) with which the Illiosentis species were previously synonymised.

对加利福尼亚州波纹卷须虫(Girard)的Illiosentis cetratus Van Cleave的重新描述,1945年(棘头目:Illiosentidae),并对秘鲁的Illiosensis furcatus进行了注释。
Illiosentis Van Cleave et Lincicome,1939年最初包括两个物种:Illiosenis furcatus Van Cleave and Lincicomes,1939年发现于从美国马萨诸塞州科德角到阿根廷北部的西大西洋。我们首次报道了来自秘鲁的I.furcatus,并描述了来自加利福尼亚corbina的I.cetratus种群,来自加利福尼亚南部的Menticirchus undulatus(Girard)。Van Cleave(1945)报道的长鼻钩公式为14排,每排18-23个钩,而长鼻钩为16排,每列19-24个钩。我们用关于躯干长度、背侧钩与腹侧钩、钩根、躯干棘、两种类型的前下弯有根钩与后无根直钩、背侧和腹侧钩和棘的测量、钩根的形状、雌性生殖孔的末端位置的性别分化的新信息来完成对I.cetratus的不充分描述,以及位于躯干前边缘的头神经节的位置。我们还包括了两性生殖系统的新细节,包括Saefftigen的小袋和水泥腺管。我们展示了新的SEM和光学显微镜图像。能量分散X射线分析(EDXA)显示,在各个钩部位的前钩、中钩和后钩中存在高水平的硫,以及与其他钩部位相比硫相对浓度更高的钩尖的光谱。为了放置I.cetratus,用其他相关的可用序列对三个分子标记18S、28S rRNA和线粒体cox 1基因的序列进行了系统发育分析。结果分析表明,I.cetratus与两个属的物种嵌套在一个单独的分支中,Dentitruncus truttae Sinzar,1955年和Neotegorhynchus cyprini Lisitsyna,Xi,Orosová,Barčák et Oros,2022年代表了我们的Illiosentis物种,与Tegorhynchus Van Cleave物种分离,1921年(同样根据形态学),Illiosentis物种以前与之同义。
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来源期刊
Folia Parasitologica
Folia Parasitologica 医学-寄生虫学
CiteScore
2.70
自引率
0.00%
发文量
25
审稿时长
>12 weeks
期刊介绍: FOLIA PARASITOLOGICA, issued in online versions, is an international journal that covers the whole field of general, systematic, ecological and experimental parasitology. It publishes original research papers, research notes and review articles. Contributions from all branches of animal parasitology, such as morphology, taxonomy, biology, biochemistry, physiology, immunology, molecular biology and evolution of parasites, and host-parasite relationships, are eligible. Novelty and importance in the international (not local or regional) context are required. New geographical records of parasites, records of new hosts, regional parasite and/or host surveys (if they constitute the principal substance of manuscript), local/regional prevalence surveys of diseases, local/regional studies on epidemiology of well known diseases and of parasite impact on human/animal health, case reports, routine clinical studies and testing of established diagnostic or treatment procedures, will not be considered. One species description will also not be considered unless they include more general information, such as new diagnostic characters, host-parasite associations, phylogenetic implications, etc. Manuscripts found suitable on submission will be reviewed by at least two reviewers.
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