Four new species of the genus Paraustrorhynchus (Rhabdocoela: Kalyptorhynchia: Polycystididae)

被引：4

作者：

Lin, Yitao ^{[1
]}

Reygel, Patrick ^{[2
]}

Feng, Weitao ^{[1
]}

Chen, Jiajia ^{[1
]}

Tessens, Bart ^{[2
]}

Van Steenkiste, Niels W. L. ^{[2
]}

Schockaert, Ernest R. ^{[2
]}

Artois, Tom J. ^{[2
]}

Wang, Antai ^{[1
]}

机构：

[1] Shenzhen Univ, Coll Life Sci & Oceanog, Shenzhen Key Lab Marine Bioresource & Ecoenvironm, Shenzhen, Peoples R China

[2] Hasselt Univ, Ctr Environm Sci, Res Grp Zool Biodivers & Toxicol, Martelarenlaan 42, B-3500 Hasselt, Belgium

来源：

ZOOTAXA | 2019年 / 4550卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Platyhelminthes; Rhabditophora; Eukalyptorhynchia; taxonomy; 18S rDNA; 28S rDNA; 1ST RECORD; MACROSTOMUM PLATYHELMINTHES; CHINA; TRICLADIDA;

D O I：

10.11646/zootaxa.4550.3.4

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

Four new species of Paraustrorhynchus (Rhabdocoela: Kalyptorhynchia: Polycystididae) are described: two from Southern China (P. shenda n. sp., P. sinensis n. sp.), one from New Caledonia (P. isoldeae n. sp.), and one from India (P. smeetsae n. sp.). All four species show a typical dark blue dorsal pigmentation pattern, which is unique to the genus. This pigment forms a broad longitudinal line in P. shenda n. sp. and P. sinensis n. sp., shows an additional transverse band at the level of the pharynx in P. smeetsae n. sp. and forms a Y-shaped pattern in P isoldeae n. sp. The four species can also be distinguished from each other and their congeners by the detailed morphology of the hard parts of the male system, which in all cases consists of an L-shaped (P. shenda n. sp., P. isoldeae n. sp) or slightly-curved (P. smeetsae n. sp., P. sinensis n. sp.) prostate stylet type II and a prostate stylet type III, which consists of three plates: a basal plate from which two longer plates depart, each with a distal serrated rim. A phylogenetic analysis based on 18S and 285-rDNA data indicates that Paraustrorhynchus is a monophyletic taxon within Polycystidinae, with Alcha evelinae as the sister group.

引用

页码：357 / 373

页数：17

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