Cyclocoelum vicarium Arnsdorff 1908, n. comb.

• Main Authors: Dronen, Norman O., Blend, Charles K.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2015
• Subjects: Biodiversity; Taxonomy; Animalia; Platyhelminthes; Trematoda; Plagiorchiida; Cyclocoelidae; Cyclocoelum; Cyclocoelum vicarium; Calidris alpina; Calidris maritima; Eurasian Curlew; Numenius arquata; Purple Sandpiper
• Online Access: https://doi.org/10.5281/zenodo.6108986; http://treatment.plazi.org/id/317187CDFFF2770CBEB0A13E98018C93

S . vicarium (Arnsdorff, 1908) n. comb. Type host. Purple sandpiper, Calidris maritima Brünnich (Syn. Arquatella maritime [Gmelin]) (Charadriiformes: Scolopacidae). Type locality. Labrador, Canada. Additional hosts. Eurasian curlew, Numenius arquata (Linnaeus) and dunlin, Calidris alpina (Linnaeus) (Syn. Tringa alpina Linnaeus) (Charadriiformes: Scolopacidae)— Yamaguti (1971); common greenshank, Tringa nebularia (Gunnerus) (Charadriiformes: Scolopacidae)— Bourgat et al . (1999). Additional localities. Europe, specific locality unknown—Yamaguti (1971); Togolese Republic (Togo), Africa—Bourgat et al . (1999). Previously proposed synonym. Cyclocoelum mehrii Khan, 1935 (= Selfcoelum mehrii [Khan, 1935] n. comb.)— Bashkirova (1950); Dubois (1959). Remarks. This species was originally described as Monostomum vicarium Arnsdorff, 1908. It was redescribed as Cyclocoelum vicarium (Arnsdorff, 1908) by Harrah (1922). It was considered a synonym of Cyclocoelum ovopunctatum Stossich, 1902 (= Selfcoelum ovopunctatum [Stossich, 1902] n. comb.) by Bashkirova (1950) and Dubois (1959), and of Cyclocoelum obscurum (Leidy, 1887) by Joyeux & Baer (1927). The original description of this species by Arnsdorff (1908) apparently was based on two separate species representing different genera in two separate subfamilies. Figure 1 of the original description likely represents Selfcoelum vicarium n. comb. (Syn. Monostomum vicarium ) because it has an intertesticular ovary forming a triangle with the testes (Cyclocoelinae), a genital pore that is postpharyngeal and the vitelline fields are not confluent posteriorly (= Selfcoelum ). The second possible species, as shown in Fig. 2, appears to have a pretesticular ovary forming a triangle with the testes (Haematotrephinae), a genital pore that is postpharyngeal, vitelline fields that are not confluent posteriorly and the testes are oblique, and it would likely be assigned to Haematotrephus . However, with the lack of information concerning this second species, we have not distinguished it ...