Selfcoelum brasilianum Stossich 1902, n. comb.
Creators: name: Dronen, Norman O.
name: Blend, Charles K.
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Platyhelminthes
Trematoda
Echinostomida
Cyclocoelidae
Selfcoelum
Selfcoelum brasilianum

description: S. brasilianum (Stossich, 1902) n. comb.
Type host. Lesser yellowlegs, Tringa flaviceps (Gmelin) (Syn. Scolopax flaviceps Gmelin) (Charadriiformes: Scolopacidae).
Type location. Specimens at the Berlin Museum collected from Brazil.
Additional hosts. NHMUK on-line Host-Parasite Database lists 17 avian host species under Cyclocoelum brasilianum Stossich, 1902 (see below).
Additional localities. NHMUK on-line Host-Parasite Database lists 5 localities and 19 references under Cyclocoelum brasilianum Stossich, 1902 (see below).
Previously proposed synonyms. Haematotrephus phaneropsolus Stossich, 1902 — Bashkirova (1950); Cyclocoelum halli Harrah, 1922 (= Harrahium halli [Harrah, 1922]), Cyclocoelum nittanyense Zeliff, 1946 (= Haematotrephus nittanyense [Zeliff, 1946])— Dubois (1959); Cyclocoelum halli (= Harrahium halli), Corpopyrum brasilianum (Stossich, 1902) — Joyeux & Baer (1927).
Remarks. In the original description of Cyclocoelum brasilianum Stossich, 1902, only a body length and width were provided, but Stossich noted that “in Berlin, the jar bearing the label 2494 Monostomum mutabile Zeder, contained 4 specimens collected by Olfersin from the thorax and abdomen of Scolopax flaviceps (Ypanema in Brazil)”. Kossack (1911) redescribed this species based on what appears to be the same four specimens mentioned by Stossich (1902) housed in the Berlin Museum (No. 2494) that were apparently collected from Tringa flaviceps (Syn. Scolopax flaviceps) from Ypanema, Brazil, and a specimen in the Wiener collection (No. 522) labelled as M. mutabile, which was collected from T. flaviceps also from Brazil. These specimens have a pretesticular ovary that forms a triangle with the testes (Haematotrephinae) (Fig. 6 of Kossack 1911). Apparently, based on Kossack’s interpretation of C. brasilianum, Bashkirova (1950) moved this species to Haematotrephus. Later Kanev et al. (2002a) established Neohaematotrephus where the pretesticular ovary forms a triangle with the testes and the genital pore is prepharyngeal, with Neohaematotrephus brasilianum (Stossich, 1902) as the type species. These authors apparently based this placement on the interpretations of this species by Kossack (1911) and later Bashkirova (1950); however, it is noteworthy that Kanev et al. (2002a) considered N. brasilianum to have the vitelline fields confluent posteriorly (Fig. 20.14), while Kossack (1911) and Bashkirova (1950) considered them not to be confluent. As originally described and illustrated by Stossich (1902), C. brasilianum (= Selfcoelum brasilianum n. comb.) has an intertesticular ovary that forms a triangle with the testes (Cyclocoelinae), a postpharyngeal genital pore and vitelline fields that are not confluent posterior, placing it in Selfcoelum, and in our opinion it is unlikely that the specimens noted by Stossich (1902) and later examined by Kossack (1911) represent this species (Fig. 6 of Kossack 1911). Further, Bashkirova’s Fig.150 of Haematotrephus brasilianum and Fig. 20.14 of N. brasilianum (Kanev et al. 2002a; ovary pretesticular, genital pore prepharyngeal) do not appear to represent the same genus as the specimens originally described by Stossich (1902) (Figs. 7 and 8 of Stossich 1902). Yamaguti (1958) transferred this species to Corpopyrum; however, Corpopyrum has been synonymized with Haematotrephus (Kanev et al. 2002a). No oral or ventral sucker described—Stossich (1902).
description: Published as part of Dronen, Norman O. & Blend, Charles K., 2015, Updated keys to the genera in the subfamilies of Cyclocoelidae Stossich, 1902, including a reconsideration of species assignments, species keys and the proposal of a new genus in Szidatitreminae Dronen, 2007, pp. 1-100 in Zootaxa 4053 (1) on page 19, DOI: 10.11646/zootaxa.4053.1.1, http://zenodo.org/record/237117