Selfcoelum oculobia, (Cohn, 1902)

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, Zootaxa 4053 (1), pp. 1-100 : 83

Spaniometra oculobia ( Cohn, 1902) — Type and only species

Type host. Grey plover, Pluvialis squatarola (Linnaeus) (Syns. Squatarola squatarola [Linnaeus]; Vanellus melanogaster Bechstein ) ( Charadriiformes : Charadriidae )— Yamaguti (1971). Given as “ Vanelli melanogastri ” in the original description.

Type locality. Germany; specific type locality unknown.

Remarks. This species was originally described as Monostomum oculobium Cohn, 1902 , but was described as not having a cirrus sac. Spaniometra Kossack, 1911 was considered to be a synonym of Ophthalmophagus Stossich, 1902 by Gower (1939). Kossack (1911) generally accepted the description of Cohn (1902), but he found the cirrus sac to be present in the original material used by Cohn (1902) from the Institute of Greifswald Collection and provided a more complete illustration of the species. Kossack (1911) and Yamaguti (1971) considered the vitelline fields to be confluent posteriorly in S. oculobia (type species of this genus); however, Kanev et al. (2002a, Fig. 20.9) and Dronen (2007a) considered the vitelline fields to be not confluent posteriorly in this genus based on “ Spaniometra variolaris ( Fuhrmann, 1904) ” (= Bothrigaster variolaris [ Fuhrmann, 1904]). In S. oculobia the posttesticular ovary forms nearly a straight line with the tandem testes (Ophthalmophaginae), the testes are somewhat separated from each other and located some distance anterior to the ovary near the midbody, and the vitelline fields are confluent posteriorly, placing it in Spaniometra. In this species the posttesticular space is extensive, 4,500 long or more, or about 50% of body length (see Fig. 16 ). No oral or ventral sucker present—Cohn (1902); Kossack (1911) and Bashkirova (1950).

Figures

FIGURES 14 – 18. Diagrammatic representations of species representing the genera assigned to Ophthalmophaginae Harrah, 1922. 14. Ophthalmophagus Stossich 1902 represented by Ophthalmophagus bucephali Dronen & Blend, 2007, adapted from Dronen & Blend (2007); 15. Bothrigaster Dollfus, 1948 represented by Bothrigaster variolaris (Fuhrmann, 1904) adapted from Fuhrmann (1904); 16. Spaniometra Kossack, 1911 represented by Spaniometra oculobia (Cohn, 1902), adapted from Cohn (1902); 17. Porphyriotrema Duggal & Toor, 1985 represented by Porphyriotrema indica Duggal & Toor, 1985, adapted from Duggal & Toor (1985); 18. Promptenovum Witenberg, 1923 represented by Promptenovum vanbenedeni Witenberg, 1923 (= Monostomum mutabile Zeder of van Beneden 1858), adapted from van Beneden (1858) and Kanev et al. (2002 a). Abbreviations: A, ventral sucker; C, cecum; G, genital pore; O, ovary; P, pharynx; T, testis; U, uterus; V, vitelline field.