Cyclocoelum nebularium, Khan, 1935

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 : 56

H. nebularium ( Khan, 1935) n. comb.

Type host. Common greenshank, Tringa nebularia (Gunnerus) (Syn. Glottis nebularia Gunnerus ) ( Charadriiformes : Scolopacidae ).

Type locality. Allahabad, Allahabad District, India.

Remarks. Originally described as Cyclocoelum nebularium Khan, 1935 , this species was transferred to Corpopyrum (= Haematotrephus ) by Yamaguti ( 1958). It was considered to be a synonym of Cyclocoelum ( Haematotrephus) kossacki ( Witenberg, 1923) (= H. kossacki [ Witenberg, 1923] n. comb.) by Dubois ( 1965). The pretesticular ovary forms a triangle with the testes (Haematotrephinae), the genital pore is postpharyngeal (see Fig. 1 of the original description), and the vitelline fields were described as being confluent except for in one specimen where they were not confluent ( Khan 1935). As previously mentioned, the posterior confluence of the vitelline fields is often hidden in cyclocoelids by the egg-laden uterus and cyclocoel, but it is also possible that more than one species was used in the original description of this species. Braun ( 1901) mistakenly considered the pharynx to be the oral sucker in cyclocoelids—Harrah ( 1922) and Khan ( 1935). No oral or ventral suckers described—Khan ( 1935); Harrah ( 1922) and Bashkirova ( 1950).