Morishitium feizullaevi Feizullaev 1980, n. comb.

• Main Authors: Dronen, Norman O., Blend, Charles K.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2015
• Subjects: Biodiversity; Taxonomy; Animalia; Platyhelminthes; Trematoda; Plagiorchiida; Cyclocoelidae; Morishitium; Morishitium feizullaevi; Olor; Anser fabalis; Aythya marila; greater scaup
• Online Access: https://zenodo.org/record/6109164; https://doi.org/10.5281/zenodo.6109164

M. feizullaevi (Feizullaev, 1980) n. comb. Type host. Black swan, Cygnus atratus (Latham) (Anseriformes: Anatidae). Type localities. Russian Federation; specific type locality unknown. Additional hosts. Mute swan, Cygnus olor (Gmelin); greylag goose, Anser anser (Linnaeus); bean goose, Anser fabalis (Latham); American Pekin duck, Anas platyrhynchos domestica Linnaeus (a form of mallard duck); gadwall, Anas strepera Linnaeus; greater scaup, Aythya marila (Linnaeus) (Anseriformes: Anatidae)— Feizullaev (1980). Remarks. Feizullaev (1980) described a species, Prohyptiasmus robustus (Stossich, 1902), that he believed might be Cyclocoelum robustum Stossich, 1902; however, unlike C. robustum as originally described by Stossich (1902), the species described by Feizullaev (1980) had the intertesticular ovary in a straight line with the tandem testes (Hyptiasminae) and a postpharyngeal (Fig. 24 a of Feizullaev 1980) rather than a prepharyngeal genital pore. Kanev et al. (2002 a) apparently observed this difference and proposed a new genus, Neohyptiasmus (= Morishitium) and renamed P. robustus of Feizullaev, 1980 as Neohyptiasmus feizullaevi Kanev, Radev & Fried, 2002, proposing N. feizullaevi as the type and only species in Neohyptiasmus. Dronen (2007 a) considered Neohyptiasmus to be a synonym of Morishitium because the vitelline fields in M. feizullaevi (Feizullaev, 1980) are not confluent posteriorly. No oral or ventral suckers described—Feizullaev (1980). 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 74, DOI:10.11646/zootaxa.4053.1.1, http://zenodo.org/record/237117