Morishitium polonicum Machalska, 1980

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 : 74

M. polonicum ( Machalska, 1980) n. comb.

Type host. Song thrush, Turdus philomelos Brehm ( Passeriformes : Turdidae )— Sulgostowska & Czaplińska (1987).

Type locality. Baltic coast, Poland—Sulgostowska & Czaplińska (1987).

Additional host. Common blackbird, Turdus merula Linnaeus ( Passeriformes : Turdidae )— Machalska (1980), Sulgostowska & Czaplińska (1987), Giovannetti (1988); unidentified passeriform—Bona et al. (1995).

Additional locality. Italy—Giovannetti (1988), Bona et al. (1995).

Remarks. Machalska (1980) originally described Cyclocoelum polonicum Machalska, 1980 from two species of Turdus Linnaeus in Poland; however, we elected to use only those measurements from T. philomelos because of the large differences between the maximum egg size in specimens from this host (139 x 69) when compared to those from T. merula (150 x 81), which suggests that there may be two species of Morishitium represented in Table II of the original description. We did not name the second potential species because we had no access to the original material used in the description. This species as represented by the specimens from T. philomelos has an intertesticular ovary that forms nearly a straight line with the nearly tandem testes (Hyptiasminae), a postpharyngeal genital pore and the vitelline fields are not confluent posteriorly, placing it in Morishitium . Rudimentary oral sucker present—Machalska (1980).