Uvitellina macroisophaga, Hannum & Wilson, 1934

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 : 45

U. macroisophaga Hannum & Wilson, 1934

Type host. Killdeer, Charadrius vociferus Linnaeus (Syn. Oxyechus vociferous [Linnaeus]) (Charadriifromes: Charadriidae ).

Type locality. Loma Portal, California, USA.

Remarks. This species was considered to be a synonym of Cyclocoelum (H.) lanceolatum ( Wedl, 1858) by Dubois (1959) and of U. pseudocotylea Witenberg, 1923 by Bashkirova (1950). It should be noted that although Hannum & Wilson (1934) gave the pharynx width as 143–171 (pharynx wider than oral sucker; ratio of the widths of the pharynx and oral sucker about 1:0.8) in the original description, as appears to be the case in their Fig. 1 ; however, Fig. 2 shows the oral sucker to be a little wider than the pharynx (about 230; ratio of the widths of the pharynx and oral sucker about 1:1.1). Rudimentary oral sucker present—Hannum & Wilson (1934).

Figures

FIGURES 1 – 4. Diagrammatic representations of species representing the genera assigned to Cyclocoelinae Stossich, 1902. 1. Cyclocoelum Brandes, 1892 represented by Cyclocoelum mutabile (Zeder, 1800), adapted from Kossack (1911); 2. Selfcoelum Dronen, Gardner, & Jiménez, 2006 represented by Selfcoelum limnodromi Dronen, Gardner, & Jiménez, 2006, adapted from Dronen et al. (2006 a); 3. Psophiatrema Dronen & Kinsella, 2009 represented by Psophiatrema greineri Dronen & Kinsella, 2009, adapted from Dronen & Kinsella (2009); 4. Circumvitellatrema Dronen, Greiner, Ialeggio & Nolan, 2009 represented by Circumvitellatrema momota Dronen, Greiner, Ialeggio & Nolan, 2009, adapted from Dronen et al. (2009). Abbreviations: C, cecum; G, genital pore; O, ovary; P, pharynx; S, rudimentary oral sucker; T, testis; U, uterus; V, vitelline field.