Cyclocoelidae Stossich, 1902

Dronen, Norman O., 2007, Revision of the family Cyclocoelidae Stossich, 1902 with the proposal of two new subfamilies and the description of a new species of Morishitium Witenberg, 1928 from the common snipe, Gallinago gallinago, from Texas, U. S. A., Zootaxa 1563, pp. 55-68 : 59

Key to subfamilies of Cyclocoelidae Stossich, 1902

1a. Ovary forming a triangle with the testes..................................................................................................... 2.

1b. Ovary nearly in a straight line with testes................................................................................................... 4.

2a. Ovary intertesticular ......................................................................... Cyclocoelinae Stossich, 1902 ( Fig. 1 ).

2b. Ovary pretesticular or posttesticular........................................................................................................... 3.

3a. Ovary pretesticular to opposite anterior testis .............................Haematotrephinae Dollfus, 1948 ( Fig. 2 ).

3b. Ovary posttesticular or opposite posterior testis........................................ Szidatitreminae n. subf. ( Fig. 3 ).

4a. Ovary posttesticular....................................................................Ophthalmophaginae Harrah, 1922 ( Fig.4 ).

4b. Ovary intertesticular ................................................................................................................................... 5.

5a. Testes tandem to nearly tandem.......................................................... Hyptiasminae Dollfus, 1948 ( Fig. 5 ).

5b. Testes nearly side by side........................................................................Skrjabinocoelinae n. subf. ( Fig. 6 ).

Figures

FIGURES 1 – 6. Six basic body types found in cyclocoelids. 1. Body type 1 for Cyclocoelinae; ovary intertesticular forming a triangle with the testes; represented by Selfcoelum limnodromi adapted from Dronen et al. (2006 a). 2. Body type 2 for Haematotrephinae; ovary pretesticular to opposite the anterior testis forming a triangle with the testes; represented by Heamatotrephus limnodromi adapted from Dronen et al. (2006 b). 3. Body type 3 for Szidatitreminae n. sub.; ovary postesticular to opposite posterior testis forming a triangle with the testes; represented by Szidatitrema yamagutii adapted from Dronen et al. (2006 c). 4. Body type 4 for Ophthalmophaginae; ovary postesticular in a longitudinal straight line with the testes; represented by Ophthalmophagus bucephali adapted from Dronen & Blend (2007). 5. Body type 5 for Hyptisaminae; ovary intertesticular in a longitudinal straight line with the testes; represented by Allopyge americanensis n. comb. adapted from Dronen & Blend (2005). 6. Body type 6 for Skrjabinocoelinae n. subf.; ovary intertesticular in a transverse row with the testes; represented by Skrjabinocoelum petrowi Kurashvili, 1953 adapted from Kurashvili (1953). Abbreviation: T, testis.