Cichlidogyrus cirratus Paperna, 1964

Cichlidogyrus cirratus Paperna, 1964: 4, 5, figs 10, 11.

Cichlidogyrus nematocirrus Paperna, 1969: 863, figs 54, 55; 1979: 13, pl. 3, figs 3-7.

TYPE MATERIAL. — Of C. cirratus: Holotype and paratypes in the helminthological collection of the Department of Parasitology Hebrew University, Hassad Medical School, Israel, no number mentioned.

Of C. nematocirrus: Holotype: MRAC M.T. 35.583 (Paperna 1979).

TYPE HOST. — Of C. cirratus: Sarotherodon galilaeus (Linnaeus, 1758) .

Of C. nematocirrus: Oreochromis niloticus (Linnaeus, 1758) (Paperna 1979) .

TYPE LOCALITY. — Of C. cirratus Tiberias Lake, Israel. Of C. nematocirrus: Man-made Volta Lake, Ghana.

ADDITIONAL HOST. — Of C. cirratus: Oreochromis niloticus (Ergens 1981) .

Of C. nematocirrus: Tilapia zillii (Gervais, 1848), Oreochromis variabilis (Boulenger, 1906) and Oreochromis esculentus (Graham, 1928) (Paperna 1979) .

SITE. — Gills.

ADDITIONAL LOCALITIES. — Cairo, Nile River, Egypt (Ergens 1981) on O. niloticus . Senegal on type host (nobis).

REMARKS

Cichlidogyrus cirratus and C. nematocirrus have high morphological similarities and are both found on O. niloticus . The only difference between these two species is the length of the penis (320 vs. 145 µm) which is not easy to measure (very long, sinuous and thin penis), thus we consider that C. nematocirrus is a junior synonym of C. cirratus .