On Three Known Trematodes from African Birds, with Notes on the Genera Typhlocoelum, Paryphostomum and Petasiger

Abstract

In the Summer of 1943 Dr. P. L. leRoux, to whom I am very grateful for the material, madea collection of worm parasites of ducks and waterbirds, shot near the Kalunga River, Chunga Farm, Chinsali District, Northern Rhodesia. Three genera of Trematodes are represented in this material, two of which, as far as records show, viz. Typhlocoelum and Paryphostomum, whose members are widely distributed in Asia, Europe and America, are here recorded for the first time from the African Continent. Petasiger variospinosus is recorded from a new host and a new locality.

Redescription of Petasiger exaeretus Dietz, 1909 and P. phalacrocoracis (Yamaguti, 1939) (Trematoda: Echinostomatidae), parasites of cormorants

“…P. variospinosus can be distinguished from P. phalacrocoracis by its somewhat larger collar spines and the position of the acetabulum (Table I, II). P. variospinosus has also been reported by Bisseru (1957), who found it in Anhinga rufa levaiUantii from Northern Rhodesia (currently Zambia), and by Borgarenko (1984) in Phalacrocorax pygmaeus from Tadzhikistan.…”

“…), occurring mainly in the Palaearctic Region. The following Petasiger species have been reported to occur in cormorants: P. exaeretus Dietz, 1909 from Phalacrocorax carbo and P. pygmaeus from different regions of the European and Asian parts of the CIS [USSR], England, Germany, Poland, Hungary, Roumania, Yugoslavia, Bulgaria, Japan and Australia; P. variospinosus (Odhner, 1910) from Phalacrocorax africanus, P. pygmaeus and Anhinga rufa levaillantii in Africa and Tadzhikistan; P. phalacrocoracis (Yamaguti, 1939) from Phalacrocorax carbo hanedae, P. c. novaehollandiae, P. melanoleucus, P. sulcirostris and P. capillatus in Japan, the CIS [USSR] (the Volga Delta) and Australia; P. hospitale (Mendheim, 1940) from Phalacrocorax carbo in Germany and Azerbaidzhan; P. baschkirovi Ablassov & Iksanov, 1959, from Phalacrocorax carbo sinensis in Kirghizia and Azerbaidzhan; P. jubilarum (Elperina, 1937) from Phalacrocorax pygmaeus in Tadzhikistan; P. pungens (Linstow, 1894) from Phalacrocorax carbo in Azerbaidzhan; and P. nitidus Linton, 1928 from Phalacrocorax carbo and P. pygmaeus in Azerbaidzhan (Dietz, 1909(Dietz, , 1910Kotl~n, 1922;Davies, 1934;Yamaguti, 1939Yamaguti, , 1971Skrjabin et al, 1947;Bisseru, 1957;Ukoli, 1968;Bykhovskaya-Pavlovskaya, 1978;Iskova, 1983Iskova, , 1985Borgarenko, 1984;Brglez & Mu~,ini6, 1987;Moravec et al, 1988).…”

A revision of Petasiger Dietz, 1909 (Digenea: Echinostomatidae) and a key to its species

“…The description of P. variospinosus (Odhner, 1910) by Bisseru (1957) contains metrical data for the size of the body, pharynx, and oral and ventral suckers, which fall well below the lower range for this species and agree better with the description of P. minutissimus. In fact, the material described by Bisseru (1957) exhibits all of the characteristic features of the latter (see above) with the exception of the number of collar spines.…”

“…In fact, the material described by Bisseru (1957) exhibits all of the characteristic features of the latter (see above) with the exception of the number of collar spines. However, Bisseru's detail (Fig.…”

“…Gogate (1934); 2. Bisseru (1957). Definitive hosts: Dendrocygna javanica (type-host) (1); Anhinga rufa levaillantii (2).…”