Dr. Kassai Tibor - Dr. Murai Éva szerk.: Parasitologia Hungarica 6. (Budapest, 1973)

Parasit. Hung. 6. 1973. Morphological Studies on Bothriocephalus gowkongensis Yeh, 1955 and B. phoxini Molnár, 1968 ( Cestoda » Pseudophyllidea) Dr. Kálmáü MOLNÁR — Dr. Éva MURAI Veterinary Research Institute of the Hungarian Academy of Sciences, Budapest — Zoological Department of the Hungarian Natural History Museum, Budapest "Morphological Studies on Bothriocephalus gowkongensis Yeh, 1955 and B.phoxini Molnár, 1968 (Cestoda, Pseudophyllidea )" - Molnár, K., Murai, É. - Parasit. Hung. 6. 99-110. 1973. Morphological investigation and differential diagnosis of Bothriocephalus phoxini Molnár, 1968, and B.gowkongensi

s Yeh, 1955, collected from Cyprinidae in Hungary7 as well as data of the holotype and paratypes of B

. phoxini are described. It is proposed that until the clarification of the possible synonymies between B. acheilognathi Yamaguti, 1934, B. opsa- riichthydis Yamaguti, 1934, and B. gowkongensis Yeh, 1955, described from Par East waters for the parasite occurring in Europe the species name of B. gowkongensis Yeh, 1955 should be used. In his monograph YAMAGUTI (1959) listed 71 species of Bothrio cephalus parasites of fishes. Most of these species are considered to live in maritime fishes or in those passing the greater part of their life in the sea^ The number of species described from typically fresh-water fishes is remarkably low. Prom the Eurasian continent we have knowledge of only 4 species: Bothriocephalus acheilognathi Yamaguti, 1934, B. opsariichthy- dis Yamaguti, 1934, B. gowkongensis Yeh, 1955 and B

. phoxini Molnár,1968. All species originate from fishes belonging to the Cyprinidae. YAMAGUTI (1934) was the first to describe two species under the names B. acheilognathi and B. opsariichthydis from the fishes Acheilognathus rhombea and Opsariichthys uncirostris. These species were considered identical by YEH (1955), but at the same time he himself described a new species called B.gowkongensis

. YEH distinguished his species from the previous ones by their eggs having been laid in fully embryonated stage,