Digenetic Trematodes of Marine Fishes of India. Part II. Fellodistomatidae

Abstract

Ten species in the family Fellodistomatidae Nicoll, 1913, are reported from the marine fishes of India. New genera are: Jonesiella, Allobacciger, and Odontotrema and new species are: Faustula basiri, Jonesiella pomacanthi, Allobacciger macrorchis, Bacciger sardinellae, B. cochinensis, and Paradiscogaster farooqii. Monascus typicus (Odhner, 1911), and Tergestia clonacantha Manter, 1963, are reported for the first time from the Indian region. Faustula gangetica (Srivastava, 1935) Yamaguti, 1958, originally reported from Clupea ilisha, an anadromous species from Allahabad, is reported from a marine fish, Hilsa sinensis (= Clupea toli). A new name, Paradiscogaster yamagutii, is proposed for junior homonym of P. chaetodontis Yamaguti, 1942. The trematodes were collected at Bombay by A. H. Siddiqi in 1963 and by M. Hafeezullah at various places on the east and west coasts of India between 1964 and 1966. Part I (Hafeezullah and Siddiqi, 1970) comprising the families Bucephalidae and Cryptogonimidae is published elsewhere. The fishes were identified by the staff of the Central Marine Fisheries Research Institute, Mandapam, and their up-to-date scientific and common names and family names were provided by Mr. A. G. K. Menon of the Zoological Survey of India. All measurements in descriptions are in microns unless otherwise indicated. The sucker ratios have been calculated by using the transverse axes of both the suckers and taking the width of the oral sucker as one. In the descriptions where axes of measurements are not specifically mentioned, lengths are given first followed by widths. One asterisk indicates new host records and two asterisks indicate records of new locality. The holotypes and representative specimens of known species have been deposited with the Helminthological Collection of the U. S. National Museum. Family Fellodistomatidae Nicoll, 1913 Faustula basiri sp. n.