The morphology ofTrypanosoma striatin.sp., from an Indian fresh-water fish

Abstract

The new species of Trypanosoma described in this paper is parasitic in the blood of Ophicephalus ( = Ophiocephalus) striatus Bl., an air-breathing teleostean ‘Serpentfish’ found extensively in the fresh waters of India. This fish is one of the important food-fishes of India, especially in areas far away from the sea, which are mainly served by inland fisheries. It is equipped with an elaborate accessory air-breathing organ and therefore survives when taken out of water and kept in a moist condition. This hardiness of the fish has made it a popular item of diet since it is available in the hottest months of the summer in a fresh condition or even alive. With the expansion of the inland fisheries of India the importance of fishes of the genus Ophicephalus is also on the increase.

On the occurrence of trypanosomes in the blood of some freshwater teleosts of Lucknow (U.P.), India

“…Distribution of piscine trypanosomes has been well reported from many parts of the world (Kudo 1923;Laird 1951;Saunders 1959;Baker 1960;Abolarin 1970;and So 1972) including the Indian sub-continent (De-Mello and Valles 1936;Quadri 1955Quadri , 1962Hasan and Qasim 1962;Tandon and Joshi 1973). But not much is known regarding the wider distribution of this haemoflagellate parasitising the freshwater fishes of India.…”

Three new species of haematozoans from freshwater teleosts (pisces)

“…A high degree of polymorphism was also evident. The morphometric differences from the twentytwo species of the trypanosomes described earlier from the Indian freshwater teleosts viz, four species by Qadri (1955Qadri ( , 1962, one by Hasan and Qasim (1962), one by Misra et al (1973), two by Tandon and Joshi (1973), two by Ray-Chaudhury and Misra (1973), one by Pandey and Pandey (1964), seven by Mandal (1975Mandal ( , 1977Mandal ( , 1978Mandal ( and 1979 and four by Joshi (1976 and. The new species, T. aori is also conspicuously different from many other forms described from various freshwater host species by Dutton et at (1906), Hoare (1932), Baker (1960), Smirnova (1970) and Abolarin (1970).…”

“…In the recent past quite a few new species of piscine haemoflagellate parasites have been described from various freshwater teleosts of India (Ray Chaudhuri and Misra 1973;Misra et al 1973; Tandon and Joshi 1973 ; Pandey and Pandey 1974 ;Mandal 1975Mandal , 1977Mandal , 1978Mandal , 1979 and Joshi 1976and Joshi , 1978, besides the earlier reports (Lingard 1904, Demello and Valles 1936, Qadri 1955and Hasan and Qasim 1962. In a recent paper Joshi (1979) reported occurrence of trypanosomes in thirteen species of freshwater teleosts of Lucknow, This paper describes three new species of haematozoan parasites from two freshwater teleosts viz.…”

Two new species of trypanosomes,Trypanosoma channai n. sp. fromChanna punctata andTrypanosoma qadrii n. sp. fromClarias batrachus

“…The two species of trypanosomes reported by Lingard (1904) were considered to be dimorphic forms of the same species (Qadri 1955). Lirtgard (1904) unfortunately had neither given any figures or dimensions to make a comparison with the present form.…”

“…Systematic position. T. striati Qadri, 1955 is the only trimorphic form among the opkiocephalid hosts. It has granules in the cytoplasm which are absent in the 36" 8-49 30" 5-44-5 1"'5-2"5 4-5 7"2-9-6 8"15"2 6"4-16 8-13.6 2"4-3"2 2"4-4"8 4"8-7.6 1.6 2"5-4 3"2--4 0"7 0'7 0"7 present form.…”