In the present communication the authors describe the diversity of freshwater fishes in the Bundelkhand region of India. On the basis of available research there are 93 species of fishes reported in Bundelkhand. These fishes comprised of 6 orders and 18 families. Out of six orders Cypriniformes (55%) is the most abundant order in this region followed by Siluriformes (24%), Persiformes (15%), Synbranchiformes (3%), Osteoglossiformes (2%) and Beloniformes (1%). Out of eighteen families the Cyprinidae is the most prevalent among all families. The Result showed 66 fish species found in district Damoh followed by 50 species in Panna, 27 species in Lalitpur, 27 species in Chhatarpur, 21 species in Sagar and 19 species of fishes in Jhansi.

The author in the present work divided the genus Circumonchobothrium of the family Ptychobothriidae into two new subgenera on the basis of vitellaria Viz. ircumonchobothrium (Circumonchobothrium) n. subg. and Circumonchobothrium ( Postovilata) n. subg. The present new subgenus and its type species ircumonchobothrium (Postovilata) betwaensis n. subg., n. sp. is reported first time

Presently ten species of the genus Pseudobatrachus3 are recorded from the intestines of freshwater fishes of Bundelkhand region of India. The author in the present communication describes brief review of the genus along with the key to identification of various species of the genus.

The present investigation deals with the study of cestode host relationship in a fresh water fish, Mastacembelus armatus (Lacepede) in relation to the body temperature of the host. The maximum prevalence, mean intensity and relative density were recorded in the host fish ranging from 26-31°C and lowest at 32- 370C body temperature respectively . The fishes at 20-250C body temperature had no infection of cestode parasites.

The present communication deals with the study of cestode infection in a popular freshwater fish, Mastacembelus armatus in relation to the male and female sex of the host. In this study the author calculated the maximum prevalence, mean intensity and relative density in the males of host fish.