first record of the numbray, narke dipterygia (bloch & schneider, 1801) from iran (elasmobranchii: narkidae)

as a result of our survey in february 2011, a single female specimen of n. dipterygia was found in the tidal zone of chabahar bay and it was caught with a small deep net. the fish was transferred in a bucket to the fisheries laboratory of chabahar maritime university and kept in a salt water aquarium for further examinations. we witnessed the birth of 6 juveniles after 3 days. the female and her juveniles were kept in the aquarium for about six months and fed with live food. after that, they died and were fixed in 96% ethanol. the female fish total length was 172.02mm and weighed 18.21g. the fry total length ranged from 49.90-56.37mm and weighed 1.14-2.1.65g. the length-weight, length-disk length, disk length-electric organ length showed high correlations (r 2 >0.85), but the relationship between electric organ width and fish weight was low (r 2 =0.33). although this species was recorded from the arabian sea and western indian ocean, this is the first record of this species from the iranian waters.