Biomedical subjects
Publications and source records attributed to E S Herald.
Hepatic trematodiasis caused by Cyclorchis campula was diagnosed in a juvenile Ganges River dolphin that had been in captivity at an aquarium for approximately 1 year. Histopathologic findings were severe chronic suppurative cholangitis, hyperplasia of the bile duct epithelium, and periductal fibrosis associated with fluke infection of the large bile ducts.
The blind river dolphin (Platanista gangetica), first written about by Pliny the Elder in A.D. 72, was found (10 November 1968) to be the first known side-swimming cetacean. The rudimentary eye lacks the lens, but anatomical evidence suggests that the eye may serve as a light sensor. The underwater sound emissions of this species, although similar to those of the Amazon River dolphin (Inia geoffrensis), appear to be produced constantly.