Antique Chinese bronze

Hello, I inherited this bronze from my late uncle who was an English tutor in China for many years. I have no information on this unusual bronze which I think depicts Chinese alligators. It is marked on the base but due to my complete lack of knowladge on Chinese antiques and markings, I am struggling to get any information from them. Any information at all would be very much appreciated! It measures approximately 6 inches. 

Thanks