EXPLANATION OF PLATE XV. 



Fig. L — Dasyatis hrevicaudatvs, Hutton. A specimen 1080 

 mm. wide, from off Babel Island, Bass Strait. 



Fig. 2. — Amia nigripes, Ogilby. A specimen 69 mm. long, 

 from twenty-five miles south-east of Double Island 

 Point, Queensland. 



