FISHES. 103 
Fam. TRYGONIDZ. 
26. Trygon pastinaca (Z.). Sting Ray. 
Resident, occasionally caught off Whitby and in Bridlington 
Bay. 
Fam. MYLIOBATIDZ. 
27. Myliobatis aquila (Z.). Eagle Ray. 
Visitant, of extremely rare occurrence. Was first recorded 
as British by Pennant, who states that one was caught off 
Scarborough, and the tail brought to Mr. Travis, of that 
place, by the fisherman who caught it. 
28. Dicerobatis giornz (Zacéf.). Horned Ray. Ox Ray. 
Sub-order HOLOCEPHALA. 
Fam. CHIMARIDZ. 
29. Chimera monstrosa Z. Northern Chimera. 
Occasionally taken in the North Sea by the Grimsby smacks, 
and in all probability occurs within the latitude of the 
Yorkshire coast. 
Order 22 GANOIDEI. 
Sub-order CHONDROSTEIT. 
Fam. ACIPENSERID&. 
30. Acipenser sturio Z. Sturgeon. 
Not uncommon off the coast, also at the mouth of the Tees, 
in the Humber, and in the tidal reaches of its tributary 
rivers, which it ascends about June, its upward progress 
being, however, barred by the first dam or weir. Formerly 
—before the erection of these obstructions—it has been 
known to ascend the Ouse as far as Boroughbridge, and 
the Wharfe to Boston Spa and Arthington. Near Bridling- 
ton, it has been several times caught in the stake-nets. 
