66 RAMSAY H. TRAQUAIR’S 
APPENDIX. 
The two following species from Berwickshire were included in this Report 
by an oversight, as the specimens were not derived from the district under 
consideration. In order, however, not to delay their publication, I have 
transferred them from the body of the Report to the end, in the form of an 
“ Appendix.” 
Holurus ischypterus, sp. nov. Traquair. 
Pl. Tks figs) 16. 
Description.—Length of the only specimen which has occurred, 2} inches ; 
but if we allow for some deficiency both at the snout in front, and at the 
termination of the tail behind, the original length would probably be at least 
24 inches. The other measurements are as follows :— 
Greatest depth of body, : - a inch. 
Length from the front to cofuinenberoeut of ihe somah fins! Es ys 
Do. do. ania; 1 oy 
Do. do. caudaly,, 1205p 
The shape of the fish is therefore somewhat striking; being elegantly 
fusiform, with a large and apparently non-bifurcated caudal fin attached. 
The head is badly preserved, yet enough is seen to indicate its decidedly 
paleeoniscoid structure. The suspensorium is oblique, the gape wide; the 
operculum is ornamented with a few comparatively coarse oblique ridges ; and 
similar ridges, though somewhat more closely arranged, occur on the post- 
temporal and supraclavicular bones. 
Although the outline of the fish is perfectly shown, only two patches of 
scales are preserved on the side of the body; one of these is situated on the 
anterior part of the flank immediately behind the head; the other is towards 
the caudal region, below the dorsal fin, and extends on to the prolongation of 
the body in the upper part of the caudal fin. As shown in these patches, the 
body scales are small, rhomboidal, and marked with two to four very prominent 
ridges, running parallel with their upper and lower margins, these ridges 
becoming less marked on the caudal region, where the scales are very minute. 
In front of the dorsal fin are seen some very strong pointed median scales, 
which become indistinct when traced forward ; nevertheless it seems probable 
