Fakkan — Seventh Reporl on the Fishes of the Irish Atlantic Slope. 125 



Traehyrhynchus Murray!, Giiiither. 



Trachyrlujnchv^ Mwrrayi, Giinther (1887), Goode and Beau (1895), 

 Gollett (1905). 



Fig. 11. — Trnchijrhynchus Murrayi, 



Description. — rorni of the head and body as in T. traehyrhynchus. The 

 head appears to be slightly larger in relation to the body, though the 

 proportions, or measurement, are approximately the same. 



Body covered with thin scales, with three or fewer spines near the hinder 

 margin. In the two specimens examined the scales were wanting over 

 almost the whole body ; the few which remained had one spine or none, the 

 scales of the lateral line being without spines. A dorsal ridge of thickened 

 scales, saddle-shaped, and with a strong entire median tooth directed 

 backwards, commences at the head, and is continued backwards on either 

 side of the dorsal fin for an imcertain distance. A similar ridge, with more 

 depressed spines, runs along either side of the anal fin, and is represented 

 in front of the anal fin and below the pectorals, by a scattered band of 

 smaller spines, more persistent than the general scaling, and remaining when 

 all the other scales have been rubbed off. The bands on each side meet in 

 front of the ventrals, and enclose a scaleless area in front of the anus. 



The head, as to its sides and top, is covered with small, elongate scutes, 



arranged to form longitudinal ridges, each scute bearing a row of spinules. 



A well-marked ridge, from the snout to the operculum, separates the upper 



and lower surfaces of the head, and a much smaller ridge runs above the eye 



and nostril. The under-surface of the head is covered with very small scutes, 



not forming ridges, each scute, in specimens of 23-25 cms., with from two to 



four spinules. Profile of the head somewhat higher above the nostrils than 



in 1\ trachTjrhynchus. The occipital fossa is comparatively well marked, 



the scales which surround it being joined to form a definite enclosing ridge. 



Mouth inferior, horseshoe-shaped, reaching back a short distance behind the 



level of the eye. Barbel very small. 



Fin rays : 1st Dorsal, I + 10. Pectoral, 22-23. Ventral, 7. 



[2? 2] 



