NotcH on the British Species of Zeugopterus. 3G7 



Scales on the left side strongly spinous, those on the right 

 smooth or nearly so ; scales only imperfectly developed on 

 the under side of the dorsal and anal ; filaments or papilke 

 not evident on the coloured side. 



Distribution. — From tlie shores of Norway to the northern 

 shores of France. 



This species appears to be of frequent occurrence on the 

 East Coast of Great Britain and in the English Channel. It 

 also extends to the West Coast and the eastern shores of 

 Ireland. I have not met with it in the Clyde estuary, but Mr 

 Anderson Smith has recorded its occurrence in Loch Creran. 



My largest specimen measures 8^ inches in length, and 

 several others have come into my hands measuring over 

 7 inches. 



2. Z. PAPILLOSUS, n. sp. (PI. XV.) 



Finformula.—I>, 94, 95 ; A, 68, 69 ; P, 12; V, 6 ; C, 16. 



' The dorsal fin commences at the anterior margin of the 

 maxillae ; none of the rays are produced into fleshy filaments." 

 The accessory portions of the dorsal and anal appear to 

 consist of three much branched rays. The inter-orbital septum 

 is very narrow, and is not raised, the eyes nearly touching 

 one another. The left eye is not so much in advance of the 

 right as in the other two species, but young specimens of 

 Z. lojmnaculatus have the eyes placed nearly vertically one 

 above the other, while in some of the larger ones the left eye 

 is half its diameter in front of the right. This character 

 may, therefore, be of little specific value. The anterior 

 dorsal margin of the body is more arched than the ventral, 

 so that a continuation of the posterior straight portion of the 

 lateral line would pass ahove the inter-orbital ridge. 



The left pectoral is considerably longer than the right ; 

 each usually contains twelve rays, but the first ray in the 

 left is shorter than the others. 



Scales on the left side spinous, those on the right smooth 

 and small. The scales apparently do not extend to the 

 vertical fins on the right side. The skin on the coloured side 

 is densely papillose, this feature being particularly well 

 piarked on the head and anterior portion of the trunk. 



