420 Mr. W. Thompson on the Irish Coregoni. 



This individual — 4 inches 11 lines in length — is larger than any 

 of this species recorded in the ' Manual of British Vertebrate Ani- 

 mals.' Excepting that the ascending margin of the pre-opercle is 

 not " very oblique," it agrees with the specific characters there at- 

 tributed to that species, and generally with the detailed description 

 of dimensions. So far as the brief description of colours in the 

 ' Manual ' enables a judgement to be formed, there is a similarity 

 between them. The specimen before me (preserved in spirits) pre- 

 sents considerable variety of colours. Two-thirds of the upper por- 

 tion of the sides and entire body, from origin of anal to base of cau- 

 dal fin, of a pale but rich brownish-red, with faint indications of se- 

 veral transverse dusky bands ; remainder of anterior portion to ven- 

 tral profile, yellowish-grey. Head variously coloured in stripes, &c, 

 somewhat in the manner of Labrus variegatus, Gmel., and others of 

 the Labridae ; iris bright red, lips orange ; dorsal fin pale, varied 

 with red and dusky tints ; of this latter colour from the first to be- 

 tween the third and fourth rays : a black spot, partly on the body 

 and partly on the base of the two last rays terminating this fin : 

 pectorals reddish, with a black band at the outer base of the rays 

 (similar to that in the variety of Crenilabrus Tinea called C. Cornu- 

 biensis) : ventrals pale, with reddish markings : anal fin with faint 

 dusky and reddish markings alternating : caudal fin pale dusky, ir- 

 regularly tinged with a reddish colour. 



D. 19 + 11 (last double); A. 3 + 9 ; P. 14 ; V. 1 + 5 ; C. 13 or 

 14 conspicuous (21 altogether) = Br. 5. 



This individual has the ascending line or the pre-opercle less ob- 

 lique than the smaller specimens ; the teeth, instead of the uniform- 

 ity of arrangement described in C. multidentatus , increasing some- 

 what gradually in size towards the centre, 21 in the lower, and a 

 similar number in the outer row of upper jaw ; a dark brown mark- 

 ing appears down the centre of many of them ; those of the other 

 individuals are uniformly transparent. Scales three or four fewer 

 in number on the lateral line in the large specimen than in the others, 

 and the tubular projections on those throughout it less developed ; 

 in it likewise the concentric stria of the scales are less strongly 

 marked, and the lineated appearance (produced by the stria of each 

 scale being more deeply cut along the centre than elsewhere) less 

 apparent than in the' others. The colour already described is very 

 different from that of the smaller specimens. This individual, as 

 well as those described as C. multidentatus, was obtained at Youghal. 



