Tank No. 26. 



53 



Tank No. 26. 



Brightly coloured Fishes. Xyrichthys (fig. 155), of a pink 

 colour. Julis pavo (fig. 156), with peacock-blue fins and Coris 



vulgaris (fig. 157). These are usually in continual movement, 



although they may be buried in the sand in winter. Butterfly- 



blenny (Blennius, fig. 158) with a back-fin like the wing of a 

 butterfly, bearing an eyespot. 



Fig. 155. Xyrkhthys novacula, 1/2 nat. size. p. 113. 



Fig. 156. jftilis pavo, 1/2 nat. size. p. 113. 



Fig. 157. Coris vulgaris, 1/2 nat. size. p. 113. 



