THE DERBIO. 23 



A CA NTHOPTERI. SCOM BRIDGE. 



THE DERBIO. 



Lichia glaucus, Cuv. et VALENC. viii. p. 558, pi. 234. 



Premier glaucus, RONDELET, p. 252. 



Lampuge des Marseillais, BELON, p. 155. 



Scomber glaucus, LINNAEUS. 



Gasterosteus glaucus, FORSTER, Des. An. p. 5. 



Centronotus vel Lichia glaycos, Risso, 2 me Edit. 



Centronotus binotatus, RAFINESQUE. 



Albacore, COUCH, Linn. Tr. xiv. p. 82. JENTNS, Man. p. 366. 



LICHIA. Generic Characters. Form oval, compressed, covered with lea- 

 thery scales, without keel or lateral ridges on the tail ; head small ; teeth 

 minute. Dorsal spines low, isolated, each with an axillary membrane, and, 

 in front of all, a recumbent spine ; two preanal spines ; second dorsal and 

 anal long, similar to one another ; no spurious tins. Seven branchiostegals. 

 A large air-bladder, expanded posteriorly. Five conspicuous cranial ridges, 

 the median one being the longest and highest. 



FOUR species of this genus are described in the Histoire 

 des Poissons, three of them inhabitants of the Mediter- 

 ranean, but together with the fourth, ranging also along 

 the western coast of Africa, some of them as far as the 

 Cape of Good Hope, where the Dutch colonists call 

 them lyre-vish. The species which we have to describe 

 is the one which Rondelet says is known at Mont- 

 pellier, by the name of Derbio, but which is called La 

 liche and La cabrolle by the Proven9als, and La lechia by 



