9. CHCEROPS. 93 



Acantholabrus exoletus, Cuv. 8f Veil. xiii. p. 247 ; Yuri'. Brit. Fiah. 

 edit. 2. i. p. 341, edit. 3. i. p. 518. 



microstoma, Cuv. Sf Val. xiii. p. 250. 



J) i8-2£_(20) ^5 L,iat. 33-35. 



t) 7 



The height of the body is two-sevenths of the total length. Light 

 reddish-brown ; no black spot behind the orbit. 



Coasts of northern Europe to the coasts of Greenland. 



a. Stuffed. Cawsand. Presented by Lieut. H. F. Spence, R.N. 

 h-c. Young. From the Mus. Leach. 



2. Centrolabrus trutta. 



Crenilabrus tnitta, Lowe, Proc. Zool. Soc. i. 1833, p. 143. 

 Acantholabrus viridis, pt., Cuv. Sf Val. xiii. p. 252. 



viridis, Valcnc. in Webb Sf BeHhel. lies Canar. Poiss. p. 64. pi. 17. 



fig. 14. 

 ? Acantholabrus romerus, Valenc. I. c 



D. 'f A. }. L. lat. 34. L. transv. ff . 



The height of the body is two-sevenths of the total length. Back 

 with interrupted brown cross-bars ; a dark spot behind the orbit, as in 

 Crenilabrus melops. Sometimes a spot on the root of the caudal fin. 



Madeira. Canary Islands. 



a, h, c. Adult and half-gro^\Ti. Madeira. Presented by J. Y. Johnson, 

 Esq. 



3. Centrolabrus romeritus. 



Acantholabrus viridis, pt., Cuv. 8f Val. xiii. p. 252. 



romeritus, Valenc. in Webb ^ Bcrthel. lies Canar. Poiss. p. 64. 



D-f- A.f . 



The height of the body is two-sevenths of the total length. 

 Brownish -green, sometimes with indistinct darker longitudinal 

 streaks. 



Canary Islands. 



Probably identical with C. trutta. 



Second Group. CHCEROPINA. 



9. CHCEROPS. 



Cossyphus, sp., Cuv. 8f Val., Bleek. 



Choerops, Piipj}. Verz. Mus. Senckenb. Fische, p. 20 ; Bleek. Proc. Zool. 



Soc. 1861, p. 416. 

 Ilypsigenys, Giinth. Ami. 8f Mag. Nat. Hist. 1801, viii. p. 383. 



Body compressed, oblong, covered with rather large scales ; snout 

 obtuse ; cheeks high, with verj' small scales which are generally not 

 imbricate ; operculum scaly. Each jaw anteriorly with four strong 



