356 SYNOPSIS. 



Brit. Fish., i. p. 97 ; Jenyns^ Brit. Vert., p. 350 ; Edin. 

 New Phil. Journ.^ April 1831, p, 386. 

 Sp. 31. O. pungitius. Ten-spined Stickleback. Sides with- 

 out plates; dorsal spines nine or ten. Fin-rays, D.ix+ 10 : 

 P. 1 1 : V. 1 + 5 : A. 1 + 9 : C. 12.— Zzwn., Cuv. ^ Vol., iv. 

 p. 506; Perm. Brit. Zool, iii. p. 335, pi. 61; Bon. Brit. 

 Fish., pi. 32; Jenyns' Brit. V&rt.^ p. 350; Yarr. Brit. 

 Fish., i. p. 99. 

 Sp. 32. S. spinachia. Fifteen-spined Stickleback. Dorsal 

 spines fifteen ; body much elongated, lateral line armed 

 with large pointed imbricated scales, which render the 

 posterior half of the body quadrangular, the anterior part 

 pentagonal ; snout very much produced, the under jaw 

 longest ; colour of the upper parts greenish brown, sides 

 yellowish, belly silvery white. Fin-rays, D. xv -f 6 : P. 1 : 

 V.2 : A. 1—7 : C. 12.— Linn., Cuv. ^ Val, iv. p. 509; 

 Yarr. Brit. Fish., i. "p. 101. Spinachia vulgaris, Flem. 

 Brit. An.,ip. 219. 



Obs. This species differs in many respects from the 



other Gasterostei, and has therefore been regarded by 



several authors as a separate subgenus, a rank to which it 



seems fully entitled. 



Fam. III. SciENTD^. Fam. of the Maigres. Preoperculum 



denticulated, operculv/m with spines, body and head entirely 



covered with scales ; mouth slightly protractile; no teeth on the 



vomer or palatines. 



Gen. XIV. Sci^na. Operculum ending in one or more 

 spines ; dorsals two, the second long ; branchiostegous mem- 

 brane with seven rays ; a row of pointed teeth in each jaw ; 

 chin without a barbule. 



Sp. 33. S. aquila. The Maigre. Of a uniform silvery grey, 

 inclining to brown on the back and to white on the belly ; 

 first dorsal, pectorals, and ventrals, red ; first dorsal with 

 the third spine very long. Fin-rays, D. 9 — 1-)-27 : P. 16 : 

 V. l-f5 : A. 1-f 8 : C. 17.— Cuv. ^ Val, t. v. p. 28, 

 pi. 100 ; Jenyns' Brit. Vert, p. 352 ; Yarr. Brit. Fish., 

 i. D. 104. Umbra Rondeletii, Willugh. 



