SALMO. — PHllACTOLiEMIDjE. 



167 



12 vertically oval, large, blackish spots (parr-marks) on each side in the 

 young, more or less distinct traces of these persisting in the adult ; small 

 black and red spots on the back and sides, sometimes encircled with 

 whitish or bluish ; a large round black spot on the operculum ; dorsal 



Fig. 132. 



Salmo trutta, var. meter ostigma. 

 Type, after A. Dume'ril (Eev. Mag. Zool. 1858). f . 



spotted with black; dorsal and anal with a dark and light anterior 

 margin. 



Total length 290 millim. 



Hill-stream of Algeria (Kabylia) and Morocco; Sicily, Sardinia, Asia 

 Minor, and Northern Persia. — Type in Paris Museum. 



1-3. Hgr. Algeria. Dr. Scliimper (P.). 



4—5. Ad. & yg. Near Tangier. 



6-14. Ad. & hgr. Martun R., near Tetuan. C. A. Payton, Esq. (P.). 



A second species, Salmo irideus, Gibb., from the western parts of 

 North America, has been introduced in South and East Africa. 



Fam. 8. PHRACTOL^MID^. 



Mouth very protractile, bordered by the very slender prsemaxillaries, 

 maxillaries, and dentaries; supraoccipital in contact with the frontals, 

 widely separating the small parietals ; operculum and suboperculum well 

 developed ; prseoperculum small ; interoperculum enormous, covering 

 the gular region and overlapping its fellow; symplectic absent. No 

 pharyngeal teeth. Eibs stout, sessile, nearly completely encircling the 

 body ; slender epineurals, no epipleurals. Pectoral fin inserted low 

 down. No postclavicle. 

 A single genus. 



