SALMO.— PHRACTOL^MID^. 167 



12 vertically ova], 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. macrostigmn. 

 Type, after A. Dumeril (Eev. Mag. Zool. 1858). 4. 



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 E., near Tetuan. 0. A. Payton, Esq. (P.). 



A second species, Sahno hideus, Gibb., from the western parts of 

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



Fam. 8. PHRACTOLiEMID^. 



Mouth very protractile, bordered by the very slender prsetnaxillaries, 



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



widely separating the small parietals ; operculum and suboperculum well 



developed ; prgeoperculum small ; interoperculum enormous, covering 



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



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



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



down. No postclavicle. 



A single genus. 



