42. SCOPELID^E MYCTOPHUM. 281 



461. S. Bmcaoceps (Ayres) Gill. 



Olive-brown above, grayish below, with some golden lustre on sides; 

 back with slaty reticulations; head not vermiculated above; lower side 

 of head and ventral fins yellow. Eye 5 in head. Scales arranged in 

 regular, very oblique rows; those on the opercles in about 8, on the 

 cheeks in about 9 rows; 40-50 scales along the back before the dor- 

 sal, 6 in a vertical row between adipose fin and lateral line, and 10 in 

 an oblique row. Pectoral fin longer, reaching base of veutrals, its 

 length about equal to that of the premaxillary. Ventral fin not so long 

 as the space between snout and upper edge of gill-opening. Interor- 

 bital space little concave, nearly smooth. Head 4; depth 8. D. 11; 

 A. 12; B. 14; scales 13-G6-16 (the vertical series counted obliquely). 

 L. 12 inches. San Francisco to Mexico; rather common in summer. 



(Saurus lucioceps Ayres, Proc. Cal. Acad. Nat. Sci. 1855, 66: Saurus lucioceps Giiuther, 

 v, 397.) 



**Body rather stout; suout short, obtuse, shorter than eye; lower jaw the longer. 

 ( Trachinoceplialus Gill.*) 



465. . myops (Forster) Jor. & Gilb. 



Grayish, mottled or barred; scapula black. Body moderately elon- 

 gate, tapering backwards.. Mouth very large, maxillary more than half 

 length of head; snout shorter than eye; lower jaw somewhat projecting; 

 top of head corrugated; interorbital space concave. Anal tin compara- 

 tively long. Ventral fins very long, reaching about to the vent. Head 

 3-| in length; depth about 5. D. 11; A. 14; scales 4-5S-7. Tropical 

 seas; not common on our South Atlantic coast. 



(Salmo myops Forster, MSS. Bloch & Schneider, 421: Saurus myops Giiuther, v, 398.) 



131. MYCTOPHUItt: Rafinesque. 

 (Scopelus Cuvier, 1817.) 



(Rafinesque, Indice d'lttiologia Siciliaua, 1810: type Myciopluim punctatum Eaf.) 



Body oblong, compressed, covered with large cycloid scales, those of 

 the lateral line sometimes enlarged. A series of round luminous spots 

 along the lower side of the head and body. Head compressed. Mouth 

 large, the jaws usually about equal; premaxillary very long, slender; 

 maxillary well developed. Teeth in villiform bands on jaws, palatines, 

 pterygoids, and tongue. Eye large. Gill-rakers very long and slender. 

 Branchiostegals 8-10. Pseudobranchise large. Air-bladder small. Py- 



*Gill, Cat. Fish. East Coast N. Amer. 1861, 53, no description: type Xalmo 

 Forster. (r/jo^zKoS, Trachiuus; netpct,\7f, head.) 



