28 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 9 



Sciaenidae Croakers 



Larimus acclivis Jordan and Bristol 



One from Panama Market, December 24 ,1931. Length 223 mm. 

 One from Guayas River at Guayaquil, Ecuador, July 6, 1934. Length 

 150 mm. Mouth but little oblique. Lower jaw projecting. Second anal 

 spine strong and extending to tip of rays. Color silvery with narrow dark 

 oblique lines on sides above middle of body. 



Bairdiella ensifera (Jordan and Gilbert) 



One from Guayas River at Guayaquil, Ecuador, February 6, 1934. 

 Length 180 mm. Dorsal IX-I, 24; anal II, 8. Sixty-two scales in the 

 lateral line. Strong teeth at angle of preopercle, the lower one directed 

 down. Second anal spine strong, equal in length to distance from ante- 

 rior margin of eye to posterior margin of opercle. Color silvery, a narrow 

 dark line along each row of scales, spinous dorsal and outer half of anal 

 dark. 



Nector chrysoleucus (Giinther) 



One from Panama Market, December 24, 1931. Length 224 mm. 

 One from Mazatlan, Mexico, December 8, 1931. Length 319 mm. One 

 from Guayas River at Guayaquil, Ecuador, February 6, 1934. Length 

 175 mm. Color silvery with the center of the scales yellowish, forming 

 indistinct lines. Dorsal, caudal, and anal dusky; in large specimens the 

 fins are yellowish. 



Zestis oscitans (Jordan and Gilbert) 



One from Panama Market, December 24, 1931. Length 189 mm. 

 Mouth quite oblique. Interorbital space broad and flat. Two spines at 

 angle of preopercle. Pectorals longer than head. Caudal lanceolate. 



Ophioscion typicus Gill 



One from Tenacatita, Mexico, December 10, 1931. Length 157 mm. 

 No barbules. Teeth setiform, with some enlarged teeth in upper jaw. 

 Color silvery, lighter below. Fins grayish. 



JJmbrina galapagorum Steindachner 



One from Post Office Bay, Charles Island, Galapagos, January 2, 

 1932. Length 170 mm. 



Umbrula elongata (Giinther) 



Three from Mazatlan, Mexico, December 7, 1931. Length 122-252 

 mm. One from Acapulco, Mexico, December 15, 1931. Length 157 mm. 



