ECTREPOSEBASTES IMUS. 53 



third, first spine below the first soft ray of the dorsal. Ventral reaching 

 the vent. Caudal about two thirds as long as the head, truncate. 



Pyloric appendages three. Air bladder large. This species has but 

 twenty-four vertebrae ; the nearest of the known species of Sebastes 

 have twenty-six. On the largest specimens there are streamers on scales 

 and spines ; on the smaller ones the filaments are hardly noticeable, 

 if present. 



Apparently rose color in life, brownish red in alcohol, flecked with 

 brown 'below the eye, on the side of the head, along the lateral line, at 

 the base of the dorsal, and on the dorsal and the caudal. A darker area 

 on the parietal region sometimes has a light centre. Some have three 

 larger blotches of brown below the spinous dorsal and two more below 

 the soft dorsal above the lateral line. Very small individuals are similar 

 to the larger ones in color, but the bunches of teeth are less prominent. 



ECTREPOSEBASTES gen. n. 

 Body much compressed, short, deep, caudal peduncle small. Head 

 massive, entirely covered with scales ; snout broad, blunt, lower jaw longer. 

 Cephalic spines moderate, opercle with two. Mouth large, maxillary deep, 

 with a longitudinal keel in the middle. Teeth small, in villiform bands 

 on jaws, vomer, and palatines. PseudobranchiEe well developed, a pre- 

 scapular gland; seven branchiostegal rays. Scales small, thin, cycloid, 

 covering snout, jaws, and chin. Lateral line wide, shallow ; scales much 

 differentiated. Dorsals continuous, with eleven spines. Anal short, with 

 three spines. Pectoral deep, pointed. Caudal not forked. Stomach 

 siphonal; intestine small, short; pyloric creca few. Twenty-four vertebra?. 



Ectreposebastes imus sp. n. 

 Plate VIII. ; Plate IX. ; Plate LXXI. fig. 1, Lat. Syst. 

 Br. r. 7; D. XI, 10; A. Ill, 6 (7); V. I, 5 ; P. 10; LI. scales 60 ca., 

 pores 27 ca. ; Vert. 24. Shorter and deeper in form than most of the 



