614 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
Head 23 hundredths of total length; snout 6; head and trunk 38; base of dorsal 8. Dorsal with 22 
rays, beginning at the anterior margin of the ring containing the vent, and continued on rings; 
pectorals with 14 rays, caudal with 6; rings 16 + 36, the anal ring enumerated with those of the trunk. 
Snout short, compressed, with a thin low median crest in its proximal two-thirds, the edge of the 
crest minutely serrate; supraorbital rim elevated, shelving outward, continued backward and a little 
downward behind orbit as a wing-like ridge; occiput with a low median crest, which is not continuous, 
with a similar short nuchal ridge; a strong ridge along upper margin of opercle; trunk with 7 ridges — a 
pair of dorsal ridges, a corresponding pair of ventral ridges, a well-defined ridge along middle of each 
lateral face, and a low rounded mid-ventral ridge; the mid- ventral and the lateral ridges cease at anal 
ring, the other 4 continue on tail; all ridges are sharp, the faces between them concave; pectorals and 
caudal very short; a small anal with 5 rays developed immediately behind vent. 
Color in life brick-red, the dorsal face crossed by 13 narrow greenish cross-bars, each narrower 
than one ring; a row of pearly spots along the pair of ventral ridges, one between each 2 plates. 
Family PEGASID£. 
Pegasus papilio, new species. Fig. 239. 
Type, 47 mm. long, from station 4149, near Bird Island, depth 33 to 71 fathoms (captured with 
the tangles) ; type, No. 51549, TJ. S. Nat. Mus. 
Length of head 35 hundredths of total length without caudal; greatest depth 20; greatest width 
at base of pectorals 45; at axil of pectorals 30; distance from vent to base of caudal 41; length of snout 
18; width at middle of snout 3; length of maxillary 5; diameter of eye 8; wddth over middle of eye 12; 
longest pectoral ray 41 ; longest ray of caudal 21 ; distance from front of dorsal and anal to base of 
caudal 33. D. 5; A. 5; P. 11; V. 2; C. 8; tail with 8 rings. 
Snout very long and slender, directed obliquely upward and forward at an angle of about 45° with 
the axis of the body; of approximately equal width throughout, and square in cross-section, each of 
the lengthwise ridges provided with a series of coarse retrorse spines; mouth toothless, very oblique, 
