DISCUSSION OF SPECIES AND THEIR DISTRIBUTION. 451 



The scales on tlie eyed side are regularly cycloid with the nucleus some distance from 

 the iiosterior margin and with numerous radiating striie. The gill rakers are quite charac- 

 teristic. 



CYCLOPSETTA FIMBRIATA, Goode and Bean. (Figure 3G8.) 



HemirhomhiisJimhriatuK, Goode and Bean, Proc. U. S. Nat. Mu8., viii, 1885, 591. 



Body elliptical; its height (102 millimeters) nearly half the body length. 



Scales cycloid, about 70 in the longitudinal series, 25 or 26 in the vertical series above 



the lateral line, 31 below. The lateral line is slightly curved over the pectoral, the length 



of the arc of the curve contained 3,^ times in its straight portion. Vertical fins not scaly. 



Length of head ((il millimeters) about 3J times in standard length. Length of snout 



(Hi millimeters) 5.^ times in that of head. 



Mouth very large, with upper jaw strongly curved, lower jaw included. The length of 

 the maxillary (30 millimeters) equals half the lengtli of the head. The lower jaw extends 

 behind the vertical through the posterior margin of the eyes; its length (36 millimeters, 

 equal to that of postorbital part of the head, and contained 6 times in the total length) 

 Edge of mandible and margin of sul)operculum provided witli a pointed flap of thin integu- 

 mentary tissue. Gill rakers very short, tubercular; about t) on the anterior arch below the 

 angle. The upper eye is placed at a distance from the dorsal i)roflle equal to half its own 

 diameter, which is a little more tiian onefifth the length of the head, and is equal to that 

 of its mate. Eyes in the same vertical and separated by an interspace equal to oue-foui'th 

 the orbital diameter. luterorbital ridge low. 



Nostrils on the line of the interorbital ridge; the anterior is equidistant from the tip 

 of the snout and the margin of the upper eye; it is in a very inconspicuous tube, provided 

 with a slender filament about one-third the length of the snout. The posterior nostril is 

 separated from the anterior one by a space equal to onelifth the length of the snout. 



Teeth uniserial in both jaws, some of the anterior ones in the upper jaw being much 

 larger than those following, while those in the lower jaw are still larger than these. Some 

 of the teeth in each jaw are depressiblc. 



The dorsal tin begins on the snout, in advance of the nostrils; the first ray longer than 

 the second. The longest rays are behind the middle of tlie fin, tlieir length (26 millimeters) 

 one-fourth the height of the body. Eighty rays compose the fin. 



The anal tin begins nn<ler the axil of the pectoral. Its longest rays behind its middle, 

 their length (30 millimeters) greater than that of longest dorsal rays. It contains 60-61 rays. 

 Caudal with middle rays produced, the length of the median rays (15 millimeters) 

 contained 4i in total length. 



The greatest length of the pectorals (39 millimeters) is contained 5i times in total 

 length. 



The ventral of the colored side is on the ridge of the abdomen, on a line with its mate, 

 which is slightly,removed from the median line. Its distance from snout (56 millimeters) a 

 little more than one-quarter the length of the body. Its length (23 millimeters) equal to 

 half the length of median caudal rays. The ventral of the blind side is continued by 

 a tliin membrane to the vent, which is slia;htly distant from the edge of the abdomen, and 

 behind tlie origin of the anal. 



Color, grayish-brown; the dorsal and anal fins each with two roundish dark blotches 

 niion their posterior halves, which are slightly larger than the eye. A similar dark blotch 

 upon the middle of the caudal, sometimes with smaller blotches irregularly placed near its 

 outer margin. 



Pectoral, with a very narrow dark band near its base; the whole of its outer half is 

 marked by a dark blotch, reticulated and mottled with lighter; the intervening portion is 

 pearly-white, with duik specks upon the rays. Blind side cream colored. 

 D. 80; A. 60-61; P. 10; V. 6; C. 16. 



The type specimen (Cat. No. 37330, U. S. N. M., 213 millimeters long to origin of mid- 

 dle caudal lays), was taken by the Albatross from station 2403, in 28° 42' 30" N. lat., 85° 



