236 EXPEDITION OF THE "ALBATROSS," 1899-1900. 



A small but distinct antorbital photopliore between the orbit and the 

 lower edge of nostril. Three small photophores on the cheek near the 

 posterior border of the orbit, and apparently a fourth immediately above 

 the maxillary near its end. Apparently a small humeral spot present above 

 anterior part of opercle. Upper pectoral spot on the lateral line, the second 

 in front of pectoral fin just above the middle of the base, the third below 

 and a little behind the second, the three about in a straight line. Thoracics 

 5, the fourth pair elevated, vertically over middle of interspace between 

 third and fifth pairs ; photophores of first pair separated from second pair 

 by an interspace longer than distance from second to fifth pairs ; third pair 

 about equidistant from second and fifth pairs; photophores of first pair very 

 close together, those of second pair but little farther apart, those of third 

 pair widely distant (three times the width separating first pair), photophores 

 of fifth pair apparently larger than the others, nearer together than those of 

 third pair, farther apart than those of second pair. This condition is very 

 different from that in L. guentheri, where the first, second, third, and fifth 

 pairs form two regularly diverging lines. Supra-ventrals on the lateral line. 

 Ventral photophores 4, the anterior pair opposite middle ventral rays and a 

 little removed from them ; second pair elevated, above and behind the first 

 pair, a little lower than fourth thoracics ; thii-d pair but slightly neai'er fourth 

 than first pair, the photophores of third pair a little farther apart than those 

 of fourth j)air, the latter at sides of vent. Supra-anals slightly angulated, 

 the upper distinctly above lateral line, vertically above second anal ray, the 

 second above the first anal ray, the third above the fourth ventral pair ; 

 second supra-anal a trifle nearer the lower than the upper one of the series ; 

 line joining middle and lower supra-anals passing through the third vcntrals. 

 Antero-anals 7, forming a slight w^-shaped curve, the first a little 

 nearer anal base than the following, the sixth slightly diverging, the 

 seventh more so, the interspaces equal or nearly so ; the curve of the last 

 antero-anids crossing lateral line well behind the postero-lateral. Postero- 

 lateral above the lateral line. Postero-anals 4, the last well separated from 

 first precaudal. Precaudals 3 or 4, the two lower well-developed, horizon- 

 tally placed, approximated at base of rudimentary rays of caudal, the upper 

 above lateral line, the third intermediate in position, sometimes faint or absent. 



