370 U.S. NATIONAL MUSEUM BULLETIN 202 Vol. 2 



incomplete, ending opposite rear third of pectoral fin, much above 

 midlengthwise axis; vertical line through dorsal origin passes through 

 pectoral base and a little behind pelvic bases; dorsal fin with a deep 

 notch over last dorsal spine; a membrane attaching last dorsal ray 

 with upper edge of caudal peduncle but not with base of caudal fin; 

 anal origin under base of second from last dorsal spine; last anal ray 

 without membrane posteriorly; pectoral fins not reaching to anus, 

 anal spines small, partly embedded in females, and first anal rays of 

 adult males not swollen distally; posterior canine present on each 

 side of lower jaw; teeth fine, very numerous, movable, of equal size 

 in both jaws; distal margin of caudal fin rounded, cephahc crest of 

 adult males well developed, as high as eye diameter, that of mature 

 adult females very small but present. 



Color in alcohol. — Background coloration whitish or light tan, with 

 about 6 vertical light brown double bars; these more or less joined in 

 dorsal half of body; snout with a pair of light brown streaks crossing 

 lip and ending as a small spot at tip of chin; another light brown 

 streak below eye across lips ending on under side of chin but not join- 

 ing its fellow from opposite side; two other light brown streaks, one 

 from under rear of eye across corner of mouth and another from be- 

 hind eye across cheek, both ending on underside of head but not 

 joining their fellow from other side; the last light brown streak ex- 

 tends from opercle across middle of branchiostegal rays thence con- 

 tinues along isthmus just behind edge of gill membranes; base of pec- 

 toral with a small brownish spot; dorsal with fight brown streaks, 

 anal plain whitish to dusky distally; midbasal part of caudal fin with 

 a small brown spot with pale center. 



tz 



/? 





4A^ i 



Figure 126. — Praealticus amhoinensis Htteratus, new subspecies, holotype, USNM 124116, 

 from Guam. Drawn by Dorothea B. Schultz. 



PRAEALTICUS AMBOINENSIS LITTERATUS, new subspecies 



Figure 126 



Holotype.— \]^^M 124116, Guam, Ypao Pomt, August 9, 1945, 

 D. H. Johnson, standard length 41 mm., adult male. 



