FAMILY LABRIDAE — SCHTTLTZ 189 



reaches to opposite ninth lateral line scale; pelvics reach halfway to 

 anus; caudal fin forked. 



Color in alcohol. — Head dark brown, body Hght brown; operculum 

 crossed with 3 or 4 narrow whitish streaks; base of caudal fin dark 

 brownish; dark brown blotch in upper half of pectoral fin, dorsal edge 

 of pectoral distally and ventrally hyaline ; dorsal edge of pectoral base 

 with a black spot; a brown bar from corner of mouth, meeting its 

 fellow ventrally on underside of jaw, area in front and behind whitish, 

 tip of lower jaw brown; middle of dorsal and anal fins with a brown 

 streak; distally these fins are whitish. 



THALASSOMA UMBROSTYGMA (RttppeU) 



Plate 99,E 



Julis urnbrostygma Ruppell, Neue Wirbelthiere zu der Fauna von Abysinnien 

 gehorig, Fische, p. 11, pi. 3, fig. 2, 1835 (type locality, Mohila and Djedda, 

 Red Sea). 



Julis pundatus Seale, Occ. Papers Bishop Museum, vol. 1, No. 3, p. 91, 1901 

 (type locality, Guam). 



SPECIMENS STUDIED 



Bikini Atoll: 13 stations, 65 specimens, 16 to 183 mm. in standard length. 



Rongerik Atoll: 3 stations, 12 specimens, 21 to 119 mm. 



Eniwetok Atoll: 3 stations, 6 specimens, 48 to 126 mm. 



Rongelap Atoll: 2 stations, 16 specimens, 14 to 145 mm. 



Kwajalein Atoll: 1 station, 7 specimens, 36 to 149 mm. 



Guam: 3 lots, 19 specimens, 14 to 43 mm. 



Description. — Certain counts are recorded in table 101. 



Head 2.8 to 3.3; greatest depth 3.2 to 3.4; longest pectoral ray 4.6 to 

 5.2; snout tip to anus 1.7 to 1.9; snout to dorsal origin 2.7 to 2.9; all 

 in standard length. Snout 2.9 to 3.1 ; eye 3.5 to 7.5; postorbital length 

 of head 1.9; interorbital space 4.1 to 4.6; longest pectoral ray 1.5 to 

 1.9; least depth of body 2.1 to 2.2; all in length of head. Distance 

 between anterior and posterior nasal openings 3.0 to 7.5 in snout. 

 Eye 0.8 to 2.0 in interorbital space. 



Dorsal profile convex; pectoral fin reaches to opposite ninth or 

 tenth lateral line scale; pelvics reach about halfway to anus, no rays 

 elongate; outer caudal fin rays not elongate; distal margin of caudal 

 fin a Httle rounded in young, truncate in half-grown, and becoming 

 double concave wdth middle a Httle convex in adults. 



Color in alcohol. — Background coloration light grayish or yellowish 

 white; dorsal surface and upper sides of head with blackish spots or 

 dashes more or less forming a loosely connected network; sides with 

 3 lengthwise rows of 6 dark W-shaped blotches, middle row present 

 in specimens as short as 14 mm., whereas dorsally and ventrally 

 located rows have not developed at that size; W-shaped dark blotches 

 in median row develop at 20 to 25 mm., whereas in smaller specimens 



