NO. 3582 GENUS ENTOMACRODUS — SPRINGER 33 



absent, but 1 arm of such a mark may be present in Brazillian speci- 

 mens '.) 



9a. Darkest and usually largest marking on body a subovate to subquadrate 

 blotch on side below lateral line and just posterior and dorsal to level of 



pectoral axil 10 



9b. Darkest and largest markings on body posterior to region specified in 9a, 

 usually in form of paired vertical bands or paired midlateral blotches, 

 several of which are of similar intensity ; occasional specimens with body 

 almost uniformly pale or with diffuse dusky markings 11 



10a. Gill-rakers 15-23 (modally 18 or 19); underside of head with alternating 

 dark stripes and pale interspaces extending posteromedially from lower 

 lip; pectoral base with 2 slender elongate dark markings, 1 on base of 

 pectoral rays and 1 on anterior fleshy pectoral base, separated by a pale 

 interspace; upper lip with 7-9 distinct dark stripes, sometimes restricted 

 to ventral half of lip; stripes narrower than pale interspaces; terminal 

 lateral line pores below segmented dorsal fin rays 4-7; supraorbital cirrus 

 length 2.2-4.7 percent SL (usually less than 4.4 percent), about equal in 

 similar size males and females; predorsal commissural pores usually 

 fewer (table 55) than in 10b . . textilis (Ascension and St. Helena) 



10b. Gill-rakers 13-18 (modally 14-16); underside of head unmarked, diffusely 

 dusky, or with alternating pale stripes and dusky interspaces extending 

 posteromedially from lower lip; some specimens from New Britain with 

 slight indications of dark stripes; pectoral base uniformly or irregularly 

 dusky, without slender elongate dark markings separated by a pale 

 interspace (except 1 specimen from New Britain) ; upper lip usually 

 diffusely dusky, infrequently with about 9 irregular faint dusky bands 

 (never very distinct) mostly restricted to ventral half of lip; terminal 

 lateral line pores in area below and between dorsal fin spine 8 and dorsal 

 ray 5 (usually anterior to dorsal ray 3) ; supraorbital cirrus length 2.5-7.8 

 percent SL (usually less than 5 percent in females and more than 5 percent 

 in males) ; predorsal commissural pores usually more (table 65) than in 

 10a caudofasciatus (Indian and Pacific Oceans) 



Ua. Preopercular series of pores with pairs or multiples of pores at 3 or more 

 positions (rarely at only 3 positions) 12 



lib. Preopercular series of pores with simple pores at all positions, or less than 

 3 positions with paired pores (except E. chiostidus with 0-22 percent, 

 average 8 percent, of specimens, depending on population, with 3 or 4 

 positions with paired pores; only 2 specimens of over 500 with 5 posi- 

 tions paired) , positions never with multiples of pores 13 



r2a. Head with 2 conspicuous dark, more or less vertical, stripes behind eacii 

 eye; upper lip variably pale and dusky. . corneliae (Marquesas Islands) 



12b. Head without conspicuous dark markings; upper lip with 7 pale stripes 

 alternating with broader dusky bands (occasionally median and one 

 lateral stripe on each side Y- or ( ) -shaped). 



sealei (western Pacific, not Marquesas) 



13a. Segmented dorsal fin rays usually 16 or 17; segmented anal fin rays usually 

 17 or 18; gill-rakers commonly 20-24; predorsal commissural pores 

 usually fewer at any given size (compare data in table 52 with data in 

 tables 49, 61, 65); vertebrae usually 35 or 36. 



vomerinus (Brazil and Fernando Noronja) 



13b. Segmented dorsal fin rays usually 13-15; segmented anal fin rays usually 

 15 or 16; gill-rakers usually 13-19 (rarely 20 or 21) ; predorsal commissural 



