414 PROCEEDINGS OF THE NATIONAL MUSEUM vol.88 



advance of origin of anal fin, much closer to origin of anal than 

 insertion of pel vies, gill membranes extending far forward not joined 

 to isthmus ; branchiostegals 6 ; caudal fin slightly emarginate. 



Measurements. — The measurements outside the parentheses are in 

 millimeters, and those in the parentheses are expressed in hundredths 

 of the standard length. Distance from tip of snout to base of mid- 

 caudal fin rays 74; greatest depth of body 19 (25.7) ; least depth of 

 caudal peduncle 10 (13.5) ; length from base of last anal ray to base 

 of midcaudal fin rays 21 (28.4) ; head 29 (39.2) diameter of eye 9 

 (12.2) snout 6.9 (9.3) ; bony interorbital space 3.7 (5.0) ; length of 

 longest pectoral fin ray 14.7 (19.9) ; length of second (longest) anal 

 spine 10.4 (14.1) ; length of longest dorsal spine or second spine 13 

 (17.5) ; tip of snout to origin of spiny dorsal fin 32.5 (44.0) ; tip of 

 snout to origin of anal fin 50 (67.7) ; tip of snout to insertion of 

 pectoral fin 29 (39.2) ; tip of snout to insertion of pelvic fins 29.6 

 (40.0) ; tip of snout to center of anus 42.7 (57.7) ; length of maxillaries 

 10.5 (14.2). 



Color in alcohol. — Peritoneum silvery; sides of body with five 

 narrow, longitudinal, brown streaks and a midventral one on breast 

 between pelvics; on occiput begins the most dorsal streak, continuing 

 along midline of back, dividing just in front of origin of dorsal, a 

 branch passing along each side of base of rays, uniting just behind 

 base of dorsal, and continuing along middorsal line of caudal pedun- 

 cle; second one begins at tip of snout passing along top of head at 

 dorsal edge of orbit, over posttemporal, and along lateral line, leaving 

 it a little in front of origin of dorsal and continuing along upper side 

 of caudal peduncle ; the median streak begins on tip of snout, passes 

 through eye and along midside of body, ending on caudal peduncle; 

 the next one begins on tip of lower jaw and passes just below 

 eye and along midventral side to caudal fin base; the ventral streak 

 begins on tip of lower jaw, extending along ventral margin of 



Figure 19. — Upper and lower jaws of cheilodipterid fishes, showing arrangement of the 

 teeth; bands and patches of villiform teeth are blackened; white spots in black area repre- 

 sent canine teeth, usually in a single row along outer margin; vomerine and palatine teeth 

 not shown: a, Acropoma japonicum, diagram based mostly on U.S.N.M. Nos. 49823, 49824, 

 and 57756; h, Scomhrops, based on U.S.N.M. Nos. 48138, 49932, 57524, and 59619 (speci- 

 mens of S. cheilodipterus and S. boops); c, Telescopias gilberti, based on U.S.N.M. No. 

 57540, a paratype; d, Dinolestes muelleri, based on U.S.N.M. Nos. 49712 and 49713; e, 

 Synagrops, based on U.S.N.M. Nos. 51434 (S. japonica), 39338 (type), 39346, 44621, 

 74325-74328 (all paratypes of S. bella), 70254 (type of S. serratospinosa), 70250 (type of 

 Amia grossidens), and 47732 (type of MelavJostoma argyreum); f, Desmoamia zonatus, based 

 on U.S.N.M. No. 70253 (type) and 70252 (type of Cheilodipterus nigrotaeniatus); 

 g, A^pogonops, based on U.S.N.M. No. 74085 (type of Parasphyraenops atrimanus); 

 h, Epigonus, based on U.S.N.M. Nos. 44827 and 49351 (specimens of E. tekscopius); 

 i, Apogon, based on numerous specimens of several species. 



