242 



PROCEEiDINGS OF THE NATIONAL MUSEUM 



VOL. 94 



Table 9. — Measurements, in hundredths of the standard length, for two species 



of Ageneiosus. 



Characters 



freiei 



U.S.N.M. 

 No. 121260 



U.S.N.M. 

 No. 121261 



U.S.N.M. 

 No. 121262 



U.S.N.M. 



No. 78254 



Standard length (in mm.) 



LenfJth of head to end of operculum 



Greatest depth of body 



Length of snout 



Diameter of eye 



Width of interorbital space 



Distance between anterior and posterior nostrils.. 



Distance from eye to anterior nostril 



Width (greatest) of preniaxUlary band of teeth. .. 

 Width of mouth across outer corners of upper jaw 



Width of head at base of pectorals _. 



Length of maxillary barbeL 



Least depth of caudal peduncle 



Length of caudal peduncle 



Total length of adipose fin _ 



Length of anal fin base 



Snout to dorsal origin 



Snout to anal origin ^ 



Snout to adipose origin 



Snout to pelvic insertion 



Snout to pectoral insertion , 



Snout to anus.-- 



Length of dorsal spine 



Length of pectoral spine- -. 



Longest branched ray of pelvic fin 



Longest branched ray of pectoral fin 



Longest branched ray of dorsal fin... 



Longest branched ray of anal fin. 



Longest ray of upper lobe of caudal fln... 



Longest ray of lower lobe of caudal fin 



207 

 33.6 

 19.3 

 15.9 



4.83 

 14.4 



3.67 

 10.2 



3.29 

 16.5 

 18.8 



4.54 



7.49 

 10.8 



8.50 

 27.8 

 35.1 

 63.3 

 82.2 

 52.6 

 30.7 

 61.1 

 16.4 

 14.5 

 13.0 

 14.3 

 18.0 

 10.6 

 22.0 

 21.5 



215 

 35.7 

 18.6 

 16.7 

 4.05 

 16.0 

 3.68 

 11.2 

 3.35 

 16.7 

 18 7 

 3.05 

 6.51 

 9.77 

 6.70 

 29.7 

 36.3 

 62.8 

 81.7 

 51.6 

 32.1 

 60.5 



12.9 

 12.3 

 14.5 

 17.4 

 9.07 

 21.1 

 19.0 



370 

 32.3 

 16.7 

 16.5 



3.11 

 16.9 



3.40 

 10.8 



2.97 

 18.9 

 19.9 



5.86 



6.49 

 12.0 



7.43 

 29.6 

 34.7 

 60.8 

 81.9 

 49.8 

 29.2 

 59.4 

 10.5 

 13.5 

 10.1 

 13.3 

 15.7 



8.38 

 14.6 

 14.5 



204 

 29.4 

 17.4 

 14.5 

 4.76 

 13.4 

 3.68 

 9.85 

 2.55 

 15.7 

 17.9 

 3.73 

 6.86 

 12.1 

 7.45 

 29.1 

 32.5 

 62.2 

 80.9 

 47.6 

 28.7 

 57.0 

 17.9 

 14.7 

 13.0 

 14.0 

 17.6 

 11.0 

 20.7 

 19.4 



Table 10. — Counts made on three species of Ageneiosus. 



Color. — Dark above, paler below, with a pale band beginning around 

 a large black blotch back of head and a little in front and below dorsal 

 origin, continuing to base of caudal fin, where it may be interrupted 

 by a mora or less broken band at base of caudal fin rays; a wide black 

 band beginning near upper end of gill opening continues along upper 

 midsides to midbase of caudal fin, this band posteriorly sometimes 



