ZooL.-VOL. II.] JORDAN &^ STARKS— JAPANESE FISHES. 383 



Dimensions. 



Hundredths of length 

 mm. without caudal. 



Entire length 217 



Length without caudal 163 



Head 40 



Depth 37 



Eye 10 



Maxillary 16 



Snout 10 



Depth of caudal peduncle 08 



Length of pectoral 37 



Length of fifth dorsal spine 20 



Length of longest dorsal rays 22 



Length of longest anal rays 24 



Length of ventrals 27 



Distance from base of last anal ray to base of caudal . . .20 



Pomacentrus ccelestis, sp. nov. 



Plate XXL 



Head 3.5 in body; depth 2.8; eye 3.1 in head; maxillary 3.2; interorbital 

 4, equal to snout. Dorsal xiii, 14; anal 11, 14; scales 21^—25—9. 



Body regularly ovate-oblong, the anterior dorsal profile more convex than 

 ventral. Interorbital space convex. Tip of snout on a level with lower 

 margin of eye. Mouth small, slightly oblique, the jaws about equal; maxil- 

 lary reaching to below anterior edge of pupil; teeth in a single row in jaws, 

 conical, rather blunt. Preorbital entire. Preopercle sharply denticulated. 



Dorsal without a notch between the spinous and rayed portions. The 

 raj's and spines are evenly graduated from the first spine to the eighth or 

 ninth soft ray. The last spine is about twice the length of the first, while the 

 ninth ray is about three times. The rays thence rapidly shorten, leaving the 

 longest rays projecting beyond the tip of the last ray a distance nearly equal 

 #0 the latter's length, and reaching past base of caudal rays. Anal similar to 

 dorsal and about of the same height; its base and tips of longest rays 

 ending slightly anterior to those of dorsal. Pectoral shorter than head by 

 about half the eye's diameter; its tip reaching to within a scale and a half 

 above origin of anal. The first ray of ventral filamentous; its tip just reach- 

 ing to anal. Lobes of caudal pointed, the upper lobe the longer. 



Snout, lower jaw, interorbital ring, and edge of preopercle naked. Cheeks 

 with two rows of scales. Scales on top of head extending forward to above 

 anterior edge of pupil. A row of scales between each ray and spine of anal, 

 dorsal, and caudal. Lateral line on sixteen scales, stopping under base of 

 last dorsal spine. 



Color in alcohol: back above lower edge of pectoral cobalt blue with a 

 vertical dark line at the base of each scale, which extending under the trans- 

 parent edge of each preceding scale shows through it, the color below 



