88 



CALIFORNIA ACADEMY OF SCIENCES 



Measurements in Hiaidredths of Length without Caudal. 



Type 



Length without caudal in mm 



Head 



Depth 



Eye 



Snout 



Maxillary 



Longest dorsal rays 



Longest anal rays 



Length of pectoral 



Length of caudal 



Number of scales 



Number of dorsal rays 



Number of anal rays 



Number of gill-rakers 



200 



28|- 



37 



8 



i9i 

 20 



32 



34 

 107 



"1-45 

 "1,43 

 5+16 



215 

 28 



38 



5i 



n 



i9i- 



21 



32 



34 

 112 



III. 45 

 111,42 



4+14 



21 1 



27 

 37^ 



5i 

 7i 



8 



19 

 20 



31 



33 



106 



I", 43 

 "i>43 

 4+16 



1S7 



28 



39 



5i 



8 



8^ 

 22 



24 

 33 

 36 



111,44 

 111,42 

 4+16 



180 

 29 



41 

 5i 



8 



H 



2ii 



23 



32I 



34 



II I 



111,44 



111,42 



4+14 



187 

 28 



n 



8 

 20 



21 



32 



35 

 loS 



i",45 

 "1,43 

 4+15 



192 



39 



5i 



7i 



8^ 

 22 



23 

 33 



35 



109 



111,44 



111,42 



4+14 



158. Peprilus medius {Peters). 



The Panama record of this species (Jordan, 1885, p. 375) needs verification. 

 The specimens obtained may have belonged to one of the forms above recorded, 

 both of which were at that time unknown. Only the tyf)e of P. medius is now 

 extant. 



Family CHEILODIPTERID^. 

 159. Apogon dovii Gilnther. 



Abundant about the rocky islands in Panama Bay. 



The species varies in color from light to dark red, with much or little black 

 pigment. The caudal may be translucent or blackish, the soft dorsal is translucent, 

 or may be tipped with black, or may be largely black with only the posterior rays 

 whitish. The anal and ventral fins may also be translucent, or with the terminal 

 portions more or less largely black. Young specimens are marked with a very con- 

 spicuous round or elliptical black spot on the end of the caudal peduncle, and a rather 

 poorly-defined dusky streak around the snout and across the opercle. The streak 

 wholly disappears and the caudal spot becomes very faint and diffuse with age. 



