148 PROCEEDINGS OF THE ACADEMY OF [April, 



extending back to about opposite depressed pectoral tip. Back 

 lilac-brown, largely pale. Belly and below very pale brown. Teeth 

 whitish. Iris yellowish. Dorsal pale hyaline greenish, base broadly 

 and edge narrowly yellowish-brown. Anal hyaline-greenish, with 

 narrow basal yellowish-brown line and broad submarginal band. 

 Pectoral and ventral pale. Caudal brownish, upper and lower edges 

 pale. Length 180 mm. L. 



61. C. caeruleus (Bloch). 



62. C. emblematicus (Jordan and Rutter). 



Head 3; depth 3; D. IX, 10; A. Ill, 9; scales 17-^5 and 2 more on 

 caudal base; 2 scales above 1. 1., 6 below; snout 2f in head; eye 5; 

 mouth 4f; interorbital 3|. Body well compressed, profiles alike, 

 evenly ellipsoid. Head compressed. Snout long as wide. Eye 

 slightly advanced. No posterior canines. Interorbital convex. 

 Cheek with 3 rows of scales, lowest row on preopercle limb of 4. 

 Scales on caudal base over f of fin. Dorsal spines rather pungent, 

 \Adth flexible ends. Color in alcohol pale buff -brown generally. 

 Broad lengthwise deep brown band from above eye to last dorsal 

 ray bases, another from snout tip through eye to upper caudal lobe 

 medially. Fainter third parallel band begins in cheek below pre- 

 orbital, extends to pectoral base and then to lower caudal lobe me- 

 dially, where ending in slight spots. Rows of scales below pectorals 

 each with median white line, which extends from gill-opening till 

 opposite vent, and rows number three. Fins all pale brownish, 

 edges of dorsal and caudal, also caudal base, same. Length 150 

 mm. L. 



CaUijodon margarita Fowler,^^ from Panama, is undoubtedly a 

 synonym, the four upper posterior canines simply a variation. Jor- 

 dan and Evermann do not indicate the lower dark band along the 

 lower side of the head or distinct at caudal base, and there is no 

 indication of white abdominal lines, nor are they mentioned by 

 Jordan and Rutter. 



63. ChcEtodon striatus Linne. L. 66. Angelichthys ciliaris (Linne). 



64. C. capiistraius Linne. L. 67. Hepalus cceruleus (Schneider). A. 



65. Pomacanthus arcuatus (Linne). L. 



68. Melichthys piceus Poey. 



D. Ill — 34; A. 32; scales 55 from gill-opening to caudal base; 

 snout Ij in head; eye 4| in snout; interorbital If; first dorsal spine 

 If; pectoral If. Caudal truncate, ends pointed. Color in alcohol 



21 Proc. Acad. Nat. Sci. Phila., 1917, p. 133, fig. 2. Colon. 



