Nichols — Ichthyology of Bermuda. 61 



instance, in some cases color is the most tangible criterion; even though 

 color changes of each form may be more striking than the color differ- 

 ences between them. It is not improbable that species already recog- 

 nized will eventually be relegated to synonomy, but the following appear 

 to be distinct from any so far described : 



Iridio frenatus, sp. nov. 



A black axillary spot, blotch below the center of side, and on spinous 

 dorsal. Lips pale, a conspicuous pale streak from the corner of the 

 mouth to the base of the pectoral. The type, our only specimen, No. 

 7313, American Museum of Natural History, was collected in Bermuda 

 by Mr. Louis L. Mowbray. It is 89 mm. long to base of caudal. Head 

 3.4 in this length, depth 3.6. Snout 3.3 in head, eye 6.0, interorbital 

 4.8, pectorals and ventrals broken, longest dorsal spine 3.0, dorsal ray 

 2.6, anal spine 6.0, anal ray 3.3, caudal 1.7. 



Head and body moderately compressed. Canines in front of jaws 2 /i, 

 the upper short, lips very full. Lateral line 26. A rather broad naked 

 strip cephalad from the dorsal. Caudal slightly rounded. Dorsal IX, 

 11. Anal III, 11. 



Color in spirits, purplish grey, fading on the lower parts. Front of 

 dorsal purplish grey, becoming pale posteriorly. A black blotch between 

 the 5th and 8th spines, a pale stripe bordering this above, extends back- 

 ward in the center of the fin, purplish grey against a paler ground. A 

 black blotch below the center of the side and spot in the upper axil of the 

 pectoral. Lips pale, and a conspicuous pale stripe from corner of mouth 

 to base of pectoral. 



Iridio similis, sp. nov. 



With small scales before the dorsal as in /. semicinctus of the Pacific 

 and the lateral band bolder and blacker than in many similar appearing 

 species. The type, our only specimen, No. 7312, American Museum of 

 Natural History, was collected in Bermuda by Mr. Louis L. Mowbray. 

 It is 90 mm. long to base of caudal. Head 3.1 in this length, depth 3.6. 

 Snout 3.0 in head, eye 5.0, interorbital 5.0, maxillary 4.6, pectoral 1.5, 

 ventral 1.6, longest dorsal spine 3.2, dorsal ray the same, longest anal 

 spine 3.8, anal ray 3.2, caudal 1.6. 



Head and body compressed. Outer ventral rays excerted. Canines 

 in front of jaws well developed 2 / 2 , the upper curved outward. Lateral 

 line 26. About 8 rows of scales before the dorsal, the anterior reduced 

 in size and some of them crossing the center of the back. Caudal sub- 

 truncate, its angles slightly rounded. Dorsal IX, 11. Anal II, 11. 



Color in spirits pale, a broad, black band from snout onto center of 

 caudal. A black spot in the axil of the pectoral. An elongate black 

 blotch on the spinous dorsal and dusky lengthwise streak in the center 

 of the dorsal behind same. Fins otherwise pale. 



