644 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [46] 



46. HALICHCBRES DIMIDIATUS. - 



fLabrus cyanocephalus Bloch, Ichthyol., pi. 286, 1791 (Museum of Link). 



Julis dimidiatus Agassiz, iu Spix, Pise. Braz., 96, pi. 53, 18*^9 (Brazil) ; Cuv. & Val., 



xiii, 407, 1839 (Martinique; Brazil). 

 Jchthycallus dimidiatus Swainson, Class. Fish, etc., 232, 1839 (name only). 

 Platyglossus dimidiatus Jordan, Proc. U. S. Nat. Mus., 45, 1886 (Havana) ; Jordan 



& Hughes, 1. c., 1886, 61 (Havana). 

 Julis internasalis Poey, Mem. Cuba, ii, 421, 1860 (Havana). 

 Platyglossus internasalis Giinther, Cat. Fish. Brit. Mus., iv, 164, 1862 (Caribbean Sea) ; 



Cope, Trans. Am. Phil. Soc., 463, 1870 (St. Martin's). 

 Chcerojulis internasalis Poey, Synopsis, 334, 1868 (Havana) ; Poey, Enunieratio, 108, 



1875 (Havana). 



Habitat. — West Indian fauna ; south to Brazil. 



Etymology : Dimidiatus, halved, the upper half of the body being 

 colored differently from the lower. 



There seems to be no reason for regarding the Cuban internasalis as 

 different from the Brazilian dimidiatus, the alleged differences in color 

 being due to defects in descriptions. A specimen before us from Bahia 

 shows the band from eye to nape very distinctly. It is broader behind 

 and edged with darker blue. We have also examined a smaller speci- 

 men from St. Lucia. Two male specimens of H. dimidiatus from Havana 

 are each about 15 inches in length. In life they showed the following 

 coloration : 



Deep light olive-green on head and back, the head bluer, then a 

 broad lateral band of deep indigo, below this light clear green, then 

 darker bluish-green : clear blue on lower jaw below and clear greeuish- 

 blue on lower part of cheek ; lateral band becoming faint on head ; a 

 dark streak along profile from snout to nape ; a dark bluish band up- 

 ward and backward from eye to nape, rather conspicuous, narrowed 

 posteriorly; dorsal indigo, edged with sky-blue; caudal green, indigo 

 in center, yellowish at tip ; anal indigo, then dull orange, then sky- 

 blue ; ventrals green ; pectorals plain greenish, indigo above. 



It is not unlikely that Labrus cyanocephalus Bloch, from unknown 

 locality, was based on this species, as Oastelnau has already suggested.' 



47. HALICHCBRES MACULIPINNA. 



Julis maculipinna Miiller & Troschel, in Schoinburgk Hist. Barbadoes, 674, 1848 (Bar- 



badoes). 

 Platyglossus maculipinna Giinther, Cat. Fish. Brit. Mus., iv, 1862, 165 (Trinidad). 



Jordan, Cat. Fish. N. Am., 1885, 99 (Beaufort, N. C). Jordan, Proc. U. S. 



Nat. Mus., 1886, 28 (Beaufort). Jordan & Hughes, 1. c., 1886, 62 (copied). 

 Chwrojulis maculipinna Poey, Synopsis Pise. Cub., 1868, 336. Poey, Enuuieratio, 109, 



1875 (Havana). 

 Pusa radiata Jordan & Gilbert, Proc. U. S. Nat. Mus., 1878, 374 (Beaufort). 



Habitat. — West Indian fauna ; north to Beaufort. N. O. 



Etymology: Macula, spot; pinna, fin. 



Of this species we have examined a small specimen taken by the 

 Albatross at Port Castries, St. Lucia. From this our description has 

 been taken. The species is closely allied to H. bivittatus, but is readily 

 distinguished by the black dorsal spot and stouter form. 



