176 GILBERT 



In one specimen there is a broad white transverse bar below the chin 

 as in S. rubripinne ; in the other this marking is not evident, and the 

 bars on the caudal are indicated on the outer rays only. 



64. Scarus croicensis (Bloch). 



Two specimens, 93 and 76 mm. long, from the coral reef near 

 Maceio. These show the characteristic lengthwise dark streaks, but 

 not the naiTow silvery lines along the sides of the belly. This may, 

 however, be due to their preservation in formaldehyde, which dissolves 

 silvery pigment. 



G^. Chaetodon ocellatus (Bloch). 

 Mamangviape. 



66. Chaetodon striatus Linnaeus. 

 Pernambuco. 



67. Teuthis bahianus (Castelnau). 



Mamanguape ; mouth of the Rio Goyanna ; Pernambuco. 



In one specimen from Pernambuco, 160 mm. long, there is a very 

 short dorsal fin, with but 20 soft rays. In the same specimen the anal 

 formula is III, 23. 



68. Balistes vetula Linnaeus. 

 Maceio. 



69. Lagocephalus laevigatus (Linnaeus). 

 Maceio. 



70. Spheroides testudineus (Linnaeus). 

 Pernambuco ; Maceio. 



71. Spheroides greeleyi new species. 



Two specimens from the coral reef near Maceio, ii3 and 105 mm. 

 long, the larger taken as the type of the species. 



Very close to S. spc?ig-leri, from which it differs principally in col- 

 oration, as it entirely lacks the conspicuous series of black spots along 

 the lower edge of the sides, which is so characteristic of S. spengleri 

 and its near allies. 



The space between the bony orbital ridges is narrow, concave, its 

 least width \\ in the exposed portion of the eye, 4 in the snout. Eye 

 5 in head; snout half head. Width of gill-slit equaling exposed por- 

 tion of the eye. Upper caudal rays longest, equaling distance from 

 tip of snout to posterior edge of pupil. Dorsal with 8 rays, its height 

 contained 2| times in head. Anal with 7 rays, its height contained 3 

 times in head. Pectorals broad, the width of the base contained \\ 

 times in the longest ray, which is 2^ in head. Pectoral rays 15. 



