154 



CALIFOKNIA ACADEMY OF SCIENCES 



Hawaiian Islands only. From these, B. verves differs in having smaller scales and a 

 greater number of dorsal and anal rays. Specimens from Panama and Mazatlan 

 have the scales 58 to 65; the dorsal has 30 to 32 rays, and the anal 28 or 29. Five 

 specimens of B. capistratiis from Hawaii have 50 or 51 oblique series of scales 

 (counted from the upper end of the gill-opening) ; the dorsal has 29 or 30 rays; the 

 anal 25 to 27 rays. The caudal of the Hawaiian specimens is truncate, with the 

 outer rays not produced. The caudal is noticeably lunate in the Panama and 

 Mazatlan specimens. Bleeker's plate shows that his specimen from the East Indies 

 has 50 series of scales, 30 rays in the dorsal fin, and 27 in the anal. 



The following description is from the type of B. verves: 



Head to lower angle of gill-opening 3| in length, without caudal; depth 2. Eye 5^ in head; 

 snout i^; interorbital width 3^. Dorsal III, 31; anal 28. Scales from upper end of gill-opening 64. 



Teeth with their inner cutting edge produced, the lower ones shutting inside of the upper. 

 The groove before the eye is scarcely longer than the eye. The length of the gill-opening is twice the 

 diameter of the eye, and about equal to the length of the longest pectoral ray. 



Groove of spinous dorsal a little longer than first dorsal spine, two-thirds the length of the 

 base of the soft dorsal. Anal base shorter than dorsal base by three-fifths the length of the eye. 

 Anterior part of dorsal a little higher than that of anal. Caudal lunate, the outer rays about one- 

 fourth longer than the middle rays. 



Posterior part of sides with 9 or 10 lengthwise series of small antrorse spines. A row of 

 very small pores extends irregularly backward from eye nearly to the front of soft dorsal. 



Color in alcohol: upper parts of body brownish slate-color, lighter below. Anterior edge of 

 upper lip, and lower lip and chin light yellowish. A scarcely discernible streak extends backwards 

 across cheek from angle of mouth. Other specimens have this streak very conspicuous, as in 

 B. capistratus. Caudal blackish; spinous dorsal dusky, other fins light yellowish. 



Measurements in Hundredths of Le^igth without Caudal. 



Locality 



Length without caudal, in mm 



Head 



Depth 



Eye 



Snout 



Height of anterior part of dorsal , 

 Height of anterior part of anal.... 



Length of pectoral 



Length of caudal (middle rays) .. 



Number of dorsal rays 



Number of anal rays 



Scales 



194 

 32 



49 



6i 

 28 

 16 

 i4i 

 12 



15 

 31 

 29 



58 



