154 



CALIFOKNIA ACAUKMV OK SCIKNCES 



Plinviiiiiui Islands only. From tlicsc, B. verrca ilifTois in having smaller scales ami a 

 greater niimher of dorsal and anal rays. Specimens from Panama and Mazallan 

 liave the scales 08 to 05; the dorsal has 30 to o2 rays, and the anal 28 or 21). Five 

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

 (counted from the upper end of the gill-opening); the dorsal has 20 or 30 rays; the 

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

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

 Mazatlan specimens. Bleeker's plate shows that l)is specimen from the lOast Indies 

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



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



Head to lower anyle of ijill-opening 3J in Icnj^th, without caudal: depth 2. Eye ^\ in head; 

 snout il; intcrurbital width t,\. Dorsal III, 31 ; anal 28. Scales from upper end of gill-openinj; 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 Ixise shorter than dorsal base by three-fifths the length of the eye. 

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

 fourth longer than the middle rays. 



Posterior [wrt of sides with g or 10 lengthwi.se series of small antrorse spines. A row of 

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



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

 upr>er 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. capistraius. Caudal blackish; spinous dorsal ilusky, other fins light yellowish. 



Mcasuremaits 771 Hundredths of Length 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 



Mazatlan 



250 

 33 

 51 



30 

 16 



14 

 12 

 16 

 30 

 28 

 61 



194 

 32 

 49 



28 

 16 



I4i 

 12 



15 

 31 

 29 



58 



