FISHERY BULLETIN: VOL. 71, NO. 3 



Table 1. — Summary of meristics of four species of Ar^yripniis. Frequency data are not available for A. ailanticiis except 



one vertebral count (Grey, 1964). 



of 14-17 photophores is attained in specimens 

 longer than about 65 mm SL (Figure 2). Counts 

 for specimens in which the two sides varied are 

 given as the average of the two. 



Vertebral counts were obtained from the 20 

 specimens in the type series and three cleared 

 and stained specimens. Frequency of occur- 

 rence was as follows (including urostyle): 41 

 vertebrae (15 precaudal -I- 26 caudal), 5 speci- 

 mens; 42 (15 + 27), 17 specimens; 43 (15 + 

 28), 1 specimen. Of the five specimens with 41 



vertebrae, three exhibited double neural and/or 

 haemal spines on the penultimate vertebra. 

 Vertebral counts for A. ephippiatus and A. 

 iridescens are given below. Only one vertebral 

 count (46 total) is available for A. atlanticus 

 (Grey, 1964). 



The number of teeth on the maxillary bone 

 of A. brocki (as well as A. ephippiatus and 

 A. iridescens) increases with growth, there 

 being 15-16 teeth at a SL of about 50 mm and 

 22-30 at about 90 mm. Although A. brocki 



830 



