FISHERY BULLETIN: VOL. 80, NO. 2 



Table 1.— Mantle length (ML) ranges, body weight ranges, and collection 

 locations for the species (nla = specimens collected in the Pacific but spe- 

 cific location not available). 



The beaks were then removed from the buccal 

 masses and placed in 40% isopropyl alcohol. 



Beak dimensions were measured with vernier 

 calipers or an occular micrometer. Seven dimen- 

 sions were measured on the upper beak of each 

 specimen: length of the rostrum (RL), rostral tip 

 to inner margin of wing (RW), length of hood 

 (HL), width of the wing (WW), wing to crest 

 length (WCL), jaw angle width (JW) and length 

 of the crest (CL). Five dimensions were mea- 



sured on the lower beak of each specimen: rostral 

 tip to inner posterior corner of lateral wall (RC), 

 rostral tip to inner margin of wing (RW), length 

 of the rostrum (RL), length of the wing(WL), and 

 jaw angle width ( JW) (Fig. 1 ). These dimensions 

 were transformed to ratios to remove the dimen- 

 sionality. Comparisons among species' beak 

 ratios were made with a one-way classification 

 analysis of variance procedure (ANOVA). The 

 ratios were normally distributed and the ratio 



358 



