PLATE II. 



Figs. A-C. Cuhiceps gracilis, nat. size. A. from Madeira, B. from the Azores, C. from 

 Messina. 



Fig. D. Thynnus thunnina, young, 17 mm. long. West Pacific. 



Fig. E. Lirus paucidens, 35 mm. long, West Pacific. 



Fig. F. Lints porosus, head of a specimen 30 mm. long, ofi" Kermadec Islands. 



Fig. G. Psenes arafurensis, nat. size, from the Arafura Sea. 



Fig. H. Platystethus huttonii, nat. size. New Zealand. 



Fig. I. Platystethus huttonii, young, 26 mm. long. South Pacific. 



Fig. K. Lophotes cepedianus, young, 11 mm. long. West Pacific. 



Fig. K'. Posterior end of the same, much enlarged, c. Caudal fringe ; a. anal fringe ; 

 pa. prseanal fringe ; v. vent. 



