'SCOTIA" COLLECTION OF ATLANTIC KISIIKS. 



391 



The following are a few of the measurements of the specimens in milli- 

 metres, to show individual variations : 



Aulostoma coloratura Miill. & Trosch. 



'2 specimens, young ami adult, taken nil' St Helena, 171 mm. and 

 566 miii. in total length. 



Exocoetus obtusirostris Ounther. 



Dorsal 13; anal 13. Depth of head equal to distance from extremity 

 of snout to hind margin of prseoperculum. Snout H diameter of eye, which 

 is 31 in length of head. Origin of dorsal opposite origin of anal. 



1 specimen, total length 137 mm. 



Exoccetus speculiger ('uv. & Val. 



Depth of body G in the length; length of head 4i. Snout equal to 

 diameter of eye, which is 31 in length of head ; interorbital width slightly 

 more than diameter of eye. 



Dorsal 1<>; first pectoral ray over half the total length of the pectoral fin, 

 which reaches just beyond the extremity of the dorsal. Anal 11. Origin of 

 anal slightly in advanee of the dorsal. Pectoral on upper side blackish, with 

 an oblique white band and white margin. 1 specimen, total length 

 240 mm. 



Holocentrum longipinne HI. Schn. 



Several specimens averaging ^;',o mm. 



(l:oy. I'HY. sue. ]'l:or. vol.. XIX.. 51.) 



