"SCOTIA" COLLECTION OF ATLANTIC FISHES. 



391 



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

 metres, to show individual variations : 



Aulostoma coloratum Mull. & Trosch. 



2 specimens, young aiid adult, taken off St Helena, 171 mm. and 

 566 mm. in total length. 



Exocoetus obtusirostris Giinther. 



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

 of snout to hind margin of prjeoperculum. Snout f diameter of eye, which 

 is 3| in length of head. Origin of dorsal opposite origin of anal. 



1 specimen, total length 137 mm. 



Exocoetus speculiger Guv. <k Val. 



Depth of body 6 in the length ; length of head 4|. Snout equal to 

 diameter of eye, which is 3J in length of head ; interorbital width slightly 

 more than diameter of eye. 



Dorsal 10 ; 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 advance of the dorsal. Pectoral on upper side blackish, with 

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

 240 mm. 



Holocentrum longipinne Bl. Schn. 



Several specimens averaging 230 mm. 



(KOY. PHY. soc. PROC., VOL. xix., 51.) 



