242 REPORT OF NEW JERSEY STATE MUSEUM. 
Largest of the mackerels reaching 1o feet or more in length 
and weighing 150 pounds. A pelagic fish on all warm coasts, 
and an excellent food-fish. The only occurrence on our coast I 
noted concerned a large example examined in the Philadelphia 
market. It was taken near Brighton in the ocean, November 4th, 
1898. 
Thunnus thynnus Fowler, Science, XVII, April 10, 1903, p. 
594- 
Genus SARDA Cuvier. 
The Bonitos. 
Sarda sarda (Bloch). 
Bonito. Bone Jack. Bone Eater. Skip Jack. 

Bonito. Sarda sarda (Bloch). 
Head 3748 depth 4%; D: XXI-1, 12,8; Aviv; 11, 75 ida 
of head 15% in its length; depth of head over posterior margin 
of orbit 134; snout 3; eye 7; maxillary 2; interorbital space 3% ; 
third dorsal spine 256; first branched dorsal ray 3%; first 
branched anal ray 3%; pectoral 2'/,,; ventral 314; greatest 
width of caudal peduncle 5. Body robust, moderately compressed, 
and elongate. Head large, compressed and pointed. Snout long 
and conic. Eye small, circular and with rather narrow adipose 
eyelid. Mouth large and jaws even. ‘Teeth rather strong, 
slightly compressed in jaws, also on palatines, but none on 
vomer. Maxillary not concealed, reaching a little beyond orbit 
and its posterior expansion a trifle over half of same. Interorbital 
