The largest living cartilaginous fish, of the order Orectolobiformes, is the whale shark (Rhincodon typus), of the world's tropical oceans.
[30] The largest of the now-extinct Acanthodii was Xylacanthus grandis, an ischnacanthiform based on a ~35 cm (14 in) long jaw bone.
The record size ocean sunfish crashed into a boat off Bird Island, Australia in 1910 and measured 4.3 m (14 ft) from fin-to-fin, 3.1 m (10 ft) in length and weighed about 2,300 kg (5,100 lb),[1] while the other record for the biggest bony fish is yet held by a Mola alexandrini which was also coincidentally 2,300 kg (5,100 lb) in mass and 3 m (9.8 ft) in length, caught off in 1996 and misidentified as a Mola mola.
As for length, the longest extant bony fish on earth is the giant oarfish (Regalecus glesne).
[1] Much larger bony fish existed prehistorically, the largest ever known having been Leedsichthys of the Jurassic period.
The average weight of the living West Indian Ocean coelacanth, (Latimeria chalumnae), is 80 kg (180 lb), and they can reach up to 2 m (6.6 ft) in length.