Abnormalities in the vertebral column of Indian mackerel

Abstract

Some abnormalities notiosd In the constituents of the vertebral columns of 9 specimens of mackerel are reported. These include ossified haemal braces farming plate-like structures, fused as well as closely apposed vertebrae, b'fid haemal spine, super-numerary neural and haemal arches and spines, absence of neural spine and fused proximal halves of neural spines which distally remain separate.