Ophiclinus pectoralis was created in 1980.
Ophiclinus brevipinnis was created in 1980.
Ophiclinus antarcticus was created in 1872.
Ophiclinus gabrieli was created in 1906.
Ophiclinus gracilis was created in 1906.
Ophiclinus ningulus was created in 1980.
Enneanectes pectoralis was created in 1941.
Dactyloscopus pectoralis was created in 1861.
pectoralis major and pectoralis minor
there are two muscles with pectoralis in their name, Pectoralis Major and Pectoralis Minor. Pectoralis Major is the main muscle of the chest and pectoralis minor is deep to it (so you can't feel it because pectoralis major completely covers it)
Pectoralis minor.
The heart is deep to the pectoralis major. The pectoralis major is superficial to the heart.
The Pectoralis Major (large superficial) and Pectoralis Minor