Caelorinchus longissimus was created in 1943.
Caelorinchus sheni was created in 2004.
Caelorinchus asteroides was created in 1963.
Lineus longissimus was created in 1770.
Wayne Douglas Warnock has written: 'Effects of time on the cross sectional area of the bovine longissimus dorsi' -- subject(s): Longissimus dorsi, Beef, Grading
The Lineus Longissimus also known as the Ribbon Worm
The longissimus dorsi muscle in the human body is responsible for extending and laterally flexing the spine, as well as assisting in maintaining posture and supporting the back during various movements.
erectus spinae
Michrochaetus rappi (Michrochaetus michrochaetus)
The main group of muscles supporting the back are the erector spinae, comprised of the spinalis, longissimus,and iliocostalis.
There are many folkloristic legends about it; however the longest animal, living and ever lived, is said to be the ribbon worm Lineus longissimus, reaching more than 60 metres of lenght.
Three major muscles in the back are the trapezius, latissimus dorsi, and the spinal erectae.
Core muscles include those of the pelvic floor, internal and external oblique's, rectus abdominus, sacrospinalis, and the longissimus thoraces. Minor core muscles include the latissimus dorsi and the trapezius.