Sk. Pierce et al., ON THE GIANT OCTOPUS (OCTOPUS-GIGANTEUS) AND THE BERMUDA-BLOB - HOMAGE TO VERRILL,A.E, The Biological bulletin, 188(2), 1995, pp. 219-230
We have obtained samples of two large carcasses. One washed up on a be
ach in St. Augustine, Florida, in 1896 and has been occasionally attri
buted to a species of gigantic octopus (Octopus giganteus). The other
carcass washed up on Bermuda in 1988 and has remained unidentified, al
though its gross morphology, except for a much smaller total mass, was
remarkably similar to the Florida carcass. We have subjected both sam
ples to electron microscopic and biochemical analyses. Our results sho
w that both carcasses are masses of virtually pure collagen. Furthermo
re, neither sample has the biochemical characteristics of invertebrate
collagen, nor the collagen fiber arrangement of octopus mantle. Inste
ad, they are large pieces of vertebrate skin, the Bermuda sample from
a poikilotherm and the Florida sample from a huge homiotherm. We concl
ude that there is no evidence to support the existence of Octopus giga
nteus.