New Discoveries:
A Rediscription of Spongosorites
suberitoides
Hermit
crab sponges, while demonstrating similar characteristics,
have also demonstrated rather diverse qualities. As new
studies and published material are compiled, perception
of sponge classification may be altered, further expanding
the complex characteristics of these porifera. By clarifying
these perplexities, further research may interpret more
fascinating qualities of the porifera.
Previously, Spongosorites suberitoides,
a halichondrid (Demospongiae), had been indistinguishable
between its various habitats. This hermit-crab sponge,
which was located in the Gulf of Mexico, was identified
with specimens from North Carolina and Venezuela. However,
specific attributes have rendered the sponges of Dog Island,
Florida slightly different from its counterparts.
Differentiations observed between
the various types of Spongosorites suberitoides include:
• Spicules- Within the Gulf of Mexico
species, the spicules possess a more considerable length
and breadth
• Skeletons- The structure of the
Gulf of Mexico species is far more cavernous. Its compaction
also differs. Essentially, the layout of the skeleton
remains consistent throughout the three divisions of
Spongosorites suberitoides.
• Reproduction- While all species
utilized gemmules for reproduction, the gemmules were
considerably smaller in the Gulf of Mexico species.
The arrangement of these gemmules was actually systematic,
creating a "fish scale" pattern.
• Habitat- The Gulf of Mexico species
inhabited waters slightly more shallow in depth than
the others.
However, such factors are not enough
to distinguish the species from the genus. There are conflictions
in morphological history and skeletal structure. Physically,
the texture is smoother than in comparison to the defintion
of the genus as a "flaky crust" texture.
More perplexities may arise in taxonomical
classification. Certain attributes relate the Spongosorites
suberitoides of the Gulf of Mexico to another classification
of sponges, identified as hadromerid sponges. More cryptic
factors also relate the sponges to several other species,
as a result of methods of reproduction.
Currently, it will suffice to admit
Spongosorites suberitoides into the genus of Suberites,
despite its differences. Its similarities are prominent
enough to make this rational until further research generates
conclusions.