Monday, November 26, 2012

Alan's Invertebrates






Phylum: Platyhelminthes
Genus: Pseudobiceros
Species: cf. bedfordi

This specific flatworm is 45 mm. Like other species
in this genus, this hermaphroditic species engages
 in penis fencing to determine who has to bear
the sperm. Many marine flatworms have been discovered
and identified in the last 25 years.
( http://www.youtube.com/watch?v=0D2st1piSTQ )




Phylum: Plathyleminthes
Genus: Pseudoceros
Species: bifurcus
This is a racing stripe flatworm found in the Pacific Tropics.
It is 6cm and not well researched.
Phylum: Playthylmenthes
Genus: Pseudoceros
Species: Unknown
Located exclusively in seas
around Thailand, there's not
much available info about this
beautiful flatworm but it's
quite beautiful and it's bright colours
may dissuade predators. 



Phylum: Porifera
Genus: Oceanapia 
Species: sagittaria 
Another Thailan sponge--Usually
this sponge is seen by itself
or growing on rubble in groups. Water
is exhaled from the sponge. 

Phylum: Porifera
Genus: Aphrocallistes
Species: vastus
Sponges have always been in many seas
since the precambrian. They are major contributors
to reef formations. Are they the sponges we know about
as kids? In a way, yes-- the volume of water
through a sponge can be 20,000x its biological volume in
a 24 hour period! However, many kids grow up
not knowing that sponges have calcareous
skeletons.
 This specific sponge is known
as a cloud sponge. To B.C. divers, you can observe them
in our native coasts.
(http://www.youtube.com/watch?v=6bLjNWpUAyU)

Phylum: Porifera
Genus: Stauro
Species: calyptus
These are a textbook example
of a glass sponge, which some people
think they should be part of their phylum.
That spider is pretty. Implies a symbiotic
relationship


Phylum: Cnidaria
Genus: Carybdea
Species: sivickisi
Cnidarians require zooxanthellae to rake up
sunlight and help convert their digesting prey.
They have two stages: polyp stage, where
they're attached to the ground firmly and
the medusa stage, where they float freely.
This specific species stings people and is
attracted by both artificial and natural light.
Apparently, the Permian period ended 95% of
all marine species, especially Cnidarians. 

Phylum: Cnidaria
Genus: Metridium
Species: farcimen
These "dandelions of the sea" are
found in places that have low kelp
supplies but a lone one might
pop up in a forest.



Phylum: Cnidarian
Genus: Urticina
Species: piscivora

Abundant on rocks without
kelp forests.
It also eats fish--check it:
http://www.youtube.com/watch?v=ruS2u1-uNko



Phylum: Porifera
Genus: Oceanapia 
Species: sagittaria 
Another Thailan sponge--Usually
this sponge is seen by itself
or growing on rubble in groups. Water
is exhaled from the sponge. 

Phylum: Porifera
Genus: Aphrocallistes
Species: vastus
Sponges have always been in many seas
since the precambrian. They are major contributors
to reef formations. Are they the sponges we know about
as kids? In a way, yes-- the volume of water
through a sponge can be 20,000x its biological volume in
a 24 hour period! However, many kids grow up
not knowing that sponges have calcareous
skeletons.
 This specific sponge is known
as a cloud sponge. To B.C. divers, you can observe them
in our native coasts.
(http://www.youtube.com/watch?v=6bLjNWpUAyU)

Phylum: Porifera
Genus: Stauro
Species: calyptus
These are a textbook example
of a glass sponge, which some people
think they should be part of their phylum.
That spider is pretty. Implies a symbiotic
relationship



No comments:

Post a Comment