#remipedia

[patheticmosasaur1]

today's invertebrate......speleonectes tanumekes

in this here image you can see all the parts of speleonectes tanumekes, and as you can tell (if you have great observational skills) she only has 4 body parts. anything else not labelled is utter nonsense that's made up and not real

glorpiness rating: REMMINGTON

photograph by J. van der Ham (CC BY 2.5)

[bestanimal]

Round 2 - Arthropoda - Remipedia

(Sources - 1, 2, 3, 4)

Remipedia is a class of small crustaceans commonly regarded as the link between Hexapods (insects and their relatives) and other crustaceans. They are very rare, and so far have only been found in saltwater caves in the Bahamas, North Caicos, Australia, Cuba, Spain, Mexico, Belize, and the Dominican Republic.

Remipedes can be around 1–4 centimetres (0.4–1.6 in) long, comprised of a head and up to 32 body segments. As cave animals, they lack both pigmentation and eyes. They have enhanced olfactory nerve centers, and likely “see” their world through smell. Swimming appendages on the sides of each segment allow them to swim slowly on their backs. They are filter feeders, but some species are known to be venomous predators: using fangs to inject a combination of digestive enzymes and venom into their prey. Aside from insects, these are the only known venomous crustaceans.

Remipedes are hermaphroditic. Their larvae appear to be non-feeding and do not develop mouths, guts, and anuses until their juvenile stage. Due to the energy required for swimming, moulting, and growing, it’s speculated that the larvae may feed with help from symbiotic bacteria.

The first described remipede was the fossil Tesnusocaris goldichi from the Carboniferous period. Since 1979, at least 30 living species have been discovered. Since the class was first described from fossil specimens, with living members being found after, this makes them a Lazarus Taxon.

(source)

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Voting ended onNov 23, 2024

[astronomy-to-zoology]

Lasionectes entrichoma

...is a species of remipede that is found in caves around the Middle Caicos and Providenciales Islands in the Caicos Island chain. Like all remipedes L.entrichoma is a stygobite (animal that lives in aquatic caves) and is completely blind. Instead It uses its long antennae and sensory hairs to navigate its environment.

Phylogeny

Animalia-Arthropoda-Crustacea-Remipedia-Nectiopoda-Speleonectidae-Lasionectes-L.entrichoma

Image: ucmp.berkeley.edu