Xirnikrozz

## Xirnikrozz uysaisiroai

Status: NT

Timespan: R.95 - Present

Habitat: Temperate Shallows, Temperate Open Ocean

Distribution: Southern Uteenessa

Niche: Apex Predator

Size: 31cm

Predecessor: Peregapodus zaxzirkrnk

Classification: Makouridae, Makouridea, Caudaria

Latest Mutations: Limbs = 2, Fins behind limbs = 5, Stronger Jaw = 4

Info: Bursting out of the gloom, this would be the last thing most prey would see. It feeds on other large predators, because only these will sustain it. is an apex predator, and caused one of the previous apex predators to go extinct by the coast; it was faster than them - specifically great acceleration-, with four paddles and it also had a stronger bite, that means it can chew through quite hard materials, like cartilage, and access extra nutrients. Xirnikrozz uysaisiroai, common name "Kroxinkarouyaisiroai" rules the southern temperate seas, and can even hunt almost as effectively at night. Also, it's extensive hunting forced Esoteralimnus into extinction.
Description: This species has a long, blue body that tapers into a whip-like tail, armed with two toxic spikes. It's jaw is made of cartilage and it has tough muscles and lumpy teeth here. On each side of the head is a pinhole eye, that is able to swivel slightly. Behind the retina is a layer of cells containing reflective crystals called a choroidal tapetum cellulosum. Along the side of the body, are three gill slits near the front, and line of electroreceptors. There are four paddle-like limbs of flesh, cartilage and muscle. Inside, they have a gut with a stomach containing carnivorous digestive enzymes, and connected to the gut is a swim bladder. It's brain is not quite as small as most other contemporary species. Finally, supporting the entire body is a spine of cartilage vertebrae.

Behaviour Traits
1. Be vigilant.
2. Do not eat own species.
3. Remain near to capsules after they are laid.

Previous Mutations: Extra-Efficient Muscles, Electroreceptors, Open Circulatory System, Axochord (L), Whip Tail, Three Gill Slits, Notochord (L), Cartilage Vertebrae, Digestive Carnivorous Bacteria, Two Poisonous Spikes on Tail, Dentine Teeth, Venomous Canines, Cup Eyes (L), Blue, Pinhole Eyes, Cartilage Jaw, Bigger, Swim Bladder, Stub Limbs

Discoverer: Biologicah

## Xirnikrozz ikrkinkarnikirkn

Status: CR

Timespan: R.107 - Present

Habitat: Temperate Shallows, Temperate Open Ocean

Distribution: Southern Uteenessa

Niche: Apex Predator

Size: 31cm

Predecessor: Xirnikrozz uysaisiroai

Classification: Peragapodusae, Makouridea, Caudaria

Latest Mutations: Olfactory Receptors = 2, Sharper Teeth = 5, Muscles = 1

Info: Emerging in the shadow of its stronger ancestor, Xirnikrozz invalidus is not a very succesful species, and retains only a small population. Although it has sharp serrated teeth, none of its prey species require particularly sharp teeth to handle and so this advantage is limited. The worst things are that it has olfactory receptors on the face which are not connected to the nervous system and simply waste energy, whilst they have incredibly weak, sparse muscles.

Description: This species has a long, blue body that tapers into a whip-like tail, armed with two toxic spikes. It's jaw is made of cartilage and it has serrated teeth here. On each side of the head is a pinhole eye, that is able to swivel slightly. Behind the retina is a layer of cells containing reflective crystals called a choroidal tapetum cellulosum. Olfactory receptors on the face are uselessly disconnected from the nervous system. Along the side of the body, are three gill slits near the front, and line of electroreceptors. There are four paddle-like limbs of flesh, cartilage and muscle. Inside, they have a gut with a stomach containing carnivorous digestive enzymes, and connected to the gut is a swim bladder. It's brain is not quite as small as most other contemporary species. The muscles are stretched thin throughout the body and are weak. Finally, supporting the entire body is a spine of cartilage vertebrae.

Behaviour Traits:
1. Be vigilant.
2. Do not eat own species.
3. Remain near to capsules after they are laid.

## Xirnikrozz yaisyarkrnk

Temporal Range: R.114 - R.126 (Novaglacian to Untrustolithic Stage of the Atroxian)

Habitat: Temperate Shallows, Temperate Open Ocean

Distribution: Southern Uteenessa

Niche: Apex Predator

Size: 31cm (length)

Nutritional Worth: 68/10 x 31 = 210.8NP

Predecessor: Xirnikrozz Ikrkinkarnikirkn

Classification: Peragapodusinae (sf), Thanostomidae (f), Flagracauda (so), Caudomorphii (c), Bilateria (p)

Perception: Blurry vision with no depth perception on either side, could see well in low light, could use electroreception up to ten metres away.

Latest Mutations: Connect Olfactory Receptors = 3, Hearing = 2, Improve muscles = 6

Info: This was at one point the top predator in the Southern Hemisphere, moving quickly and efficiently through the seas to its prey. It was involved in an arms race with its own kind, but was overtaken by the other lineage of Xirnikrozz. In addition to non-functioning olfactory receptors, this species had a lateral line of microvili that detect vibrations but that are unconnected to the rest of the neural network. Like the olfactory receptors, this hindered rather than helped the Xirnikrozz. However, it had stronger and more efficient muscles than any of its ancestors. It played second fiddle to Xirnikrozz crusherei which had a much better sense of smell to locate food, not to mention a stronger jaw. It went a
extinct when an even bigger competitor with a heart appeared; Neoxirnikrozz cormeus.

Anatomy: This species has a long, blue body that tapers into a whip-like tail, armed with two toxic spikes. It's jaw is made of cartilage and it has serrated teeth here. On each side of the head is a pinhole eye, that is able to swivel slightly. Behind the retina is a layer of cells containing reflective crystals called a choroidal tapetum cellulosum. Olfactory receptors on the face are uselessly disconnected from the nervous system. Along the side of the body, are three gill slits near the front, and line of electroreceptors. This is joined by a disconnected lateral line. There are four paddle-like limbs of flesh, cartilage and muscle. Inside, they have a gut with a stomach containing carnivorous digestive enzymes, and connected to the gut is a swim bladder. It's brain is not quite as small as most other contemporary species. The muscles are strong. Finally, supporting the entire body is a spine of cartilage vertebrae.

Behaviour: This species is capable of processing information gathered from sense receptors and using that to form a picture of its surroundings. It can then respond to stimuli. It also has basic reasoning. Other than its standard survival responses, Xirnikrozz always try to be vigilant of their surrounding, they avoid eating their own kind and they also remain close to their eggs until hatching.

Cause of Extinction: Outcompeted

Discoverer: Biologicah

## Xirnikrozz crusherei

Status: LC

Temporal Range: R.117 - Present (Novaglacian)

Habitat: Temperate Shallows, Temperate Open Ocean

Distribution: Southern Uteenessa

Niche: Apex Predator

Size: 31cm (length)

Nutritional Worth: 86/10 x 31 = 266.6NP

Predecessor: Xirnikrozz ikrkinkarnikirkn

Classification: Thanostominae (sf), Thanostomidae (f), Flagracauda (so), Caudomorphii (c), Bilateria (p)

Perception: Blurry vision with no depth perception on either side, can see well in low light, can use electroreception up to ten metres away, can accurately smell odours up to tens of metres away

Latest Mutations:  Muscles = 6, Olfaction = 6, Jaw = 6

Info: Arising to compete against Xirnikrozz yaisyarkrnk, Xirnikrozz crusherei is fairly similar with strong, energy-efficient muscles, although it has an edge; as the name suggests it has more powerful, reinforced jaws that can crush through cartilage or calcium carbonate shells if it needed two. Substances like bone and chitin are still too tough but it does not need this much power. It can also find prey from further away as it has olfactory receptors which can pick up smells from tens of metres away and follow them fairly accurately to their source. This means that this slinky predator has usurped Xirnikrozz yaisyarkrnk.

Anatomy: This species has a long, blue body that tapers into a whip-like tail, armed with two toxic spikes. It's muscular jaw is made of cartilage but reinforced with a layer of tessarae and it has serrated teeth here. On each side of the head is a pinhole eye and olfactory receptors are also found on the head. Behind the retina is a layer of cells containing reflective crystals called a choroidal tapetum cellulosum. Along the side of the body, are three gill slits near the front, and line of electroreceptors. There are four paddle-like limbs of flesh, cartilage and muscle. Inside, they have a gut with a stomach containing carnivorous digestive enzymes, and connected to the gut is a swim bladder. It's brain also contains an olfactory lobe. The muscles are strong and energy-efficient. Finally, supporting the entire body is a spine of cartilage vertebrae.

Behaviour: This species is capable of processing information gathered from sense receptors and using that to form a picture of its surroundings. It can then respond to stimuli. It also has basic reasoning. Other than its standard survival responses, Xirnikrozz always try to be vigilant of their surrounding, they avoid eating their own kind and they also remain close to their eggs until hatching.

Discoverer: Robotrannicrex

## Xirnikrozz kixarjiuryziyak

Temporal Range: R.122 - R.126 (Novaglacian to Untrustolithic Stage of the Atroxian)

Habitat: Temperate Shallows, Temperate Upper Ocean

Distribution: Southern Uteenessa

Niche: Apex Predator

Size: 31cm (length)

Nutritional Worth: 80/10 x 31 = 248NP

Predecessor: Xirnikrozz yaisyarkrnk

Classification: Peragapodusinae (sf), Thanostomidae (f), Flagracauda (so), Caudomorphii (c), Bilateria (p)

Perception: Blurry vision with no depth perception on either side, could see well in low light, could use electroreception up to ten metres away, could hear noises up to ten metres away

Latest Mutations: Connect Olfactory Receptors = 4, Connect Hearing Receptors = 4, Spines = 1

Info: This species was always a fairly uncommon apex predator in the temperate seas of the Southern Hemisphere but struggled on for a million years. It was one of the few animals to be able to hear noises, which gave it a little bit of an edge but it was still outcompeted. It also had the ability to smell, although not as well as Xirnikrozz crusherei. The fatal flaw of this species was that it had very weak skin that was easily torn; a terrible handicap for a predator hunting herbivores with dangerous spines. It was the end of this lineage of Xirnikrozz.

Anatomy: This species has a long, blue body that tapers into a whip-like tail, armed with two toxic spikes. It has weak skin. It's jaw is made of cartilage and it has serrated teeth here. On each side of the head is a pinhole eye, that is able to swivel slightly. Behind the retina is a layer of cells containing reflective crystals called a choroidal tapetum cellulosum. It has olfactory and hearing receptors on the face. Along the side of the body, are three gill slits near the front, and line of electroreceptors. There are four paddle-like limbs of flesh, cartilage and muscle. Inside, they have a gut with a stomach containing carnivorous digestive enzymes, and connected to the gut is a swim bladder. It's brain is not quite as small as most other contemporary species. The muscles are strong. Finally, supporting the entire body is a spine of cartilage vertebrae.

Behaviour: This species is capable of processing information gathered from sense receptors and using that to form a picture of its surroundings. It can then respond to stimuli. It also has basic reasoning. Other than its standard survival responses, Xirnikrozz always try to be vigilant of their surrounding, they avoid eating their own kind and they also remain close to their eggs until hatching.

Cause of Extinction: Outcompeted

Discoverer: Biologicah