Arencolus

## Arencolus tanoii

Latest Mutations: Buries in sand, lose fins

Unlike all it's living relatives and some of its ancestors, the long tail has no spikes. It probably lost them as there was a lack of predators in their range; they live only in temperate estuaries, where the brackish water is just the right balance to suit their rather limited salt intake abilities. Overall, this is a relatively small area to live, but it is the only animal that lives here. The pectoral fins have become smaller, and more streamlined like a ray-finned fish; they are held against the body and composed of a cartilage limb branching off the vertebrae and three supports covered in skin. Muscles in the limb make it move, so this animal is faster than its ancestors.

Status: Unlisted

Habitat: Freshwater & Brackish Water in Subtropical Wet-Dry Barrens

Niche: Benthic Filter-Feeder

Size: 7cm (length)

Nutritional Need: (101NP/10) x 7/10 = 7.1NP

Food / Oxygen Requirement: (7.1 x 0.6) x 0.9 = 3.8NP /7.1 x 0.9 = 6.4NP

Abilities: Moderate UV Resistance. Osmoregulation (Brackish Tolerance), Circulation, Excretion.

Perception: Electroreception 1 (Senses electrical signals up to 1 body length away), Directional Light Sensing in front.

Stats: Respiration 2 (Cutaneous Respiration), Coordination 1. Digestion 1 (Can Break Down Multicellular Matter, 10% less), Immunity (Immunity Physical Barrier), Support 1.5, Intelligence 1. Walk Speed 0.7, Swim Speed 0.3, Stamina 3.5, Strength 1.5. Filtration 0.5.

Intelligence / Behaviour: Processes information and responds based on fixed behaviours. When feeling pain; duck into burrow. When hungry; filter the water. When ready to reproduce, sense for electrical signals of other adults and move towards them, then attempt to mate with the source. Bury tail into soft sediment.

External Features: The tapering body is covered in iridiphore pigments which give it a metallic blue sheen over the soft, permeable skin. It has a mouth and a pair of forward-facing cup eyes on the face. Along the length of the body are electroreceptors and there are also two pectoral ray-fins.

Internal Features: Three gill slits line just behind the head. An open circulatory system allows red blood to diffuse around the body. There is also a nephridium and the body is lined with muscle. Food enters the stomach and then the intestine belfry exiting the anus. A brain leads to a nerve cord with nerves running off like rungs on a ladder. The nerve cord is supported by a cartilage vertebrae. In the centre of the body is an oily liver and below this are the testes and ova.

Reproduction: Sexual, Ovuliparity (External Fertilisation). 1,000 eggs. Hermaphroditism.

Castes/Phases: None.

Locomotion: Anguilliforme (+1 Stamina). Crawling. Buoyancy Control.

External Features: Tapering body (0 + 0NP, +1 Stamina). Blue pigments (1 + 1NP, Moderate UV Resistance). Skin (2 + 1NP, Permeable Skin, Cutaneous Respiration, +1 Respiration, Immunity Physical Barrier). Mouth (0 + 0NP, +0.5 Filtration). Electroreceptors (1 + 1NP, +1 Electroreception). Cup Eyes (1 + 1NP, Direction Light Sensing). Pectoral Fins (4 + 0NP, +1 Agility, +0.2 Walking, -0.2 Speed).

Internal Features: Gills (3 + 1NP, +1 Respiration, +1 Stamina). Open Circulatory System (2 + 5NP, +Circulation, +0.5 Stamina). Nephridium (3 + 10NP, Osmoregulation, Excretion). Muscles (3 + 0NP, +0.5 Walk Speed, +0.5 Swim Speed, +0.5 Support, +0.5 Strength, Allows Crawling). Stomach (3 + 7NP, Can Break Down Multicellular Matter). Intestines (3 + 5NP, +1 Digestion). Brain and nerve network (6 + 14NP, +1 Coordination, +1 Intelligence). Cartilage Vertebrae (4NP, +1 Support, +1 Strength). Oily Liver (3 + 5NP). Testes (1 + 5NP). Ova (1 + 5NP).

Temporal Range: R.168 - Present (Nocturnus Stage of the Oliverian)

Distribution: One Estuary in Olympia

Lifespan: 1 year

Predecessor: Icthyotelus sinspica

Classification: Arencolusinae (sf), Charitomenchelusidae (f)

Discoverer: StealthStyle

## Arencolus communus

Latest Mutations: Brackish Tolerance

Status: Unlisted

Habitat: Brackish Water and Freshwater in Tropical Very Humid Barrens, Tropical Monsoon Barrens, Tropical Wet-Dry Barrens, Tropical Winter Semi-Arid Barrens, Subtropical Very Humid Barrens, Subtropical Monsoon Barrens, Subtropical Wet-Dry Barrens, Subtropical Winter Semi-Arid Barrens, Subtropical Arid Barrens, Subtropical Very Arid Barrens

Niche: Pelagic Filter-Feeder

Size: 7cm

Nutritional Need: 126 x 7/100 = 8.8NP

Food / Oxygen Requirement: 8.8 x 0.25 = 2.2NP per round (Needs to intake 2.2/0.7 = 3.1NP per round)/ 8.8 x 0.8 = 7NP

Characteristics: Adjustable Buoyancy. Small-Body Circulation. Liquid Excretion. Only Works Underwater; gills. Osmoregulation (Brackish Water and Freshwater). Passive Electroreception. Permeable Skin. Ram Ventilation. Startle. Stationary Respiration. Solid Excretion.

Perception: Electroreception 1 (detects movement at sides). Directional Light Sensing.

Stats: Buoyancy 1. Coordination 2. Digestion 2. Immunity 2. Filtration 1 (7/4 = 1.8x1 = 1.8). Respiration 2. Stamina 3. Strength 1. Swim Agility 1. Swim Speed 0.3. UV Resistance 2. Walk Speed 0.7.

Intelligence / Behaviour: Stimulus Response. Constantly = dig tail end into substrate. Hunger hormones = move around. Pain = move around. Move signal = carangiform. When tired = rest. Sense ??? right in front = swim through with mouth. Mating hormones = move around. ??? w/ mating hormones = reproduce.

External Features: The tapering body has blue melanin pigments in the skin. The circular mouth has chemoreceptors around it. On top of the head is a pair of cup eyes. Electroreceptors run along the flanks. It has a pair of pectoral fins.

Internal Features: Behind the head are three gill slits. It has a hemacoel. There are muscles across the body. It has a monogastric digestive system. It has a swim bladder, gonads and a large nephridium. Ganglia in the head connect to a single dorsal nerve cord.

Reproduction: Sexual Reproduction. External Fertilisation. 1,000 eggs per spawn.

Castes/Phases: Hermaphroditism.

Locomotion: Active (20NP). Anguillaform (+1 Stamina).

External Features: Tapering Body (+Anguillaform). Medium Pigmentation (2NP, +2 UV Resistance). Pectoral Fin (4NP, +1 Swim Agility, +0.2 Walk Speed, -0.2 Swim Speed, +Paddling, +Crawling). Skin (3NP, +1 Immunity, +1 Respiration, +1 Stamina, +Cutaneous Respiration, +Permeable Skin, +Stationary Respiration). Electroreceptors (2NP, +1 Electroreception). Mouth (0NP, +1 Filtration). Cup Eye (3NP, +Directional Light Sensing).

Internal Features: Gills (4NP, +1 Respiration, +1 Stamina, +Ram Ventilation, +Only Works Underwater). Open Circulatory System (3NP, +Small-Body Circulation, +1 Stamina). Muscular System (7NP, +1 Strength, +0.5 Walk Speed, +0.5 Swim Speed, +Wriggling). Monogastric Digestive System (18NP, +1 Meat Digestion, +1 Veg Protein Digestion, +1 Immunity, +Solid Excretion). Centralised Nervous System (20NP, +2 Coordination, +Stimulus Response). Oily Swim Bladder (7NP, +1 Buoyancy, +Adjustable Buoyancy). Gonads (14NP, +Sexual Reproduction, +Hermaphroditism, +External Fertilisation). Large Nephridium (19NP, +Liquid Excretion, +Osmoregulation)

Temporal Range: R. 197 - Present (Astathean Stage of the Oliverian)

Distribution: Olympia

Lifespan: 1-2 years

Predecessor: Arencolus tanoii

Classification: Arencolusinae (sf), Charitpmenchelusidae (f)

Discoverer: StealthStyle

## Arencolus ratzenbergerii

Latest Mutations: Aestivation

This is a simplistic, eel-shaped filter-feeder. It lives in the sediment of rivers and lakes in Olympia. It lives only in a single estuary that experiences wet and dry seasons. If it's water dries up, it will burrow underground and can enter a state of aestivation to survive.

Status: Unlisted

Habitat: Sediment in Brackish Water of Subtropical Wet-Dry Barrens

Niche: Filter-Feeder

Diet: Any fresh meat it can get.

Size: 7cm (length - head to tail)

Nutritional Need: 131 x 7/100 = 9.2NP

Food / Oxygen Requirement: 9.3 x 0.25 = 2.3P per round (Needs to intake 2.6/0.7 = 3.3NP per round)/ 9.3 x 0.9 = 8.3NP

Abilities: Exothermic. Liquid Excretion. Low Pressure Tolerance. Osmoregulation (Brackish and Freshwater). Permeable Skin. Small-Body Circulation. Solid Excretion.

Perception: Electroreception 1 (detects movement at sides). Senses direction of light.

Stats: Buoyancy 1 (Adjustable Buoyancy). Coordination 2. Digestion 2 (100% Meat, Digests 70%). Immunity 2. Filtration 1 (7/4 = 1.8x1 = 1.8). Respiration 2 (Stationary Ventilation, Ram Ventilation, 10% off). Stamina 4. Strength 2. Swim Agility 1. Swim Speed 0.5. Support 1. Toughness 0 (1 - spine). UV Resistance 2. Walk Agility 1. Walk Speed 0.5.

Intelligence / Behaviour: 1. Hungry > Wait for food. 2. Food > Filter with mouth. 3. Tired > Rest. 4. Pain > Duck beneath sediment. 5. Maturity > Reproduce. 6. Light on rear > Move rear to darkness. 7. When too dry > Burrow underground and enter aestivation.

External Features: The tapering body has skin containing blue carotenoid pigments and starts with a mouth. On top of the head is a pair of forward-facing cup eyes and three gill slits sit behind the head. There is a line of electroreceptors along the body.

Internal Features: Each cell in the body contains a relatively small number of piezolytes. It has a hemacoel and dorsal pump vessel that circulates blood, red because of hemoglobin, as well as a system of muscles. Near the lower wall can be found the gonads as well as the large protonephridium and it is lipid-rich. Through the mostly lower half runs the monogastric digestive system, from the mouth through the tubes to the stomach and intestines. Ganglia in the head connect to a single nerve cord along the dorsal half, which has many nerves branching off it to encompass the whole body. A cartilage vertebra runs along the back.

Reproduction: Sexual Reproduction. External Fertilisation. 1,000 eggs per spawn.

Castes/Phases: None.

Locomotion: Slightly Active (10NP). Moves body side to side in an anguillaform motion (+1 Stamina).

External Features: Tapering Body (0NP, +Anguillaform). Medium Pigmentation (2NP, +2 UV Resistance). Skin (6NP, +1 Immunity, +1 Respiration, +1 Stamina, +Stationary Respiration, +Cutaneous Respiration, +Permeable Skin). Mouth (0NP, +1 Filtration). Cup Eyes (2NP, +Direction of Light). Gills (4NP, +1 Respiration, +1 Stamina, +Ram Ventilation, +Only Works Underwater). Electroreceptors (2NP, +1 Electroreception).

Internal Features: Piezolytes (5NP, +Low Pressure Tolerance). Open Circulatory System w/ Pump Vessel (10NP, +Small-Body Circulation, +2 Stamina). Muscular System (7NP, +1 Strength, +0.5 Walk Speed, +0.5 Swim Speed, +Wriggling). Gonads (14NP, +Sexual Reproduction, +Hermaphroditism, +External Fertilisation). Large Nephridium (19NP, +Liquid Excretion, +Osmoregulation). Lipids (7NP, +1 Buoyancy, +Adjustable Buoyancy). Monogastric Digestive System (18NP, +1 Meat Digestion, +1 Veg Protein Digestion, +1 Immunity, +Solid Excretion). Centralised Nervous System (20NP, +2 Coordination). Cartilage Vertebrae (10NP, +1 Toughness, +1 Support, +1 Strength, +1 Swim Agility, +1 Walk Agility).

Temporal Range: R. 228 - Present (Atrobocean Stage of the Oliverian)

Distribution: Olympia

Lifespan: 1 year

Predecessor: Arencolus tanoii

Classification: Arencolusinae (sf), Charitomenchelusidae (f)

Discoverer: StealthStyle

## Arencolus brunnus

Latest Mutations: Brown

This is an Agnathan with a tapering body that filter-feeds from it's home in the sediment of rivers and lakes. It is brown so it fits in more with it's surroundings.

Status: Unlisted

Habitat: Brackish Water and Freshwater in Tropical Very Humid Barrens, Tropical Monsoon Barrens, Tropical Wet-Dry Barrens, Tropical Winter Semi-Arid Barrens, Subtropical Very Humid Barrens, Subtropical Monsoon Barrens, Subtropical Wet-Dry Barrens, Subtropical Winter Semi-Arid Barrens, Subtropical Arid Barrens, Subtropical Very Arid Barrens

Niche: Filter-Feeder

Diet: Any fresh meat it can get.

Size: 7cm (length - head to tail)

Nutritional Need: 141 x 7/100 = 9.9NP

Food / Oxygen Requirement: 9.9 x 0.25 = 2.5NP per round (Needs to intake 2.5/0.7 = 3.6NP per round)/ 9.9 x 0.9 = 8.9NP

Abilities: Exothermic. Liquid Excretion. Low Pressure Tolerance. Osmoregulation (Brackish and Freshwater). Permeable Skin. Small-Body Circulation. Solid Excretion.

Perception: Electroreception 1 (detects movement at sides). Sight 1 (sees blurrily above). Directional Light Sensing.

Stats: Buoyancy 1 (Adjustable Buoyancy). Coordination 2. Digestion 2 (100% Meat, Digests 70%). Immunity 2. Filtration 1 (7/4 = 1.8x1 = 1.8). Respiration 2 (Stationary Ventilation, Ram Ventilation, 10% off). Stamina 4. Strength 2. Swim Agility 1. Swim Speed 0.5. Support 1. Toughness 0 (1 - spine). UV Resistance 2. Walk Agility 1. Walk Speed 0.5.

Intelligence / Behaviour: 1. Hungry > Wait for food. 2. Food > Filter with mouth. 3. Tired > Rest. 4. Pain > Duck beneath sediment. 5. Maturity > Reproduce. 6. Light on rear > Move rear to darkness.

External Features: The tapering body has skin containing brown melanin pigments and starts with a mouth. On top of the head is a pair of forward-facing cup eyes and three gill slits sit behind the head. There is a line of electroreceptors along the body.

Internal Features: Each cell in the body contains a relatively small number of piezolytes. It has a hemacoel and dorsal pump vessel that circulates blood, red because of hemoglobin, as well as a system of muscles. Near the lower wall can be found the gonads as well as the large protonephridium and it is lipid-rich. Through the mostly lower half runs the monogastric digestive system, from the mouth through the tubes to the stomach and intestines. Ganglia in the head connect to a single nerve cord along the dorsal half, which has many nerves branching off it to encompass the whole body. A cartilage vertebra runs along the back.

Reproduction: Sexual Reproduction. External Fertilisation. 1,000 eggs per spawn.

Castes/Phases: None.

Locomotion: Active (20NP). Moves body side to side in an anguillaform motion (+1 Stamina).

External Features: Tapering Body (0NP, +Anguillaform). Medium Pigmentation (2NP, +2 UV Resistance). Skin (6NP, +1 Immunity, +1 Respiration, +1 Stamina, +Stationary Respiration, +Cutaneous Respiration, +Permeable Skin). Mouth (0NP, +1 Filtration). Cup Eyes (2NP, +Directional Light Sensing, +Binocular Vision). Gills (4NP, +1 Respiration, +1 Stamina, +Ram Ventilation, +Only Works Underwater). Electroreceptors (2NP, +1 Electroreception).

Internal Features: Piezolytes (5NP, +Low Pressure Tolerance). Open Circulatory System w/ Pump Vessel (10NP, +Small-Body Circulation, +2 Stamina). Muscular System (7NP, +1 Strength, +0.5 Walk Speed, +0.5 Swim Speed, +Wriggling). Gonads (14NP, +Sexual Reproduction, +Hermaphroditism, +External Fertilisation). Large Nephridium (19NP, +Liquid Excretion, +Osmoregulation). Lipids (7NP, +1 Buoyancy, +Adjustable Buoyancy). Monogastric Digestive System (18NP, +1 Meat Digestion, +1 Veg Protein Digestion, +1 Immunity, +Solid Excretion). Centralised Nervous System (20NP, +2 Coordination). Cartilage Vertebrae (10NP, +1 Toughness, +1 Support, +1 Strength, +1 Swim Agility, +1 Walk Agility).

Temporal Range: R. 239 - Present (Atrobocean Stage of the Oliverian)

Distribution: Olympia

Lifespan: 1 - 2 years

Predecessor: Arencolus communus

Classification: Arencolusinae (sf), Charitomenchelusidae (f)

Discoverer: StealthStyle

## Arencolus subterranius

Latest Mutations: Freshwater Tolerance

This was a simplistic, eel-shaped filter-feeder. It lived in the sediment of rivers and lakes in Olympia. It lived only in a single estuary that experienced wet and dry seasons. If it's water dried up, it would burrow underground and could enter a state of aestivation to survive.

Status: Extinct (Outcompeted)

Habitat: Sediment in Freshwater of Tropical Very Humid Barrens, Tropical Monsoon Barrens, Tropical Wet-Dry Barrens, Tropical Winter Semi-Arid Barrens, Tropical Arid Barrens, Subtropical Very Humid Barrens, Subtropical Monsoon Barrens, Subtropical Wet-Dry Barrens, Subtropical Winter Semi-Arid Barrens, Subtropical Arid Barrens, Subtropical Very Arid Barrens

Niche: Filter-Feeder

Diet: Any fresh meat it can get.

Size: 7cm (length - head to tail)

Nutritional Need: 131 x 7/100 = 9.2NP

Food / Oxygen Requirement: 9.3 x 0.25 = 2.3P per round (Needs to intake 2.6/0.7 = 3.3NP per round)/ 9.3 x 0.9 = 8.3NP

Abilities: Exothermic. Liquid Excretion. Low Pressure Tolerance. Osmoregulation (Freshwater). Permeable Skin. Small-Body Circulation. Solid Excretion.

Perception: Electroreception 1 (detects movement at sides). Senses direction of light.

Stats: Buoyancy 1 (Adjustable Buoyancy). Coordination 2. Digestion 2 (100% Meat, Digests 70%). Immunity 2. Filtration 1 (7/4 = 1.8x1 = 1.8). Respiration 2 (Stationary Ventilation, Ram Ventilation, 10% off). Stamina 4. Strength 2. Swim Agility 1. Swim Speed 0.5. Support 1. Toughness 0 (1 - spine). UV Resistance 2. Walk Agility 1. Walk Speed 0.5.

Intelligence / Behaviour: 1. Hungry > Wait for food. 2. Food > Filter with mouth. 3. Tired > Rest. 4. Pain > Duck beneath sediment. 5. Maturity > Reproduce. 6. Light on rear > Move rear to darkness. 7. When too dry > Burrow underground and enter aestivation.

External Features: The tapering body has skin containing blue carotenoid pigments and starts with a mouth. On top of the head is a pair of forward-facing cup eyes and three gill slits sit behind the head. There is a line of electroreceptors along the body.

Internal Features: Each cell in the body contains a relatively small number of piezolytes. It has a hemacoel and dorsal pump vessel that circulates blood, red because of hemoglobin, as well as a system of muscles. Near the lower wall can be found the gonads as well as the large protonephridium and it is lipid-rich. Through the mostly lower half runs the monogastric digestive system, from the mouth through the tubes to the stomach and intestines. Ganglia in the head connect to a single nerve cord along the dorsal half, which has many nerves branching off it to encompass the whole body. A cartilage vertebra runs along the back.

Reproduction: Sexual Reproduction. External Fertilisation. 1,000 eggs per spawn.

Castes/Phases: None.

Locomotion: Slightly Active (10NP). Moves body side to side in an anguillaform motion (+1 Stamina).

External Features: Tapering Body (0NP, +Anguillaform). Medium Pigmentation (2NP, +2 UV Resistance). Skin (6NP, +1 Immunity, +1 Respiration, +1 Stamina, +Stationary Respiration, +Cutaneous Respiration, +Permeable Skin). Mouth (0NP, +1 Filtration). Cup Eyes (2NP, +Direction of Light). Gills (4NP, +1 Respiration, +1 Stamina, +Ram Ventilation, +Only Works Underwater). Electroreceptors (2NP, +1 Electroreception).

Internal Features: Piezolytes (5NP, +Low Pressure Tolerance). Open Circulatory System w/ Pump Vessel (10NP, +Small-Body Circulation, +2 Stamina). Muscular System (7NP, +1 Strength, +0.5 Walk Speed, +0.5 Swim Speed, +Wriggling). Gonads (14NP, +Sexual Reproduction, +Hermaphroditism, +External Fertilisation). Large Nephridium (19NP, +Liquid Excretion, +Osmoregulation). Lipids (7NP, +1 Buoyancy, +Adjustable Buoyancy). Monogastric Digestive System (18NP, +1 Meat Digestion, +1 Veg Protein Digestion, +1 Immunity, +Solid Excretion). Centralised Nervous System (20NP, +2 Coordination). Cartilage Vertebrae (10NP, +1 Toughness, +1 Support, +1 Strength, +1 Swim Agility, +1 Walk Agility).

Temporal Range: R. 244 - R.245 (Samadaran Stage of the Oliverian)

Distribution: Olympia

Lifespan: 1 - 2 years

Predecessor: Arencolus ratzenbergerii

Classification: Arencolusinae (sf), Charitomenchelusidae (f)

Discoverer: StealthStyle