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Sharks

Sand Devil (Squatina dumeril)

Sand Devil (Squatina dumeril)

Comparison illustration of the size of a Sand Devil to a typical personComparison illustration of the size of a Sand Devil to a typical person
Description
Description

The physical characteristics of the Sand Devil (Squatina dumeril) make it resemble skates. It usually has wide pectoral and pelvic fins, a flattened body, a small dorsal fin, an asymmetric caudal fin, and no anal fin. In the middle of its back is a band of enlarged thorns. The upper part of the body is gray with some reddish shading, while underneath is white. These bottom-dwellers rely on camouflage to ambush prey like small invertebrates and bottom-dwelling fish. It is also called Atlantic angel shark or monkfish. This fish is viviparous, rarely aggressive, has no commercial value, and is commonly found in the northwestern Atlantic ocean.

Dimensions & Sizes
Dimensions & Sizes

Sand Devils have a total length between 47”-59” (119-150 cm) and body width of 27.2”-33.1” (69-84 cm). The typical weight of the Sand Devil is in the range of 27-35 lb (12-16 kg). Sand Devils have lifespans between 25-35 years.

Scaled collection of drawings of Sand Devil in various poses
Description
Description

The physical characteristics of the Sand Devil (Squatina dumeril) make it resemble skates. It usually has wide pectoral and pelvic fins, a flattened body, a small dorsal fin, an asymmetric caudal fin, and no anal fin. In the middle of its back is a band of enlarged thorns. The upper part of the body is gray with some reddish shading, while underneath is white. These bottom-dwellers rely on camouflage to ambush prey like small invertebrates and bottom-dwelling fish. It is also called Atlantic angel shark or monkfish. This fish is viviparous, rarely aggressive, has no commercial value, and is commonly found in the northwestern Atlantic ocean.

Dimensions & Sizes
Dimensions & Sizes

Sand Devils have a total length between 47”-59” (119-150 cm) and body width of 27.2”-33.1” (69-84 cm). The typical weight of the Sand Devil is in the range of 27-35 lb (12-16 kg). Sand Devils have lifespans between 25-35 years.

3D Model
3D Model
Common Questions
Common Questions
Sharks
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Sharks
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How many bones do sharks have?
Sharks do not have any bones in their bodies, as their skeleton system is made up of cartilage and connective tissue. This classifies them as Chondrichthyes fish. Cartilage is flexible and has about half of the normal density found in bones.
What do sharks eat?
The diet of a shark varies from shark to shark depending on the species, habitat, and available prey. There are over 400 species of sharks. Most sharks are carnivorous and predators, while some are planktivorous. Sharks aren’t picky and are able to adjust their diet to what is available in order to survive.

How do sharks sleep?
It is not known if sharks are able to sleep, but they do seem to have periods of rest. Sharks need to keep water moving over their gills to receive oxygen. Some sharks need to keep moving all the times to keep water over their gills, while others have spiracles, an opening behind each eye, that allows them to breath while they are still.
How many bones do sharks have?
Sharks do not have any bones in their bodies, as their skeleton system is made up of cartilage and connective tissue. This classifies them as Chondrichthyes fish. Cartilage is flexible and has about half of the normal density found in bones.
What do sharks eat?
The diet of a shark varies from shark to shark depending on the species, habitat, and available prey. There are over 400 species of sharks. Most sharks are carnivorous and predators, while some are planktivorous. Sharks aren’t picky and are able to adjust their diet to what is available in order to survive.

How do sharks sleep?
It is not known if sharks are able to sleep, but they do seem to have periods of rest. Sharks need to keep water moving over their gills to receive oxygen. Some sharks need to keep moving all the times to keep water over their gills, while others have spiracles, an opening behind each eye, that allows them to breath while they are still.
Cartilaginous Fish
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Cartilaginous Fish
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How are cartilaginous fish different from bony fish?
Cartilaginous fish are different from bony fish through their skeletons that are made of mostly cartilage as opposed to bony fish which have skeletons composed mostly of bone. Both cartilaginous and bony fish fall under different types of taxonomic groups. Cartilaginous fish are part of the Chondrichthyes while bony fish are of the Osteichthyes class.
How do cartilaginous fish maintain buoyancy?
Cartilaginous fish maintain their buoyancy through their liver which is filled with oil. The oil within their liver helps cartilaginous fish lighten their body to keep it from sinking downwards into the body of water, while also helping the fish save energy to keep moving and direct themselves.
Do cartilaginous fish have jaws?
Cartilaginous fish have movable jaws that are equipped with fully developed teeth. The mouth of cartilaginous fish is typically located under their head. Cartilaginous fish only have one set of oral jaws that are made of cartilage. The jaws of cartilaginous fish are articulated and opposed vertically.
How are cartilaginous fish different from bony fish?
Cartilaginous fish are different from bony fish through their skeletons that are made of mostly cartilage as opposed to bony fish which have skeletons composed mostly of bone. Both cartilaginous and bony fish fall under different types of taxonomic groups. Cartilaginous fish are part of the Chondrichthyes while bony fish are of the Osteichthyes class.
How do cartilaginous fish maintain buoyancy?
Cartilaginous fish maintain their buoyancy through their liver which is filled with oil. The oil within their liver helps cartilaginous fish lighten their body to keep it from sinking downwards into the body of water, while also helping the fish save energy to keep moving and direct themselves.
Do cartilaginous fish have jaws?
Cartilaginous fish have movable jaws that are equipped with fully developed teeth. The mouth of cartilaginous fish is typically located under their head. Cartilaginous fish only have one set of oral jaws that are made of cartilage. The jaws of cartilaginous fish are articulated and opposed vertically.
Fish
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Fish
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What do fish eat?
The diet of fish is very diverse as the number of fish species is very large. Some fish are carnivores, while other species of fish are herbivores or omnivores. Fish generally eat small organisms, algae, and sometimes can even eat other fish. The food that fish eat depends on their species, size, and environment.
How long do fish live?
The lifespan of a fish usually depends on the species. A fish may live anywhere between a year to 200 years – it all depends on the species of fish. The lifespan of a fish typically depends on their size, species, and whether they live in the wild or captivity.
How do fish sleep?
Fish do not sleep in the same form and manner that land mammals sleep. Fish sleep by reducing their activity and metabolism while remaining alert to any potential danger. While sleeping some fish float in place, in a secure spot within the mud, or find a nest. During sleep, fish perform restorative functions.
What do fish eat?
The diet of fish is very diverse as the number of fish species is very large. Some fish are carnivores, while other species of fish are herbivores or omnivores. Fish generally eat small organisms, algae, and sometimes can even eat other fish. The food that fish eat depends on their species, size, and environment.
How long do fish live?
The lifespan of a fish usually depends on the species. A fish may live anywhere between a year to 200 years – it all depends on the species of fish. The lifespan of a fish typically depends on their size, species, and whether they live in the wild or captivity.
How do fish sleep?
Fish do not sleep in the same form and manner that land mammals sleep. Fish sleep by reducing their activity and metabolism while remaining alert to any potential danger. While sleeping some fish float in place, in a secure spot within the mud, or find a nest. During sleep, fish perform restorative functions.
Oceanic | Marine Animals
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Oceanic | Marine Animals
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What do marine animals need to survive?
Factors that marine animals need to survive include bioluminescence which is when animals make their own light and helps them communicate and scare predators. Constant light, pressure, temperature, and food are factors needed to remain stable and help marine animals evolve to survive. Marine animals that live within the deep sea can withstand the cold.
Why do we need to protect marine life?
Humans need to protect marine life because our actions and lifestyles have a direct impact on the ocean. We need to protect marine life and provide a safe and healthy environment that is not impacted by overfishing, climate change, pollution, habitat destruction, invasive species, and other forms of human exploitation.
What is the most common animal in the ocean?
The most common animal in the ocean is the bristlemouth which is a vertebrate, an animal with a backbone. The bristlemouth is a tiny fish that can glow in the dark and has fangs that resemble needles. Bristlemouths are part of the 1 million species of animals that live in the ocean.
What do marine animals need to survive?
Factors that marine animals need to survive include bioluminescence which is when animals make their own light and helps them communicate and scare predators. Constant light, pressure, temperature, and food are factors needed to remain stable and help marine animals evolve to survive. Marine animals that live within the deep sea can withstand the cold.
Why do we need to protect marine life?
Humans need to protect marine life because our actions and lifestyles have a direct impact on the ocean. We need to protect marine life and provide a safe and healthy environment that is not impacted by overfishing, climate change, pollution, habitat destruction, invasive species, and other forms of human exploitation.
What is the most common animal in the ocean?
The most common animal in the ocean is the bristlemouth which is a vertebrate, an animal with a backbone. The bristlemouth is a tiny fish that can glow in the dark and has fangs that resemble needles. Bristlemouths are part of the 1 million species of animals that live in the ocean.
Details
Details

*Under Development*

Height:
Width:
27.2”-33.1” | 69-84 cm
Depth:
Length:
47”-59” | 119-150 cm
:
:
Weight:
27-35 lb | 12-16 kg
Area:
:
Speed:
Scientific Name:
Squatina dumeril
Lifespan:
25-35 years

Drawings include:

Sand Devil side elevation, side (perspective), front, top

Links
Links

Wikipedia - Sand Devil

Wikipedia - Shark
WWF - Shark

Related Collections
Related Collections
Sharks
Cartilaginous Fish
Fish
Oceanic | Marine Animals
Related Tags
Related Tags
Aquatic Biome
Updated on
June 8, 2022
Guides
Guides

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