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Notobranchaeidae
The Notobranchaeidae, or "naked sea butterflies", are a taxonomic family of floating sea slugs, specifically under the subclass Opistobranchia, also called "sea angels". Similar to other Pteropods, these pelagic marine heterobranch gastropod mollusks are holoplanktonic. Morphology While they are not particularly strong swimmers, the foot of these organisms is modified into wing-like structures, called parapodia that they employ for locomotion. Additionally, like other Pteropods of the order Gymnosomata, Notobrachaeidae lack shells entirely as adults.Pierrot-Bults, Annelies & Peijnenburg, K. (2015). Pteropods. Encyclopedia of marine geosciences. 1-10. However, they do possess a shell earlier on in their lives. They are also defined by how they possess a posterior gill, strong jaws, grasping tentacles that frequently possess suckers resembling those of cephalopods, and usually buccal cones as well. Behavior Like other members of the clade Gymnosomata, Notobrachaeidae are highly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notobranchaeidae
The Notobranchaeidae, or "naked sea butterflies", are a taxonomic family of floating sea slugs, specifically under the subclass Opistobranchia, also called "sea angels". Similar to other Pteropods, these pelagic marine heterobranch gastropod mollusks are holoplanktonic. Morphology While they are not particularly strong swimmers, the foot of these organisms is modified into wing-like structures, called parapodia that they employ for locomotion. Additionally, like other Pteropods of the order Gymnosomata, Notobrachaeidae lack shells entirely as adults.Pierrot-Bults, Annelies & Peijnenburg, K. (2015). Pteropods. Encyclopedia of marine geosciences. 1-10. However, they do possess a shell earlier on in their lives. They are also defined by how they possess a posterior gill, strong jaws, grasping tentacles that frequently possess suckers resembling those of cephalopods, and usually buccal cones as well. Behavior Like other members of the clade Gymnosomata, Notobrachaeidae are highly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notobranchaea Valdiviae
The Notobranchaeidae, or "naked sea butterflies", are a taxonomic family of floating sea slugs, specifically under the subclass Opistobranchia, also called " sea angels". Similar to other Pteropods, these pelagic marine heterobranch gastropod mollusks are holoplanktonic. Morphology While they are not particularly strong swimmers, the foot of these organisms is modified into wing-like structures, called parapodia that they employ for locomotion. Additionally, like other Pteropods of the order Gymnosomata, Notobrachaeidae lack shells entirely as adults.Pierrot-Bults, Annelies & Peijnenburg, K. (2015). Pteropods. Encyclopedia of marine geosciences. 1-10. However, they do possess a shell earlier on in their lives. They are also defined by how they possess a posterior gill, strong jaws, grasping tentacles that frequently possess suckers resembling those of cephalopods, and usually buccal cones as well. Behavior Like other members of the clade Gymnosomata, Notobrachaeidae are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notobranchaea Tetrabranchiata
The Notobranchaeidae, or "naked sea butterflies", are a taxonomic family of floating sea slugs, specifically under the subclass Opistobranchia, also called " sea angels". Similar to other Pteropods, these pelagic marine heterobranch gastropod mollusks are holoplanktonic. Morphology While they are not particularly strong swimmers, the foot of these organisms is modified into wing-like structures, called parapodia that they employ for locomotion. Additionally, like other Pteropods of the order Gymnosomata, Notobrachaeidae lack shells entirely as adults.Pierrot-Bults, Annelies & Peijnenburg, K. (2015). Pteropods. Encyclopedia of marine geosciences. 1-10. However, they do possess a shell earlier on in their lives. They are also defined by how they possess a posterior gill, strong jaws, grasping tentacles that frequently possess suckers resembling those of cephalopods, and usually buccal cones as well. Behavior Like other members of the clade Gymnosomata, Notobrachaeidae are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notobranchaea Macdonaldi
The Notobranchaeidae, or "naked sea butterflies", are a taxonomic family of floating sea slugs, specifically under the subclass Opistobranchia, also called " sea angels". Similar to other Pteropods, these pelagic marine heterobranch gastropod mollusks are holoplanktonic. Morphology While they are not particularly strong swimmers, the foot of these organisms is modified into wing-like structures, called parapodia that they employ for locomotion. Additionally, like other Pteropods of the order Gymnosomata, Notobrachaeidae lack shells entirely as adults.Pierrot-Bults, Annelies & Peijnenburg, K. (2015). Pteropods. Encyclopedia of marine geosciences. 1-10. However, they do possess a shell earlier on in their lives. They are also defined by how they possess a posterior gill, strong jaws, grasping tentacles that frequently possess suckers resembling those of cephalopods, and usually buccal cones as well. Behavior Like other members of the clade Gymnosomata, Notobrachaeidae are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notobranchaea Longicollis
The Notobranchaeidae, or "naked sea butterflies", are a taxonomic family of floating sea slugs, specifically under the subclass Opistobranchia, also called " sea angels". Similar to other Pteropods, these pelagic marine heterobranch gastropod mollusks are holoplanktonic. Morphology While they are not particularly strong swimmers, the foot of these organisms is modified into wing-like structures, called parapodia that they employ for locomotion. Additionally, like other Pteropods of the order Gymnosomata, Notobrachaeidae lack shells entirely as adults.Pierrot-Bults, Annelies & Peijnenburg, K. (2015). Pteropods. Encyclopedia of marine geosciences. 1-10. However, they do possess a shell earlier on in their lives. They are also defined by how they possess a posterior gill, strong jaws, grasping tentacles that frequently possess suckers resembling those of cephalopods, and usually buccal cones as well. Behavior Like other members of the clade Gymnosomata, Notobrachaeidae are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notobranchaea Inopinata
The Notobranchaeidae, or "naked sea butterflies", are a taxonomic family of floating sea slugs, specifically under the subclass Opistobranchia, also called " sea angels". Similar to other Pteropods, these pelagic marine heterobranch gastropod mollusks are holoplanktonic. Morphology While they are not particularly strong swimmers, the foot of these organisms is modified into wing-like structures, called parapodia that they employ for locomotion. Additionally, like other Pteropods of the order Gymnosomata, Notobrachaeidae lack shells entirely as adults.Pierrot-Bults, Annelies & Peijnenburg, K. (2015). Pteropods. Encyclopedia of marine geosciences. 1-10. However, they do possess a shell earlier on in their lives. They are also defined by how they possess a posterior gill, strong jaws, grasping tentacles that frequently possess suckers resembling those of cephalopods, and usually buccal cones as well. Behavior Like other members of the clade Gymnosomata, Notobrachaeidae are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notobranchaea Hjorti
The Notobranchaeidae, or "naked sea butterflies", are a taxonomic family of floating sea slugs, specifically under the subclass Opistobranchia, also called " sea angels". Similar to other Pteropods, these pelagic marine heterobranch gastropod mollusks are holoplanktonic. Morphology While they are not particularly strong swimmers, the foot of these organisms is modified into wing-like structures, called parapodia that they employ for locomotion. Additionally, like other Pteropods of the order Gymnosomata, Notobrachaeidae lack shells entirely as adults.Pierrot-Bults, Annelies & Peijnenburg, K. (2015). Pteropods. Encyclopedia of marine geosciences. 1-10. However, they do possess a shell earlier on in their lives. They are also defined by how they possess a posterior gill, strong jaws, grasping tentacles that frequently possess suckers resembling those of cephalopods, and usually buccal cones as well. Behavior Like other members of the clade Gymnosomata, Notobrachaeidae are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notobranchaea Grandis
The Notobranchaeidae, or "naked sea butterflies", are a taxonomic family of floating sea slugs, specifically under the subclass Opistobranchia, also called " sea angels". Similar to other Pteropods, these pelagic marine heterobranch gastropod mollusks are holoplanktonic. Morphology While they are not particularly strong swimmers, the foot of these organisms is modified into wing-like structures, called parapodia that they employ for locomotion. Additionally, like other Pteropods of the order Gymnosomata, Notobrachaeidae lack shells entirely as adults.Pierrot-Bults, Annelies & Peijnenburg, K. (2015). Pteropods. Encyclopedia of marine geosciences. 1-10. However, they do possess a shell earlier on in their lives. They are also defined by how they possess a posterior gill, strong jaws, grasping tentacles that frequently possess suckers resembling those of cephalopods, and usually buccal cones as well. Behavior Like other members of the clade Gymnosomata, Notobrachaeidae are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Notobranchaea Bleekerae
The Notobranchaeidae, or "naked sea butterflies", are a taxonomic family of floating sea slugs, specifically under the subclass Opistobranchia, also called " sea angels". Similar to other Pteropods, these pelagic marine heterobranch gastropod mollusks are holoplanktonic. Morphology While they are not particularly strong swimmers, the foot of these organisms is modified into wing-like structures, called parapodia that they employ for locomotion. Additionally, like other Pteropods of the order Gymnosomata, Notobrachaeidae lack shells entirely as adults.Pierrot-Bults, Annelies & Peijnenburg, K. (2015). Pteropods. Encyclopedia of marine geosciences. 1-10. However, they do possess a shell earlier on in their lives. They are also defined by how they possess a posterior gill, strong jaws, grasping tentacles that frequently possess suckers resembling those of cephalopods, and usually buccal cones as well. Behavior Like other members of the clade Gymnosomata, Notobrachaeidae are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Angels
Sea angels (clade Gymnosomata) are a large group of small free-swimming sea slugs, not to be confused with Cnidarians (Jellyfish and other similar creatures), classified into six different families. They are pelagic opisthobranchs in the clade Gymnosomata within the larger mollusc clade Heterobranchia. Sea angels were previously referred to as a type of pteropod. Sea angels are also sometimes known as "cliones" but this is potentially misleading because the family Clionidae is just one of the families within this clade. Recent molecular data suggest the Gymnosomata form a sister group to the Thecosomata (other planktonic, weakly or nonmineralized gastropods), but this long-standing hypothesis has also had some recent detractors. Fossils of the group go back to the Middle Frasnian stage of the Late Devonian period. Distribution These organisms have a wide geographic range, from polar regions, under sea ice, to equatorial (tropic) seas. Description In this clade, the foot of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gymnosomata
Sea angels ( clade Gymnosomata) are a large group of small free-swimming sea slugs, not to be confused with Cnidarians (Jellyfish and other similar creatures), classified into six different families. They are pelagic opisthobranchs in the clade Gymnosomata within the larger mollusc clade Heterobranchia. Sea angels were previously referred to as a type of pteropod. Sea angels are also sometimes known as "cliones" but this is potentially misleading because the family Clionidae is just one of the families within this clade. Recent molecular data suggest the Gymnosomata form a sister group to the Thecosomata (other planktonic, weakly or nonmineralized gastropods), but this long-standing hypothesis has also had some recent detractors. Fossils of the group go back to the Middle Frasnian stage of the Late Devonian period. Distribution These organisms have a wide geographic range, from polar regions, under sea ice, to equatorial (tropic) seas. Description In this clade, the foo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latitude
In geography, latitude is a coordinate that specifies the north– south position of a point on the surface of the Earth or another celestial body. Latitude is given as an angle that ranges from –90° at the south pole to 90° at the north pole, with 0° at the Equator. Lines of constant latitude, or ''parallels'', run east–west as circles parallel to the equator. Latitude and ''longitude'' are used together as a coordinate pair to specify a location on the surface of the Earth. On its own, the term "latitude" normally refers to the ''geodetic latitude'' as defined below. Briefly, the geodetic latitude of a point is the angle formed between the vector perpendicular (or ''normal'') to the ellipsoidal surface from the point, and the plane of the equator. Background Two levels of abstraction are employed in the definitions of latitude and longitude. In the first step the physical surface is modeled by the geoid, a surface which approximates the mean sea level over the ocean ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
