Definition of Larvacea in English:

Larvacea

plural nounlɑːˈveɪʃəlärˈvāSHēə

Zoology

A class of minute transparent planktonic animals related to the sea squirts. They have a body that is typically enclosed in a gelatinous ‘house’ that is regularly shed and replaced.
〔动〕幼形纲
Example sentencesExamples
- Within the urochordates, both genes placed Oikopleura (class Larvacea) as the sister group to all other urochordates.

Derivatives

larvacean

adjective & noun

Zoology

Ascidians and thaliaceans (which, along with the larvaceans, comprise the subphylum Urochordata) display a biphasic life-history with morphologically dissimilar larval and adult body plans.
Example sentencesExamples
- Comparisons of rotifer SL RNA sequences with those of nonnematode species, e.g., cestode or larvacean, showed no similarity (data not shown).
- The larvaceans - free-floating sea squirts that look a bit like tadpoles - live inside the diaphanous mucus nets.
- This supposition is largely based on data which suggests that, within the urochordates, the directly developing larvaceans are most primitive and the other two chordate subphyla are exclusively directly developing.
- Other more sophisticated jelly creatures include some mollusks and snails, and tunicates - sea squirts, salps and larvaceans.

Origin

Modern Latin (plural), from larva.

Definition of Larvacea in US English:

Larvacea

plural nounlärˈvāSHēə

Zoology

A class of minute transparent planktonic animals related to the sea squirts. They have a body that is typically enclosed in a gelatinous “house” that is regularly shed and replaced.
〔动〕幼形纲
Example sentencesExamples
- Within the urochordates, both genes placed Oikopleura (class Larvacea) as the sister group to all other urochordates.

Origin

Modern Latin (plural), from larva.

单词	Larvacea
释义	Definition of Larvacea in English: Larvacea plural nounlɑːˈveɪʃəlärˈvāSHēə Zoology A class of minute transparent planktonic animals related to the sea squirts. They have a body that is typically enclosed in a gelatinous ‘house’ that is regularly shed and replaced. 〔动〕幼形纲 Example sentencesExamples Within the urochordates, both genes placed Oikopleura (class Larvacea) as the sister group to all other urochordates. Derivatives larvacean adjective & noun Zoology Ascidians and thaliaceans (which, along with the larvaceans, comprise the subphylum Urochordata) display a biphasic life-history with morphologically dissimilar larval and adult body plans. Example sentencesExamples Comparisons of rotifer SL RNA sequences with those of nonnematode species, e.g., cestode or larvacean, showed no similarity (data not shown). The larvaceans - free-floating sea squirts that look a bit like tadpoles - live inside the diaphanous mucus nets. This supposition is largely based on data which suggests that, within the urochordates, the directly developing larvaceans are most primitive and the other two chordate subphyla are exclusively directly developing. Other more sophisticated jelly creatures include some mollusks and snails, and tunicates - sea squirts, salps and larvaceans. Origin Modern Latin (plural), from larva. Definition of Larvacea in US English: Larvacea plural nounlärˈvāSHēə Zoology A class of minute transparent planktonic animals related to the sea squirts. They have a body that is typically enclosed in a gelatinous “house” that is regularly shed and replaced. 〔动〕幼形纲 Example sentencesExamples Within the urochordates, both genes placed Oikopleura (class Larvacea) as the sister group to all other urochordates. Origin Modern Latin (plural), from larva.
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