aplacophoran
Definition
- Noun:
- A deep-water, worm-like mollusk: An aplacophoran is a type of invertebrate animal that lives in deep ocean waters. Its body is elongated and resembles a worm.
- Characterized by a lack of calcareous plates and the presence of spicules: Unlike some other mollusks, it does not have a hard, calcareous shell or plates. Instead, its covering mantle has tiny, slimy, needle-like structures called spicules.
Usage Examples
- Noun:
- The biologist discovered a new species of aplacophoran near the hydrothermal vent.
- Aplacophorans are studied to understand the evolution of molluscan body plans.
Advanced Usage
- Scientific Classification: The term is often used in zoological and marine biology contexts. "Aplacophoran" can refer to any member of the class Aplacophora within the phylum Mollusca.
- The research paper compared the digestive systems of various aplacophorans.
Variants and Related Words
- Solenogaster (n): A common subgroup of aplacophorans. This term is often used more specifically.
- Most solenogasters are predators, feeding on cnidarians.
Synonyms
- Spicule-bearing mollusk: A descriptive synonym highlighting its key physical feature.
Noun
-
deep-water wormlike mollusks lacking calcareous plates on the body but having fine slimy spicules on the covering mantle
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