Noun:

ஒட்டும் இழை நார்கள்,

byssus's Usage Examples:

Placuna; byssus atrophied in adult.

This byssus is not homologous with that of other Lamellibranchs, but originates from a single glandular epithelial cell embedded in the tissues on the dorsal anterior side of the adductor muscle.

In them the foot has a flat ventral surface used for creeping, as in Gastropods, the byssus gland is but slightly developed, the pleural ganglia are distinct, there is a relic of the pharyngeal cavity, in some forms with a pair of glandular sacs, the gonads retain their primitive connexion with the renal cavities, and the otocysts are open.

-Foot small; inferior (right) valve of adult perforated to allow passage of the byssus.

Lima; members of this genus form a nest by means of the byssus, or swim by clapping the valves of the shell together.

The foot has a byssus gland on its posterior surface.

-Shell high; hinge toothless; foot without byssus.

A very few have the power of swimming by opening and shutting the valves of the shell (Pecten, Lima); most can crawl slowly or burrow rapidly; others are, when adult, permanently fixed to stones or rocks either by the shell or the byssus.

-Shell concentrically striated; foot elongate, without byssus.

Anomia; byssus large and calcified; British.

The glochidium quits the gillpouch of its parent and swims by alternate opening and shutting of the valves of its shell, as do adult Pecten and Lima, trailing at the same time a long byssus thread.

lagoon cockles have byssus threads and I found juveniles often attached to seaweeds and other substrates.

"Placuna; byssus atrophied in adult.

Synonyms:

fibre, beard, fiber,

Antonyms:

unthoughtfulness, irresponsibleness, irresponsibility,