Thecosomata

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Close up of books. Stack of books, pile of books, literature, reading. Homepage 2010, arts and entertainment, history and society

12 Novels Considered the “Greatest Book Ever Written”

Rural Irish landscape, Sligo, Ireland.

Why Is Ireland Two Countries?

Mayer Amschel Rothschild (1744-1855), founder of the house of Rothschild; lithograph by Friedrich Lieder, c. 1830.

Where Do Anti-Semitic Conspiracy Theories About the Rothschild Family Come From?

Diverse elementary school children wearing school uniforms running outside of school. Boys girls

Pro and Con: School Uniforms

Baseball laying in the grass. Homepage blog 2010, arts and entertainment, history and society, sports and games athletics

10 Greatest Baseball Players of All Time

New York NY/ USA- November 23, 2018 Hordes of shoppers throng the Macy's Herald Square flagship store in New York looking for bargains on the day after Thanksgiving, Black Friday.

Why Is It Called Black Friday?

Woman tied to a ducking stool, a method of punishment by means of humiliation, beating, or death. (cucking stool)

8 Unusual Punishments Inflicted on Women Throughout History

Thecosomata

gastropod order

Learn about this topic in these articles:

annotated classification

In gastropod: Classification
Order Thecosomata Shell present; pelagic ciliary feeders; no gill; 6 families. Order Gymnosomata Shell absent; no mantle cavity; complicated feeding mechanisms; pelagic carnivores; 7 families. Order Nudibranchia Sea slugs without shell, mantle cavity, osphradium, or
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pteropods

In pteropod
…and mucus constitute the order Thecosomata. The shell is delicate and translucent; contrasting forms are seen in the straight-needle pteropod (Creseis acicula), the coiled pteropod (Limacina species), and the long-snouted pteropod (Cavolina longirostris).
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