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Unio Reference Libraries

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Swollen River Mussel Unio tumidus
2013-04-26 14:43:49

The Swollen River Mussel, Unio Tumidus, is a species of freshwater mussel, an aquatic bivalve mollusk belonging to the family Unionidae, the river mussels. Its native distribution is European. The distribution range also includes Croatia, Czech Republic, Germany, British Isles, Sweden, Poland, Slovakia, Lithuania, Netherlands, and Latvia. Image Caption: Shell of Unio tumidus from the...

Painters Mussel Unio pictorum
2013-04-26 14:39:42

The Painter’s Mussel, Unio Pictorum, is a species of medium-sized freshwater mussel, an aquatic bivalve mollusk belonging to the family Unionidae, the river mussels. This species resides in Europe. It’s called the “painter’s mussel” because the shell was historically utilized as a conveniently sized and shaped receptacle for holding artist’s paint. Its native distribution is...

Swan Mussel Anodonta cygnea
2013-04-25 20:12:34

The Swan Mussel, Anodonta Cygnea, is a large species of freshwater mussel, an aquatic bivalve mollusk belonging to the family Unionidae, the river mussels. Due to its morphological variability and its wide range of distribution, there are over 500 synonyms for this species. The shell is thin but it is large and rather flat, even at the umbo. The coloration of the shell is often pale...

Thick-shelled River Mussel
2008-04-30 23:16:51

The Thick-shelled River Mussel, (Unio crassus), is a mussel of the family Unionidae. The Thick-shelled River Mussel declined in the beginning of the 20th century everywhere in Europe due to deteriorating water quality. As part of newly discovered reproductive behavior, this mollusc crawls up to the edge of the water, exposing its excurrent aperture, and then lets loose a stream of water. The...

Word of the Day
swell-mobsman
  • A member of the swell-mob; a genteelly clad pickpocket. Sometimes mobsman.
Use of the word 'swell-mobsman' dates at least to the early 1800s.