Hyalinella punctata (Hannock 1850)

Verder in Nederlands
Nederlands

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  4. Statoblasts

Proposal for common name: Dotted bryozoan or moss animal

Hyalinella punctata

Classification

Class Family Genus Species First described by
Phylactolaemata Plumatellidae Hyalinella H. punctata Hannock 1850

Synonyms

The following synonyms have been used to indicate Hyalinella punctata:

  1. Plumatella punctata (Hancock 1850)
  2. Plumatella vesicularis (Leidy 1854)
  3. Plumatella vitraea (Hyatt 1868)
  4. Hyalinella vesicularis (Jullien 1885)
  5. Hyalinella vitraea (Jullien 1885)
  6. Plumatella lophopoidea (Kafka 1885)
  7. Plumatella punctata (Kraepelin 1887)
  8. Hyalinella punctata (Loppens 1908)
  9. Stoltella indica (Annandale 1909)
  10. Stoltella himalayana (Annandale 1911)
  11. Plumatella auricomis (Annandale 1915)
  12. Plumatella (Hyalinella) bigemmis (Annandale 1919)
  13. Hyalinella punctata (Abrikosov 1927)
  14. Plumatella fungosa var. kamtschadalica (Abrikosov 1927)
  15. Plumatella incrustata (Abrikosov 1927)
  16. Plumatella longa (Abrikosov 1927)
  17. Plumatella repens var. minuta (Torumi 1941)
  18. Plumatella fruticosa (Marcus 1942)

Description

Also see the generic class and genus description in the classification page.
A combination of literature has been used to create this description.

General
  1. Hyalinella punctata lives in colonies that grow closely attached to the substrate
  2. A colony is only lightly branching and consist of thick cylindrical tubes that are closely aligned to the substrate
  3. The base is formed by branching tubular extensions that hold the polyps at regular (1 mm) distances. Zooids are in open connection with each other
  4. The zooids are relatively short and broad and are often tightly packed .
  5. The wall is transparent, jelly like and never chitinous
  6. Often distinctive cystid openings that are striped (ringed) all around .
  7. No separation walls (septa) between zooids, all zooids are closely in contact.
  8. Tubes that grow parallel are likely to adhere and merge
  9. Although the chitine zooicum is thick, soft and translucent it cannot be confused with the gelatinous species (like C. mucedo or P.magnifica) as the gelatinous species never form branching colonies
Color Clear, light colored to transparent
Tentacle crown Horseshoe shaped tentacle crown with 40 to 70 tentacles.
Size One zooid is 1 mm long
A colony maximum ?? cm in diameter
Statoblasts Both floating (floatoblasts) as sinking (sessoblasts) are formed.
Both are round without tubercles
The floatoblasts have a broad float ring
The statoblasts are found in the main tubes
Conditions Shallow edges of ponds
Distribution No information found in literature
Additional Rare

Relevant literature

To be completed

  1. [Mundy] - A key to the British and European Freshwater Bryozoans
  2. [Wood II] - A new key to the freshwater bryozoans of Britain, Ireland and Continental Europe

My observations

  1. None