Vai al contenuto

Species details



Home » Species details

DIVISION
Ochrophyta
CLASS
Coscinodiscophyceae
ORDER
Chaetocerotales
FAMILY
Attheyaceae
GENUS
Attheya
SPECIES
Attheya longicornis, R.M.Crawford, C.Gardner, 1994
IMAGES
Morphological Characteristics

Solitary cells or colonies. In girdle view, The cell is rectangular or square. The thin bristles (0.2-0.5µm thick) sprout from the extremity of the cell, initially parallel to the pervalvar axis and subsequently changing direction. They are slightly undulating, and can be up to 10 times longer than the cell. The valves are elliptic, flat or slightly concave, with an annulus on the surface. On the mantle are radial ribs. The rimoportula is absent.

Morphological Data
Distinctive morphometric characters
  • Pervalvar Axis: from 7 to 28 µm
  • Cell Diameter: from 3 to 16 µm
Distribution

Marine species.

Distribution: Europe: Britain (Silva, 1996).

Notes

This species is epiphytic on Chaetoceros, Skeletonema and other algal genera.

Toxicity:

Not reported.

Resistence Stages:

Not reported.

References

Index Nominum Algarum, University Herbarium, University of California, Berkeley. http://ucjeps.berkeley.edu/INA.html., , Silva P.C., 1996,

SHAPE
Shape Type
simple
Shape Unit
Cell
Cod:
8 - Prism on elliptic base
Surface Area
Calculate Formula
formula image
Volume
Calculate Formula
formula image
shape image