27. 11. 2012. Sur ir ella : : Diat om s of t he Unit ed St at es

1/ 3west er ndiat om s. color ado. edu/ t axa/ genus/ sur ir ella

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Surirella

Turpin 1828 Category: Surirelloid (http://westerndiatoms.colorado.edu/taxa/morphology/surirelloid)

TYPE SPECIES: Surirella striatula Turpin

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27. 11. 2012. Sur ir ella : : Diat om s of t he Unit ed St at es

2/ 3west er ndiat om s. color ado. edu/ t axa/ genus/ sur ir ella

(/images/genus_guide_images/Surirella_guide.jpg)

Image Credit: Elizabeth Ruck

CLASS: Bacillariophyceae

ORDER: Surirellales

FAMILY: Surirellaceae

1. Frustules isopolar or heteropolar

2. Raphe positioned along entire valve margin

3. Raphe located within a canal, which may be raised

above valve surface

Cells of Surirella grow as single, isolated cells. The

frustules may be either isopolar or heteropolar. Like

other genera with in the family Surirellaceae, the

raphe system is positioned along the margin of the

valve. The raphe is located within a canal, which may

be raised above the valve surface in some species.

Cells may be highly silicified, with spines and silica

nodules on the valve surface.

Species in Surirella are common in the benthos,

especially epipelic habitats, across a wide range of

water chemistry. Cells may be relatively small, to

very large (a few hundred micrometers), depending

on the species. Because of the extensive raphe

system species of Surirella have high motility as compared to other diatom genera. They are able to live within sand grains

and fine sediment, and can move through the sediment by means of the raphe system.

Species (#tabs-species) Genus Description (#tabs-genus-description) Citations/Links (#tabs-citations-links)

27. 11. 2012. Sur ir ella : : Diat om s of t he Unit ed St at es

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Cite This Page:

Spaulding, S., and Edlund, M. (2010). Surirella. In Diatoms of the United States. Retrieved November 26, 2012, from

http://westerndiatoms.colorado.edu/taxa/genus/surirella

Contributor: Sarah Spaulding (http://westerndiatoms.colorado.edu/about/participant/spaulding_sarah) | Mark Edlund

(http://westerndiatoms.colorado.edu/about/participant/edlund_mark) - June 2010

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