Haptolina ericina

Taxonomy:

Catalog entries: Chrysochromulina ericina

Original description: Motile cells usually ovoidal to nearly oblong, very slightly flattened in one plane, showing marked metaboly, 6-10 (exceptionally 5-12) µm in length, 5-8 (exceptionally 4-10) µm in breadth; flagellar pole obliquely truncated with a slight, almost central depression. Two flagella and one haptonema arising close together not quite centrally from the depression: the flagella equal, homodynamic, 2-2.5 times body length, smooth, gradually attenuated to a small knob (E. M. observation); the haptonema thinner than the flagella, 4-5 times body length when fully extended with a small basal swelling, a club-shaped tip but no clearly marked translucent sheath obvious under the electron microscope. The periplast of a pectic nature covered by very thin transparent, sculptured, dimorphic scales, details visible only under the electron microscope. Scales without spines very numerous, 0.5x0.6 to 0.7 x 0.9 µm, with a pattern of radiating ridges on one side and a slightly raised rim surrounding irregular crossed striations on the other. Spined scales, 28-30 in number, the spine abruptly truncated and slightly tapering, 9-12 (exceptionally 15) µm long, 0.2-0.3 µm wide, arising from a circular (or conical?) base, 1-1.4 µm. wide, marked with concentric striations on its outer side.

Cells uninucleate, no stigma. Chromatophores usually 2 or 4, sometimes 6 or 8, deep golden brown; in motile phase saucer-shaped, ellipsoid, or oblong, frequently bifid towards non-flagellar pole, parietal, with a single globular body (pyrenoid?) on inner face placed near margin towards the non-flagellar pole; in non-motile phase deeply lobed or stellate. Oil and leucosin produced. Ejectile muciferous bodies generally distributed in peripheral cytoplasm. Nutrition phototrophic and/or phagotrophic. Non-toxic to fish.

In motile phase asexual reproduction by fission into 2 daughter-cells of equal or unequal size; in non-motile phase reproduction (asexual?) by successive fission of amoeboid cells to produce 4 ovate daughter-cells with walls, walls faintly brownish and slightly rugose on the exterior; motile phase probably liberated from walled daughter-cells through a pore.

Morphology:

Cultures: Strains of this species are maintained in culture, for details see Roscoff Culture Collection.

Geological Range:
Last occurrence (top): Extant. Data source:
First occurrence (base): within No known fossil record modern (0.00-0.00Ma, base in "Holocene" stage). Data source:

Haptolina ericina compiled by Jeremy R. Young viewed: 30-4-2025 Taxon Search: Advanced Search Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=20183 Go to Archive.is to create a permanent copy of this page - citation notes

Add Comment

* Required information

Comment

Name

Email

Country

Captcha

Notify me of new comments via email

Remember my form inputs on this computer

I have read and agree to the terms and conditions

x

Insert Bullet List

Please enter at least one item.

Item:

Item:

Item:

Item:

Item:

x

Insert Numeric List

Please enter at least one item.

Item:

Item:

Item:

Item:

Item:

x

Insert Image

Please enter the link of the image

x

Privacy Policy

This policy contains information about your privacy. By posting, you are declaring that you understand this policy:

• Your name, rating, website address, town, country, state and comment will be publicly displayed if entered.
• Aside from the data entered into these form fields, other stored data about your comment will include:
  • Your IP address (not displayed)
  • The time/date of your submission (displayed)
• Your email address will not be shared. It is collected for only two reasons:
  • Administrative purposes, should a need to contact you arise.
  • To inform you of new comments, should you subscribe to receive notifications.
• A cookie may be set on your computer. This is used to remember your inputs. It will expire by itself.

This policy is subject to change at any time and without notice.

x

Terms and Conditions

These terms and conditions contain rules about posting comments. By submitting a comment, you are declaring that you agree with these rules:

• Although the administrator will attempt to moderate comments, it is impossible for every comment to have been moderated at any given time.
• You acknowledge that all comments express the views and opinions of the original author and not those of the administrator.
• You agree not to post any material which is knowingly false, obscene, hateful, threatening, harassing or invasive of a person's privacy.
• The administrator has the right to edit, move or remove any comment for any reason and without notice.

Failure to comply with these rules may result in being banned from submitting further comments.

These terms and conditions are subject to change at any time and without notice.

Comments

No comments yet. Be the first!

x