Gomphonemopsis pseudexigua Medlin
Gomphonemopsis pseudexigua Medlin and Round (1986): 212, figs. 16–18 — Krzywda et al. (2019); Witkowski et al. (2000): 222, pl. 61, figs. 17, 18; Pienitz et al. (2003): 58, pl. 17, fig. 21.
Description
Valves linear to narrowly linear lanceolate, length 20.9–26.9 (6–40) µm, width 1.6–1.9 (1.5–5.0) µm. Striae 18–20 (11–22) in 10 µm, elongate to generally round at the poles, slightly parallel to slightly radiate at the apices. Narrow axial area, small rectangular or round central area that reaches the valve margin with a small stria lying in the mantle opposite either side of the central area.
Notes
The specimens from MHMPP fit well with the morphological summary of Krzywda et al. (2019). iNaturalist ID: 189577227. Mol. data: ERS 27214058, ERS 27214059, ERS 27214060, ERS 27214061, ERS 27214062, ERS 27214063, ERS 27214064, ERS 27214065, ERS 27214066, ERS 27214067, ERS 27214068, ERS 27214069, ERS 27214070 (Fig. 19).
", "identifiers": [ { "identifier": "http://treatment.plazi.org/id/9C00DB37A094506AAAEF4FA4E884EA5F", "scheme": "url" } ], "publication_date": "2026-05-15", "publisher": "Zenodo", "references": [ { "reference": "Medlin L. K., Round F. E. 1986 Taxonomic studies of marine gomphonemoid diatoms Diatom Research 1 2 205 225 10.1080/0269249X.1986.9704970" }, { "reference": "Krzywda M., Gastineau R., B\u0105k M., D\u0105bek P., G\u00f3recka E., Chengxu Z., Lange-Bertalot H., Li C. L., Witkowski A. 2019 Morphology and molecular phylogeny of Gomphonemopsis sieminskae sp. nov. isolated from brackish waters of the East China Sea coast Plant and Fungal Systematics 64 1 17 24 10.2478/pfs-2019-0003" }, { "reference": "Witkowski A., Lange-Bertalot H., Metzeltin D. 2000 Diatom flora of marine coasts I Lange-Bertalot H. Iconographia diatomologica. Annotated diatom micrographs Vol. 7, Diversity-taxonomy-identification A. R. G. Gantner Verlag K. G. Ruggell, Liechtenstein 925" }, { "reference": "Pienitz R., Fedje D., Poulin M. 2003 Marine and non-marine diatoms from the Haida Gwaii archipelago and surrounding coasts, Northeastern Pacific, Canada Bibliotheca Diatomologica 48 J. Cramer Stuttgart, Germany 146" } ], "related_identifiers": [ { "identifier": "10.3897/BDJ.14.e189060", "relation_type": { "id": "ispartof", "title": { "de": "Ist Teil von", "en": "Is part of" } }, "resource_type": { "id": "publication-article", "title": { "de": "Zeitschriftenartikel", "en": "Journal article" } }, "scheme": "doi" }, { "identifier": "http://publication.plazi.org/id/7EEC96E29628567F973BC24E243B2259", "relation_type": { "id": "ispartof", "title": { "de": "Ist Teil von", "en": "Is part of" } }, "resource_type": { "id": "publication-article", "title": { "de": "Zeitschriftenartikel", "en": "Journal article" } }, "scheme": "url" }, { "identifier": "https://biodiversitypmc.sibils.org/collections/plazi/9C00DB37A094506AAAEF4FA4E884EA5F", "relation_type": { "id": "issourceof", "title": { "de": "Ist Quelle von", "en": "Is source of" } }, "scheme": "url" } ], "resource_type": { "id": "publication-taxonomictreatment", "title": { "de": "Taxonomische Behandlung", "en": "Taxonomic treatment" } }, "rights": [ { "description": { "en": "CC0 waives copyright interest in a work you've created and dedicates it to the world-wide public domain. Use CC0 to opt out of copyright entirely and ensure your work has the widest reach." }, "icon": "cc-cc0-icon", "id": "cc0-1.0", "props": { "scheme": "spdx", "url": "https://creativecommons.org/publicdomain/zero/1.0/legalcode" }, "title": { "en": "Creative Commons Zero v1.0 Universal" } } ], "subjects": [ { "subject": "Biodiversity" }, { "subject": "Taxonomy" }, { "subject": "Chromista" }, { "subject": "Ochrophyta" }, { "subject": "Bacillariophyceae" }, { "subject": "Cymbellales" }, { "subject": "Rhoicospheniaceae" }, { "subject": "Gomphonemopsis" }, { "subject": "Gomphonemopsis pseudexigua" } ], "title": "Gomphonemopsis pseudexigua Medlin and Round 1986" }, "parent": { "access": { "owned_by": { "user": "1161" }, "settings": { "accept_conditions_text": null, "allow_guest_requests": false, "allow_user_requests": false, "secret_link_expiration": 0 } }, "communities": { "default": "c529f97d-f8cb-4c13-a439-9e36891694c2", "entries": [ { "access": { "member_policy": "open", "members_visibility": "public", "record_submission_policy": "open", "review_policy": "open", "visibility": "public" }, "children": { "allow": true }, "created": "2013-11-11T14:14:18+00:00", "custom_fields": {}, "deletion_status": { "is_deleted": false, "status": "P" }, "id": "c529f97d-f8cb-4c13-a439-9e36891694c2", "links": {}, "metadata": { "curation_policy": "The Biodiversity Literature Repository (BLR) is to share publications related to bio-systematics. The goal is to provide
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