AnimaliaNot EvaluatedacceptedspeciesAccepted
Cnemidocarpa finmarkiensis

Cnemidocarpa finmarkiensis

(Kaier, 1893)

GBIF:159167950

0year

ABOUT

Descriptions(1)

Figure 11 A IHAK 7 West Beach, south side, boulder field, low intertidal, one very small specimen. IHAK 12 BHAK 0604, 0605, 0606 UF 2462, 2463, 2464 Rocky intertidal across small bay from lab. Under rocks, common but mostly small. One parasitic copepod from specimen 0604 fixed separately as voucher BHAK 0619. IHAK 18 BHAK 0646, 0647 UF 2496, 2497. Under lab dock. IHAK 60 Rattenbury Pinnacle, Scuba, 17 – 20 m, one small specimen. XHAK 1 Maey Channel ARMS 7.3 m. Two very small specimens on plate. XHAK 3 BHAK 1612 UF 4117. Mercury Islet ARMS, 7.3 m. Three specimens on plates. XHAK 8 Westbeach ARMS 5 m. Several small on plates. The tunic of this beautiful small species is always a shiny red or orangeish red, never overgrown by any epibionts even at the edges. It attains no more than 3 – 4 cm in width, and slightly less in height, though when disturbed the body wall muscles can contract it to an almost flat mass. The siphons are very short, both four-lobed. The tunic is thin but tough. Van Name (1945) gives a detailed morphology. This is a circumpolar species in the far north (Van Name 1945). In the North Pacific it is common from Alaska to Washington, and rarely encountered as far south as northern California (Van Name 1945; Abbott & Newberry 1980; Lamb & Hanby 2005).
Lambert, Gretchen (2019): The Ascidiacea collected during the 2017 British Columbia Hakai MarineGEO BioBlitz. Zootaxa 4657 (3): 401-436, DOI: 10.11646/zootaxa.4657.3.1

Export occurrence data

Darwin Core Archive (ZIP)

CLASSIFICATION

Taxonomic Classification Tree

MULTIMEDIA

Media Files(1)

FIGURE 11. Styelidae. A: Cnemidocarpa finmarkiensis about 2 cm in width; B: Metandrocarpa dura; C: M. taylori; D: Styela gibbsii 1.7 cm in length; E: S. montereyensis, longest one 8 cm; F: S. truncata 2 cm in length. Scale bars: B, 1 mm; C, 2.5 mm. A and F photos by G. Paulay.

Imageimage/png© Lambert, GretchenLambert, Gretchen

IMAGES

Gallery(1)

See Gallery

Occurrences with images

Source Information

The Ascidiacea collected during the 2017 British Columbia Hakai MarineGEO BioBlitz

checklist

This dataset contains the digitized treatments in Plazi based on the original journal article Lambert, Gretchen (2019): The Ascidiacea collected during the 2017 British Columbia Hakai MarineGEO BioBlitz. Zootaxa 4657 (3): 401-436, DOI: 10.11646/zootaxa.4657.3.1

Abstract

A three-week intensive marine biodiversity survey was carried out at a small remote region of the central British Columbia coast at and near the Calvert Island Marine Station (Hakai Institute) July 21–August 11, 2017. The survey included daily sampling by the staff and a number of visiting taxonomists with specialties covering all the major groups of invertebrates. Many marine habitats were sampled: rocky and sand/gravel intertidal and tidepools, eelgrass meadows, shallow and deeper subtidal by snorkel and Scuba, plus artificial surfaces including the sides and bottom of the large floating dock at the Institute and settlement plates set out up to a year previously at various subtidal sites. Many new species were recorded by all the taxonomists. In this very biodiverse remote area 36 ascidian species were identified: 18 Aplousobranchia, 7 Phlebobranchia, and 11 Stolidobranchia, comprising a total of 15 solitary and 21 colonial species including two undescribed colonial species. This represents almost one third of all the known North American species from Alaska to southern California in this limited very remote area. Remarkably, only two are possible non-natives. Diplosoma listerianum (Milne-Edwards, 1841), was collected mostly on natural substrates including deeper areas sampled by Scuba, and one colony occurred on a settlement plate. A few Ciona savignyi Herdman, 1882 were collected, two from natural substrates and four from artificial surfaces. There were no botryllids, Styela clava Herdman, 1881, Didemnum vexillum Kott, 2002, or Molgula manhattensis (De Kay, 1843), though these are all common and sometimes very abundant non-natives in other parts of BC and along much of the U.S. west coast. Most of the species encountered are known in northern California, Washington, and southern BC, but only a small number are represented among the few known Alaska species.

Lambert G, plazi (2019). The Ascidiacea collected during the 2017 British Columbia Hakai MarineGEO BioBlitz. Plazi.org taxonomic treatments database. Checklist dataset https://doi.org/10.11646/zootaxa.4657.3.1 accessed via GBIF.org on 2026-06-16.

CC0Published 8/20/2019View dataset
GBIF Usage Key
159167950
Dataset Key
3414318d-7570-49ac-9013-be4e1f1e6347
Origin
source
Backbone Key
2332306
Taxon ID
6A2E3761A926FFD11390FBFBDDBDF956.taxon
Last Crawled
6/10/2026
Last Interpreted
6/10/2026