Perophora annectens Ritter, 1893

Lambert, Gretchen, 2019, The Ascidiacea collected during the 2017 British Columbia Hakai MarineGEO BioBlitz, Zootaxa 4657 (3), pp. 401-436 : 421

publication ID	https://doi.org/10.11646/zootaxa.4657.3.1
publication LSID	lsid:zoobank.org:pub:86DD93B2-E8F4-4174-B105-9436357CB4B6
DOI	https://doi.org/10.5281/zenodo.5941213
persistent identifier	https://treatment.plazi.org/id/6A2E3761-A926-FFD1-1390-FF12DD51FCF0
treatment provided by	Plazi (2019-08-20 06:55:10, last updated 2024-11-29 11:27:52)
scientific name	Perophora annectens Ritter, 1893
status

Treatment

Figure 10H View FIGURE 10

IHAK 37 BHAK 1705 UF 2522. Crazy Town surge channel, Scuba, 5 m. Large colony on kelp holdfast with Styela truncata Ritter, 1901 .

IHAK 44 BHAK 1719 UF 2531. Rattenbury Pinnacle, Scuba, 21 m. On filamentous red alga .

MHAK 14 BHAK 0622. Tippy Rock Bay low intertidal with Boltenia villosa ( Stimpson, 1864) and Metandrocarpa taylori .

This species is usually found as an epibiont growing over solitary ascidians or various algal species. The small zooids up to 3 mm in height are connected by stolons; colonies may be quite large and composed of hundreds of zooids. Rarely some of the zooids in a colony may be completely embedded in a common transparent tunic, though in each zooid the siphons open independently at the tunic surface. Zooids are yellowish-green with four rows of stigmata. Reproduction is both sexual with the embryos incubated in a special pouch in the atrial area, or asexual by stolonic budding. A detailed morphological description is given by Ritter (1893), Huntsman (1912b), and Van Name (1945). This is a common native species from southern Alaska to southern California on both natural and artificial surfaces ( Huntsman 1912b; Van Name 1945; Abbott & Newberry 1980; O’Clair & O’Clair 1998; Lamb & Hanby 2005).

References

Abbott, D. P. & Newberry, A. T. (1980) Urochordata: the tunicates. In: Morris, R. H., Abbott, D. P. & Haderlie, E. C. (Eds.), Intertidal Invertebrates of California. Stanford, California, Stanford University Press, pp. 177 - 226 + P 57 - P 67.

Huntsman, A. G. (1912 b) Holosomatous ascidians from the coast of western Canada. Contributions to Canadian Biology 1906 - 1910, 103 - 185. https: // doi. org / 10.1139 / f 06 - 010 b

Lamb, A. & Hanby, B. P. (2005) Marine Life of the Pacific Northwest - A Photographic Encyclopedia of Invertebrates, Seaweeds and Selected Fishes. Harbour Publishing, Madeira Park, BC., 398 pp.

O'Clair, R. M. & O'Clair, C. E. (1998) Southeast Alaska's Rocky Shores. Plant Press, Auke Bay, Alaska, 564 pp.

Ritter, W. E. (1893) Tunicata of the Pacific Coast of North America. I, Perophora annectens n. sp. Proceedings of the California Academy of Sciences, 4, 37 - 85.

Ritter, W. E. (1901) Papers from the Harriman Alaska Expedition. XX. The ascidians. Proceedings of the Washington Academy of Sciences, 3, 225 - 266.

Stimpson, W. (1864) Description of new species of marine Invertebrata from Puget Sound, collected by the naturalists of the North-west Boundary Commission. Proceedings of the Academy of Natural Sciences of Philadelphia, 16, 153 - 161. https: // doi. org / 10.5962 / bhl. title. 5972 0

Van Name, W. G. (1945) The North and South American ascidians. Bulletin of the American Museum of Natural History, 84, 1 - 476.

Figures

FIGURE 10. Figure 10. Phlebobranchia. A, B: Ascidia columbiana. A: whole animal right side, anterior on the right. Arrows indicate oral siphon opening (on right) and atrial opening above. B: anterior end around oral opening showing tunic papillations. C: Ascidia paratropa 9 cm in length; D: Ciona savignyi 6.2 cm in length; E: Chelyosoma productum 1.5 cm in diameter; F: Corella inflata about 3 cm in length; G: Corella willmeriana about 3 cm in length; H: Perophora annectens. Scale bars: A, 1.5 cm; B, 2 mm; H, 4 mm. C, D, F, G photos by G. Paulay.