Stylaster stejnegeri

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Cairns S, Lindner A (2011) A Revision of the Stylasteridae (Cnidaria, Hydrozoa, Filifera) from Alaska and Adjacent Waters. ZooKeys 158 : 1–88, doi. Versioned wiki page: 2011-12-22, version 20107, https://species-id.net/w/index.php?title=Stylaster_stejnegeri&oldid=20107 , contributors (alphabetical order): Pensoft Publishers.

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BibTeX:

@article{Cairns2011ZooKeys158,
author = {Cairns, Stephen D. AND Lindner, Alberto},
journal = {ZooKeys},
publisher = {Pensoft Publishers},
title = {A Revision of the Stylasteridae (Cnidaria, Hydrozoa, Filifera) from Alaska and Adjacent Waters},
year = {2011},
volume = {158},
issue = {},
pages = {1--88},
doi = {10.3897/zookeys.158.1910},
url = {http://www.pensoft.net/journals/zookeys/article/1910/abstract},
note = {Versioned wiki page: 2011-12-22, version 20107, https://species-id.net/w/index.php?title=Stylaster_stejnegeri&oldid=20107 , contributors (alphabetical order): Pensoft Publishers.}

}

RIS/ Endnote:

TY - JOUR
T1 - A Revision of the Stylasteridae (Cnidaria, Hydrozoa, Filifera) from Alaska and Adjacent Waters
A1 - Cairns S
A1 - Lindner A
Y1 - 2011
JF - ZooKeys
JA -
VL - 158
IS -
UR - http://dx.doi.org/10.3897/zookeys.158.1910
SP - 1
EP - 88
PB - Pensoft Publishers
M1 - Versioned wiki page: 2011-12-22, version 20107, https://species-id.net/w/index.php?title=Stylaster_stejnegeri&oldid=20107 , contributors (alphabetical order): Pensoft Publishers.

M3 - doi:10.3897/zookeys.158.1910

Wikipedia/ Citizendium:

<ref name="Cairns2011ZooKeys158">{{Citation
| author = Cairns S, Lindner A
| title = A Revision of the Stylasteridae (Cnidaria, Hydrozoa, Filifera) from Alaska and Adjacent Waters
| journal = ZooKeys
| year = 2011
| volume = 158
| issue =
| pages = 1--88
| pmid =
| publisher = Pensoft Publishers
| doi = 10.3897/zookeys.158.1910
| url = http://www.pensoft.net/journals/zookeys/article/1910/abstract
| pmc =
| accessdate = 2019-11-17

}} Versioned wiki page: 2011-12-22, version 20107, https://species-id.net/w/index.php?title=Stylaster_stejnegeri&oldid=20107 , contributors (alphabetical order): Pensoft Publishers.</ref>

See also the citation download page at the journal.


Taxonavigation

Ordo: Filifera
Familia: Stylasteridae
Genus: Stylaster

Name

Stylaster stejnegeri (Fisher, 1938)Wikispecies linkPensoft Profile

  • Allopora stejnegeri Fisher, 1938: 518-519, pl. 42, figs 2–2b, pl. 56.—Boschma 1957[1]: 28.
  • Stylaster stejnegeri: Cairns 1983b[2]: 429.—Wing and Barnard 2004[3]: 11, 28.—Heifetz et al. 2005[4]” 134, 137 (listed).—Stone and Shotwell 2007[5]: 108 (listed).—Jameison et al. 2007: 224 (listed).

Type material

Holotype, 1 female colony, and SEM stub 1500, dry, USNM 43271 (Fig. 11C). Type locality. Albatross 4777: 52°11'N, 179°49'E (Petrel Bank, Aleutian Islands), 79–95 m.

Material examined

Holotype.

Description.

The holotype (Fig. 11C) is a small, arborescent colony 6 cm in height and 7 cm in width, with a basal branch diameter of 9.3 mm. Branches cylindrical and blunt tipped, the tips measuring 3-5 mm in diameter. Coenosteum reticulate-granular in texture, coenosteal strips 50-55 µm wide, separated by slits 13-15 µm wide. Coenosteum also covered with small papillae (nematopores). Binary spionid worm tubes present along branch axes. Coenosteum light orange to pink.
Cyclosystems on all sides of branches, circular, 1.0–1.2 mm in diameter. Gastropores circular, 0.35–0.45 mm in diameter. Gastropore tube cylindrical and usually slightly curved such that gastrostyle tip is not visible from apical view; ring palisade absent. Gastrostyle lanceolate.
Cyclosystems flush to only slightly raised above coenosteum; surface of pseudosepta porous. Dactylotome width 0.08-0.11 m. Range of dactylopores per cyclosystems 5-11 (n = 50, average = 6.46 (σ = 1.03), and mode = 6). Small (0.11–0.14 mm diameter), circular supernumerary dactylopores fairly common (Fig. 14A-C). Dactylostyles rudimentary (Fig. 14H).
Female ampullae (Fig. 14A, I–J) superficial hemispheres up to 1.1 mm in diameter, often bearing low ridges radiating from their apex. Male ampullae unknown.

Remarks

Although only one specimen is known of this species, it does appear to be distinctive. Perhaps most similar to Stylaster brochi, it differs from that species in having flush cyclosystems, fewer dactylopores per cyclosystem, and ridged female ampullae (Table 2).

Distribution

Known only from one specimen from the type locality.

Taxon Treatment

  • Cairns, S; Lindner, A; 2011: A Revision of the Stylasteridae (Cnidaria, Hydrozoa, Filifera) from Alaska and Adjacent Waters ZooKeys, 158: 1-88. doi

Other References

  1. Boschma H (1957) List of the described species of the order Stylasterina. Zoologische Verhandelingen 33: 1-72.
  2. Cairns S (1983b) A generic revision of the Stylasterina (Coelenterata: Hydrozoa). Part 1. Description of the genera. Bulletin of Marine Science 33 (2): 427-508.
  3. Wing G, Barnard D (2004) A field guide to Alaskan Corals. NOAA Technical Memorandum NMFS-AFSC-146, NOAA, US Dept of Commerce, 67 pp.
  4. Heifetz J, Wing B, Stone R, Malecha P, Courtney D (2005) Corals of the Aleutian Islands. Fisheries Oceanography 14: 131-138. doi: 10.1111/j.1365-2419.2005.00371.x
  5. Stone R, Shotwell S (2007) State of deep coral ecosystems in the Alaskan region: Gulf of Alaska, Bering Sea and the Aleutian Islands. In: Hourigan TF et al. (Eds) The State of Deep Coral Ecosystems of the United States. NOAA Technical Memorandum CRCP-3, NOAA, Silver Spring, 65–108.

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