Eudendrium capillare Alder, 1856

Mendoza-Becerril, María A., Estrada-González, Mariae C., Mazariegos-Villarreal, Alejandra, Restrepo-Avendaño, Luisa, Villar-Beltrán, Rogelio D., Agüero, José & Cunha, Amanda F., 2020, Taxonomy and diversity of Hydrozoa (Cnidaria, Medusozoa) of La Paz Bay, Gulf of California, Zootaxa 4808 (1), pp. 1-37: 10

publication ID

https://doi.org/10.11646/zootaxa.4808.1.1

publication LSID

lsid:zoobank.org:pub:64E656F6-FBD7-4BA2-B399-B10A97CBEF72

persistent identifier

http://treatment.plazi.org/id/1A5A002B-FFF8-6D79-28E3-3D7F84D65796

treatment provided by

Plazi

scientific name

Eudendrium capillare Alder, 1856
status

 

Eudendrium capillare Alder, 1856  

Figs. 4 View FIGURE 4 B –E

Eudendrium capillare Alder 1856: 355   , pl. 12, figs. 9–12.

Eudendrium tenue Agassiz 1865: 160   , fig. 250.— Fraser 1938a: 20.— Fraser 1938b: 109.— Fraser 1948: 199.

Type locality. Embleton Bay , Northumberland, Great Britain ( Alder 1856)   .

Material examined. Polyp—PB6_8, sampling site 3 (1), mature, male, on rock, Bryozoa, and Polychaeta.

Description. Colony small (4 mm high), stolonal and erect, monosiphonic, arising from creeping hydrorhiza, hydrocaulus alternately branched. Exoskeleton with visible layer corresponding to perisarc. Perisarc thin (2.8–4.6 µm wide), annulated at the base of the hydrocaulus and branches. Hydranths urn-shaped (0.4 mm long from base to hypostome, 0.3 mm wide) with proximal perisarc groove; gastroderm with black pigment spots, without ring of nematocysts above the perisarc groove. Hypostome large, knob-shaped; one whorl of 19–24 solid and filiform tentacles. Male gonophores as fixed sporosacs, with up to three chambers each, on reduced hydranths.

Nematocysts (length x diam.). Heterotrichous microbasic eurytele (7.2–9.7 x 3.4–4.2 µm).

More detailed description in Calder (1988) and Marques (2001).

Taxonomic status. Accepted. AphiaID 117544.

Remarks. This species is differentiated from Eudendrium ramosum ( Linnaeus, 1758)   based on the size of the heterotrichous microbasic euryteles, which are larger in E. ramosum   (24.7–33.0 µm long, 10.8–17.4 µm wide) ( Marques 2001).

Distribution. Species frequently distributed in warm waters of the Atlantic, Indian, and Pacific oceans ( Calder 1988; Marques 2001). In Mexican Pacific, the species was reported in Baja California (Cedros Island and Isla Partida) ( Fraser 1938b; Fraser 1948), Baja California Sur (San Juanico Bay and Dewey Channel) ( Fraser 1948), Colima (Clarion Island) ( Fraser 1938a; Fraser 1948) and Guerrero (White Friars Islands) ( Fraser 1938a).

Kingdom

Animalia

Phylum

Cnidaria

Class

Hydrozoa

Order

Anthoathecata

Family

Eudendriidae

Genus

Eudendrium

Loc

Eudendrium capillare Alder, 1856

Mendoza-Becerril, María A., Estrada-González, Mariae C., Mazariegos-Villarreal, Alejandra, Restrepo-Avendaño, Luisa, Villar-Beltrán, Rogelio D., Agüero, José & Cunha, Amanda F. 2020
2020
Loc

Eudendrium tenue

Fraser, C. M. 1948: 199
Fraser, C. M. 1938: 20
Fraser, C. M. 1938: 109
1938
Loc

Eudendrium capillare

Alder, J. 1856: 355
1856