Bimeria vestita Wright, 1859

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 : 8-9

Bimeria vestita Wright, 1859

Figs. 3L , 4A

Bimeria vestita Wright 1859: 109 , pl.8, fig. 4.— Fraser 1938a: 17.— Fraser 1938c: 131.

Type locality. Firth of Forth , Scotland ( Wright 1859) .

Material examined. Polyp—PB7_30, sampling site 1 (1), immature, 27°C, on the algae Gracilaria crispata Setchell & Gardner.

Description. Colony small (1 mm high), stolonal, monosiphonic, arising from creeping tubular stolons. Bilayered exoskeleton formed by perisarc and exosarc. Perisarc of moderate thickness (7.6 µm wide), continuous from hydrorriza to tentacle base, wrinkled at the base of hydrocaulus. Exosarc thick and rugose over hydranth, tentacle base, and hypostome, forming a pseudohydrotheca. Hydranth vasiform, merging below almost imperceptibly into pedicel, pedicels quite long. Hypostome conical, 10–12 tentacles in one whorl.

More detailed description in Calder (1988) and Schuchert (2007). Taxonomic status. Accepted. AphiaID 117320. Distribution. In waters of the Atlantic, Indian, and Pacific Oceans ( Schuchert 2007; Mendoza-Becerril et al.

2013). In Mexican Pacific, it has been reported in Jalisco (Navidad Head and White Friars) ( Fraser 1938a; Fraser

1938c).

Figures

FIGURE 3. A–B Rhopalonema velatum Gegenbaur, 1857: A, ecto-endodermal statocyst; B, nematocyst of medusa; a, stenotele; b, desmoneme. C–G Hydrocorynidae: C, colony; D, encrusting colony and amorphous hydrorhizal; E, hydranths and gonophore; F, capitate tentacles; G, nematocyst of polyp; a, stenotele; b, microbasic euryteles. H–K Stauridiosarsia ophiogaster (Haeckel, 1879): H, medusa; I, manubrium and gonads; J, capitate tentacles; K, nematocyst of medusa; a, desmoneme; b, stenotele. L, Bimeria vestita Wright, 1859 polyp. Scale equals A, F, J—200 µm; B, K, G—20 µm; C—33 mm; D—3.5 mm; E—0.8 mm; H—0.7 mm; I—500 µm; L—0.2 mm.

FIGURE 4. A Bimeria vestita Wright, 1859: pseudohydrotheca. B–E Eudendrium capillare Alder, 1856: B, colony; C, hydranths; D, male gonophore; E, nematocyst heterotrichous microbasic eurytele. F–M Aglaophenia sp. Fraser, 1938b: F, hydrocaulus; G–H, hydrocladia; I–J, hydrotheca with nematothecae; K, corbula; L, nematocyst microbasic mastigophore; M, colony. Scale equals A—100 µm; B, K—500 µm; C—250 µm; D, H—220 µm; E—11 µm; F—300 µm; G—200 µm; I—50 µm; J—70 µm; L—20 µm; M—5 mm.