Plumularia floridana Nutting, 1900

Mendoza-Becerril, María A., Murillo-Torres, Paulina, Serviere-Zaragoza, Elisa, León-Cisneros, Karla, Mazariegos-Villarreal, Alejandra, López-Vivas, Juan Manuel & Agüero, José, 2024, First records of hydroid epibionts on the introduced macroalga Gracilaria parvispora in the Mexican Pacific, Biodiversity Data Journal 12, pp. e 130248-e 130248 : e130248-

Plumularia floridana Nutting, 1900

Materials

Type status: Other material. Location: locality: La Concha ; minimumDepthInMeters: 0.5; maximumDepthInMeters: 1.0; Event: year: 2022; month: 2; day: 11; habitat: middle macroalgae regions; Record Level: dataGeneralizations: 18 ° C; 36 PSU

Notes

Fig. 6 c

Type locality. USA, two miles west of Cape Romano, Florida ( Nutting 1900).

Detailed description in Calder (1983), Calder (1997), Mendoza-Becerril et al. (2020).

Taxonomic status. Accepted. AphiaID 117821.

Diagnosis

Colonies erect arising from creeping hydrorhiza. Hydrocaulus monosiphonic, branched; medium and distal part of the hydrocaulus distinctly divided into regular internodes by transverse nodes; internodes straight, but slightly curved distally; each internode with a distal apophysis and with three nematothecae, two axillary and one median opposite to apophysis. Hydrocladia alternate, unbranched, with alternate athecate and thecate internodes. Nematothecae conical, bithalamic and movable. Hydrotheca cup-shaped; margin entire, without intrathecal septum. Without gonothecae.

Figures

Figure 6. Hydrozoan epibionts. a Corydendrium sp.: part of hydrocaulus with two hydranths, scale equals 0.5 mm; b Ventromma halecioides: part of a hydrocaulus with the proximal end of a hydrocladium, hydrothecae, nematothecae, scale equals 0.3 mm; c Plumularia floridana: part of a hydrocaulus with the proximal end of a hydrocladium, hydrothecae and nematothecae, scale equals 0.1 mm; d Clytia linearis: part of hydrocaulus with hydrothecae, scale equals 0.8 mm; e Obelia cf. dichotoma: part of hydrocaulus with hydrothecae, scale equals 0.2 mm; f Obelia oxydentata: part of hydrocaulus with hydrothecae, scale equals 0.3 mm; g Obelia tenuis: part of hydrocaulus with a hydrotheca, scale equals 0.1 mm.