Clytia linearis ( Thornely, 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-

Clytia linearis ( Thornely, 1900)

Materials

Type status: Other material. Location: locality: La Concha ; minimumDepthInMeters: 0.5; maximumDepthInMeters: 1.0; Event: year: 2021; month: 6; day: 19; habitat: middle macroalgae regions; Record Level: dataGeneralizations: 18 ° C; 36 PSU

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 d

Type locality. Papua New Guinea: Blanche Bay, New Britain ( Thornely 1900).

Detailed description in Calder (1991 b), Mendoza-Becerril et al. (2020).

Taxonomic status. Accepted. AphiaID 117370.

Diagnosis

Colonies erect, sympodial, occasionally branching. Erect stems monosiphonic, arising from a creeping hydrorhiza. Exoskeleton thin. Internodes with annulations at the base and upward curved apophysis, adjacent to hydrothecal pedicel; pedicel with distal hydrotheca and annulations along its whole length. Hydrotheca cylindrical, with a diaphragm thin, transverse, hydrothecal margin with triangular cusps and pleats originating at apex of each cusp and continuing downwards to upper part of hydrothecal wall. 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.