Plumularia strobilophora Billard, 1913

Schuchert, Peter, 2013, Plumularia mooreana, a new marine hydroid from French Polynesia (Hydrozoa, Cnidaria), Revue suisse de Zoologie 120 (3), pp. 405-413 : 410-411

Plumularia strobilophora Billard, 1913

Fig. 3

Plumularia strobilophora Billard, 1913: 35 , fig. 26, Indonesia. – Vannucci, 1951: 87, pl. 3 figs. 17-18. – Vervoort & Vasseur, 1977: 80, fig. 33.

Plumularia strobilifera . – Billard, 1933: 23, fig. 9. – Schmidt, 1972: 43. [misspellings]

not Plumularia strobilophora . – Ryland & Gibbons, 1991: 536, fig. 8. [= P. mooreana ]

SYNTYPE MATERIAL: Naturalis Museum Leiden (The Netherlands); registration number ZMA-4014; Siboga Expedition station 257; at least 2 colonies, one female growing on the hydroids Idiellana pristis, another putatively male on Diphasia spec .

TYPE LOCALITY: Duroa Strait , Kai (Kei) Islands, Indonesia, 52 m depth.

DIAGNOSIS: Small, Plumularia setacea -like hydroid, distinguishable through the very long first hydrocladial segment (athecate segment), the presence of two or more axillar nematothecae, the long distal part of the main segment (may be separated by a node), the much smaller, conical gonothecae with their broadly truncate end (in P. setacea bottle-shaped). The hydrocladial intersegments are long and have 1-2 nematothecae. In addition, all dimensions are distinctly smaller than in P. setacea (comp. Schuchert, 2013).

DISTRIBUTION: Banda Sea, Gulf of Suez, Philippines, French Polynesia, Brazil ( Vervoort & Vasseur, 1977).

Figures

FIG. 3 Plumularia strobilophora Billard, 1913, syntypes ZMA-4014. (A) Segment of stem with first, athecate segment of a hydrocladium. (B-C) Main- and intersegment of hydrocladium. (D) Hydrotheca. (E) Lateral hydrothecae, same scale as D. (F-G) Female gonothecae, same scale as A. (H) Male (?) gonotheca, same scale as A.