Diphasia orientalis Billard, 1920

Galea, Horia R., 2016, Notes on some sertulariid hydroids (Cnidaria: Hydrozoa) from the tropical western Pacific, with descriptions of nine new species, European Journal of Taxonomy 218, pp. 1-52 : 5-6

Diphasia orientalis Billard, 1920

Fig. 1K

Diphasia orientalis Billard, 1920: 146 , fig. 1d.

Diphasia orientalis – Billard 1925b: 212, figs 52–53. ― Gibbons & Ryland 1989: 407, fig. 26.

Material examined

MUSORSTOM 3: Stn. DR117, two infertile, unbranched stems, 9 and 12 mm high, detached from substrate (MNHN-IK-2012-16515); Stn. CP121, two infertile, unbranched stems, 13 and 22 mm high, detached from substrate (MNHN-IK-2012-16516).

Remarks

For a thorough description of this species, see Billard (1925b).

Geographical distribution

Indonesia ( Billard 1925b), Fiji ( Gibbons & Ryland 1989), Philippines (present report).

Figures

Fig. 1. ― A–B. Caminothujaria molukkana von Campenhausen, 1896 (BORDAU 2, Stn. CP1582). A. Fragment of internode with verticil of hydrothecae. B. Gonotheca. ― C–J. Diphasia cristata Billard, 1920 (BORDAU 1, Stn. CP1448). C. Pair of hydrothecae, frontal view. D. Same, dorsal view. E. Cross section through basal part of hydrothecal pair, showing perisarcal crests. F. Female gonotheca. G. Same, apical view. H. Same, cross section. I. Male gonotheca. J. Same, apical view. ― K. Diphasia orientalis Billard, 1920 (MUSORSTOM 3, Stn. DR117), internode with pair of hydrothecae. ― L–O. Dynamena heterodonta (Jarvis, 1922) (MUSORSTOM 9). L. Pair of hydrothecae in material from Stn. DW1204. M. Same sample, hydrothecal aperture, showing internal, submarginal cusps. N–O. Isolated (N) or stacked (O) pairs of hydrothecae in material from Stn. CP1265. ― P. Geminella ceramensis Billard, 1925a (MUSORSTOM 8, Stn. CP1084), internode with pair of hydrothecae. Scale bars: A–D, K–L, N–P = 500 µm; E = 400 µm; F–J = 1 mm; M = 100 µm.