Notes on some sertulariid hydroids (Cnidaria: Hydrozoa) from the tropical western Pacific, with descriptions of nine new species Author Galea, Horia R. text European Journal of Taxonomy 2016 2016-08-02 218 1 52 journal article 21896 10.5852/ejt.2016.218 cba502b0-cc06-4252-94f1-3eda754e8183 2118-9773 3840195 A4D7AA38-D18F-4604-A5E0-D965637BD9F8 Gonaxia sinuosa Vervoort, 1993 Figs 2E , 3 L–N Gonaxia sinuosa Vervoort, 1993: 179 , figs 31c–e, 35b, 37a–b, 38a. Material examined SMIB 4: Stn. DW40, an originally 8 cm high colony with simple stem, now broken into two parts, bearing male gonothecae (MNHN-IK- 2012 -16526); Stn. DW48, an originally 5.5 cm high, sterile colony with simple stem, now broken into two unequal parts (MNHN-IK- 2012 -16527). BATHUS 2: Stn. DW716, six colonies and fragments, 2.3–9.1 cm high, with simple or branched stems, two of which are sterile, two others bear male gonothecae, and the remaining two carry female gonothecae (MNHN-IK- 2012 -16528). BATHUS 3: Stn. CP 804, eleven colonies and fragments, 1.5–4.9 cm high, all with simple stems, of which four are sterile, three bear male gonothecae, and the remaining four bear female gonothecae (MNHN-IK- 2012 -16529); Stn. DW829, two colonies with simple stems, 3.8 and 2.4 cm high, the latter devoid of its basal part, and bearing three incipient gonothecae (MNHN-IK- 2012 -16530). Remarks The shape of the hydrothecae ( Fig. 3L ), as well as the condition and morphology of the gonothecae ( Fig. 3 M–N) are characteristic. One stem from BATHUS 2, Stn. DW716 is fully fertile (male) and bears its gonothecae in two parallel rows, each one originating from below the base of an axillar hydrotheca. The female stems examined here bear a lesser number of gonothecae. Geographical distribution New Caledonia ( Vervoort 1993 ; present study), Norfolk Ridge ( Vervoort 1993 ).