Zygophylax Valdiviae, STECHOW, 1923

Gu, Zhangjie, Ruthensteiner, Bernhard, Moura, Carlos J., Liu, Lihua, Zhang, Rui & Song, Xikun, 2022, Systematic affinities of Zygophylacidae (Cnidaria: Hydrozoa: Macrocolonia) with descriptions of 15 deep-sea species, Zoological Journal of the Linnean Society (Zool. J. Linn. Soc.) 196, pp. 52-87 : 79-80

publication ID	https://doi.org/10.1093/zoolinnean/zlac036
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scientific name	Zygophylax Valdiviae
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ZYGOPHYLAX VALDIVIAE STECHOW, 1923

( FIGS 5R–U View Figure 5 , 20 View Figure 20 )

Zygophylax valdiviae Stechow, 1923d: 6–7 ; Stechow, 1925: 446–447, fig. 19; Rees & Vervoort, 1987: 75; Ruthensteiner et al., 2008: 25.

Type locality: 7 km south of St. Paul Island, southern Indian Ocean; 672 m.

Specimens examined: Five infertile syntypes from the Indian Ocean; see details in Supporting Information, Table S1 View Table 1 .

Lectotype designation: Lectotype, an infertile, formalin-fixed then ethanol-preserved colony ZSM 20040930 View Materials ( Fig. 20A View Figure 20 ); paralectotypes, microslides ZSM 20041566 View Materials – ZSM 20041569 View Materials ( Figs 5R–U View Figure 5 , 20B–J View Figure 20 ) .

References

Rees WJ, Vervoort W. 1987. Hydroids from the John Murray Expedition to the Indian Ocean, with revisory notes on Hydrodendron, Abietinella, Cryptolaria and Zygophylax (Cnidaria: Hydrozoa). Zoologische Verhandelingen, Leiden 237: 1 - 209.

Ruthensteiner B, Reinicke G, Straube N. 2008. The type material of Hydrozoa described by Eberhard Stechow in the Zoologische Staatssammlung Munchen. Spixiana 31: 3 - 27.

Stechow E. 1923 d. Neue Hydroiden der Deutschen Tiefsee Expedition, nebst Bemerkungen uber einige andere Formen. Zoologischer Anzeiger 56: 1 - 20.

Stechow E. 1925. Hydroiden der Deutschen Tiefsee-Expedition. Wissenschaftliche Ergebnisse der Deutschen Tiefsee-Expedition auf dem Dampfer ' Valdivia' 1898 - 1899 27: 383 - 546.

Figures

Figure 5. Type materials (all paralectotypes) of five Zygophylax species deposited in the Zoologische Staatssammlung München.A–F,Z. abyssicola (Stechow, 1926), ZSM 20043537–ZSM 20043542; G, H, Z. africana Stechow, 1923, ZSM 20041574, ZSM 20043579; I–M, Z. curvitheca Stechow, 1913, ZSM 20043570–ZSM 20043574; N–Q, Z. pacifica Stechow, 1920, ZSM 20041554–ZSM 20041556, ZSM 20043569; R–U, Z. valdiviae Stechow, 1923, ZSM 20041566–ZSM 20041569. Scale bars: A–U = 2 cm.

Figure 20. Type material of Zygophylax valdiviae Stechow, 1923. A–C, colonies (in dotted rectangles) growing on Sertularella valdiviae Stechow, 1923; the arrows in C indicate two solitary hydrothecae; D–G, solitary hydrothecae (arrows); H–J, magnification of various hydrothecae, the arrows in J indicate a nematotheca (left arrow) and the straight diaphragm (right arrow). From samples: A: ZSM 20040930, lectotype; B, J: ZSM 20041566, paralectotype; C, E, H, I: ZSM 20041569, paralectotype; D, F, G: ZSM 20041568, paralectotype. A–J, Indian Ocean. A–J, light microscope images. Scale bars: A, D = 2 mm; B, C, E = 1 mm; F, G = 500 µm; H = 100 µm; I, J = 200 µm.