Lafoeina amirantensis Millard and Bouillon, (1973)

Watson, Jeanette E., 2012, Some hydroids (Hydrozoa: Hydroidolina) from Dampier, Western Australia: annotated list with description of two new species., Memoirs of Museum Victoria 69, pp. 355-363 : 357

Lafoeina amirantensis Millard and Bouillon, (1973)

Figure 1C, D

Egmundella amirantensis Millard and Bouillon, 1973: 40 .– Millard, 1975: 133.– Gibbons and Ryland, 1989: 389.– Ramil and Vervoort, 1992: 22.

Lafoeina amirantensis . – Calder, 1991: 10.– Watson, 1994: 147.– Calder and Vervoort, 1998: 15.– Watson, 2000: 5, fig. 2A, B.

Material examined. WAM Z31850. Infertile colonies on Eudendrium racemosum ; one microslide, malinol mount.

Description. Colonies stolonal, creeping on branches of host, stolons flattened, roughened and coated with fine sediment. Hydrothecae minute, arising at intervals along hydrorhiza, subconical to cylindrical, very variable in size, sometimes asymmetrically curved, base expanding from a short, wide pedicel, operculum of numerous segments overlapping at apex, no demarcation between opercular segments and body of hydrotheca. Nematothecae sparse, on hydrorhiza between hydrothecae, minute, clavate.

Figures

Figure 1A–G. A. Eudendrium racemosum from photograph of whole colony. B. Filellum serratum, regenerated hydrotheca. C, D. Lafoeina amirantensis. C, small hydrotheca and nematotheca on hydrorhiza. D, large hydrotheca. E–G. Halecium?tenellum. E, unbranched stem. F, basally annulated hydrophore. G, hydrotheca with strongly everted rim and desmocytes. Scale bar, mm: A, 20. B, C, E, F, G, 0.2. D. 0.1.