Mycale (Grapelia) ancorina ( Whitelegge, 1906 )

Van, Rob W. M., Aryasari, Ratih & De, Nicole J., 2021, Mycale species of the tropical Indo-West Pacific (Porifera, Demospongiae, Poecilosclerida), Zootaxa 4912 (1), pp. 1-212 : 88

publication ID 10.11646/zootaxa.4912.1.1

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Mycale (Grapelia) ancorina ( Whitelegge, 1906 )


Mycale (Grapelia) ancorina ( Whitelegge, 1906) View in CoL

Figs 55 View FIGURE 55 a–e

Esperella ancorina Whitelegge, 1906: 466 View in CoL , pl. XLIII, fig. 6.3.

Mycale parasitica View in CoL ; Hooper & Wiedenmayer 1994: 289 (not: Carter 1885 = Mycale (Grapelia) australis View in CoL ).

Mycale (Grapelia) ancorina View in CoL ; Hajdu 1995: 79, figs 6.17, 25–33.

Not: Mycale ancorina ; Capon & Macleod 1987: 225 (= Mycale (Arenochalina) mirabilis ).

Material examined. ZMA Por. 10908, fragment of neotype AMS Z1440, Australia, New South Wales, E of Woollongong, Tethys Expedition stat. 48, depth 100 m, substrate sand and mud to rock, trawl, 18 March 1898 .

Summary description (based on Whitelegge 1906 and Hajdu 1995). Stalked-arborescent ( Fig. 55a View FIGURE 55 ), with thick branches tending to be arranged in one plane, branch length up 23 cm x 2.5 cm in diameter. Surface optically smooth, wrinkled in dried condition. Magnified there are small dermal conules up to 1 mm high. Oscula are scattered, up to 2 mm in diameter. Consistency firm, preserved color dark cream. Skeleton consisting of strong plumoreticulate spicule tracts, 200–400 µm in diameter ending at the surface in spicule brushes carrying a confused mass of tangential spicules. Spicules ( Figs 55 View FIGURE 55 b–e) include robust mycalostyles ( Figs 55b,b View FIGURE 55 1 View FIGURE 1 ) 300–330 x 10–15 µm and three categories of anisochelae, (I) 47–61 µm, ( II) 15–18 µm (I and II are arranged in rosettes of respectively 125 and 40 µm diameter), and ( III) 18–22 µm. Anisochelae I ( Fig. 55c,c View FIGURE 55 1 View FIGURE 1 ) strongly curved with four upper unguiferous alae and squarish lower alae, anisochelae II ( Figs 55d,d View FIGURE 55 1 View FIGURE 1 ) with curved shaft and upper alae fused with frayed rim, with lower alae also with frayed rims, anisochelae III ( Figs 55e View FIGURE 55 ) spurred, palmate with upper lateral alae fused to the shaft and almost meeting the lower lateral alae. No sigmas. Only two specimens from South East Australia have been reliably identified, one of which was lost; other specimens reported under this name ( Capon & Macleod 1987) were found to be misidentified (cf. Hajdu 1995).

Distribution. South East Australia.

Remarks. Hajdu (1995) distinguished this species from the sympatric Mycale (Grapelia) australis ( Gray, 1867) (cf. below) on the branching vs massive-sprawling habitus and the size of anisochelae III being larger than that of anisochelae II. Both species differ from other Mycale (Grapelia) species in lacking sigmas.


Universiteit van Amsterdam, Zoologisch Museum














Mycale (Grapelia) ancorina ( Whitelegge, 1906 )

Van, Rob W. M., Aryasari, Ratih & De, Nicole J. 2021

Mycale parasitica

Hooper, J. N. A. & Wiedenmayer, F. 1994: 289

Esperella ancorina

Whitelegge, T. 1906: 466
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