FIGURE 6 in A new species of freshwater sponge, Heteromeyenia barlettai sp. nov. from an aquarium in São Paulo, Brazil (Spongillida: Spongillidae)

FIGURE 6. Scanning electron microscopy images of the gemmules of Heteromeyenia insignis Weltner, 1895 (MNRJ 0002). (a) Gemmule. (b) Foramen of gemmule. (c) Well developed, tri-layered gemmular theca. Scale bars: a 300 µm, b, c 50 µm.Published as part of Pinheiro, Ulisses, Calheira, Ludimila & Hajdu, Eduardo, 2015, A new species of freshwater sponge, Heteromeyenia barlettai sp. nov. from an aquarium in São Paulo, Brazil (Spongillida: Spongillidae), pp. 351-363 in Zootaxa 4034 (2) on page 360, DOI: 10.11646/zootaxa.4034.2.7, http://zenodo.org/record/28984