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FIGURE 13. Plakinastrella onkodes Uliczka, 1929. a in Anchialine cave-dwelling sponge fauna (Porifera) from La Quebrada, Mexico with the description of the first Mexican stygobiont sponges

FIGURE 13. Plakinastrella onkodes Uliczka, 1929. a) CNPGG‒1496 habitus (ethanol); b) choanosomal skeleton (cross sec- tion, LM); c) triod and calthrops; d) ectosome in the upper flank; (LM); e) diods (LM).

FIGURE 11 in Anchialine cave-dwelling sponge fauna (Porifera) from La Quebrada, Mexico with the description of the first Mexican stygobiont sponges

FIGURE 11. Neosiphonia microtriaeneae sp. nov. Holotype CNPGG-1487 spicules; a-b) Tetraclone desmas, smooth clones with indented endings (LM, SEM); c) juvenile desmas (SEM); d-e) Oxeas hastate (LM, SEM); f) Trichotriaenes (SEM); g-i) Amphiasters to spherasters and spiraster types (LM, SEM).

FIGURE 9 in Anchialine cave-dwelling sponge fauna (Porifera) from La Quebrada, Mexico with the description of the first Mexican stygobiont sponges

FIGURE 9. Discodermia adhaerens van Soest, Meesters & Becking, 2014. a) CNPGG‒1484 in situ; b) ectosomal layer of discotriaenes (LM); c) overall set of spicules (LM); d) discotriaenes (SEM); e) desmas (LM); f) wispy thin endings of oxeas (LM); g) acanthose microrhabds (SEM).

FIGURE 4 in Anchialine cave-dwelling sponge fauna (Porifera) from La Quebrada, Mexico with the description of the first Mexican stygobiont sponges

FIGURE 4. Haliclona (Reniera) stygobia sp. nov. a) Holotype CNPGG‒1482 (ethanol); b) ectosomal skeleton (tangential sec- tion, LM); c) choanosomal skeleton (cross section, LM); d-e) strongyle spicule (LM); f-g) oxea spicule (LM).

FIGURE 1. Study area. a in Anchialine cave-dwelling sponge fauna (Porifera) from La Quebrada, Mexico with the description of the first Mexican stygobiont sponges

FIGURE 1. Study area. a) The Yucatan Peninsula, southeastern Mexico; b) Cozumel Island; c) Map of the anchialine cave La Quebrada (lines in brown), arrows indicate the position of the Cenotes: 1) "S-1", 2) "Km-1" and 3) "Roca Bomba". The shaded regions represent the sampling area (Modified from Yañez-Mendoza et al. 2007 and Calderón-Gutiérrez et al. 2018).

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Supplementary material 1 from: Deleva S, Ulloa A, Oliveira HFM, Simov N, Didonna F, Chaverri G (2023) Cave-dwelling fauna of Costa Rica: current state of knowledge and future research perspectives. Subterranean Biology 47: 29-62. https://doi.org/10.3897/subtbiol.47.113219

Dataset of cave-dwelling organisms occurring in Costa Rica

FIGURE 12 in Anchialine cave-dwelling sponge fauna (Porifera) from La Quebrada, Mexico with the description of the first Mexican stygobiont sponges

FIGURE 12. Diplastrella cozumella sp. nov. a) Holotype CNPGG‒1496 in vivo; b) surface with protruding tylostyles (ethanol); c) overall set of spicules (LM); d) tylostyle endings (LM); e) diplaster to spheraster (SEM); f) tylostyle with blunt end (LM); g) tylostyles with multilobed tylo, and concave endings (SEM).

FIGURE 10 in Anchialine cave-dwelling sponge fauna (Porifera) from La Quebrada, Mexico with the description of the first Mexican stygobiont sponges

FIGURE 10. Neosiphonia microtriaeneae sp. nov. a) Holotype CNPGG-1487 (ethanol); b) skeletal arrangement (transversal section, LM); c) ectosomal skeleton (tangential section, SEM).

FIGURE 6 in Anchialine cave-dwelling sponge fauna (Porifera) from La Quebrada, Mexico with the description of the first Mexican stygobiont sponges

FIGURE 6. Svenzea germanyanezi sp. nov. a) Holotype CNPGG‒2342 (ethanol); b) choanosomal skeleton (cross section, LM); c) granulous cells (LM); d) ectosomal skeleton, note the dermis and punctate surface at the upper flank (tangential section, LM); e) strongyles (LM); f) common spicule oxea II (LM); g) thinner oxea I (LM).

FIGURE 8 in Anchialine cave-dwelling sponge fauna (Porifera) from La Quebrada, Mexico with the description of the first Mexican stygobiont sponges

FIGURE 8. Cinachyrellla kuekenthali (Uliczca, 1929). a) CNPGG‒1479 (ethanol); b) eggs setting around porocalice; c-d) choanosomal skeleton (cross section, LM).

FIGURE 5 in Anchialine cave-dwelling sponge fauna (Porifera) from La Quebrada, Mexico with the description of the first Mexican stygobiont sponges

FIGURE 5. Haliclona (Halichoclona) chankanaabiis sp. nov. a) sponge in situ; b) Holotype CNPGG‒1631 (ethanol), note the osculum on top; c) ectosomal skeleton (tangential section, LM); d) choanosomal skeleton (cross section, LM); e) strongyle spicules (LM); f) oxea spicule (LM).

FIGURE 7 in Anchialine cave-dwelling sponge fauna (Porifera) from La Quebrada, Mexico with the description of the first Mexican stygobiont sponges

FIGURE 7. Siphonidium ramosum (Schmidt, 1870). a) CNPGG‒1624 habitus, CNPGG‒1625 (ethanol), notice the two siphonlike apertures; b) skeletal detail assembled by desmas (SEM); c) tetraclone desmas with smooth clones (SEM); d) tetraclone desmas with warty clones (LM); e) spined tylos of tylostyles (SEM).

FIGURE 3 in Anchialine cave-dwelling sponge fauna (Porifera) from La Quebrada, Mexico with the description of the first Mexican stygobiont sponges

FIGURE 3. Calyx maya sp. nov. a) Holotype CNPGG‒1630 (ethanol); b) ectosome (tangential section, LM); c) skeleton, conule-type (arrows) with 3-4 aligned megascleres (longitudinal section, LM); d) oxea spicules (LM); e) strongyle spicules (LM).

FIGURE 2 in Anchialine cave-dwelling sponge fauna (Porifera) from La Quebrada, Mexico with the description of the first Mexican stygobiont sponges

FIGURE 2. Anchialine cave La Quebrada; a) Cenote S-1 with German Yáñez; b) Cenote Km-1; c) iinterior of the cave, near Cenote Km-1, photo by Laurent Miroult.