384 research outputs found
Calcareous sponges (Porifera, Calcarea) from Florida: new species, new records and biogeographical affinities
No full textLopes, Matheus V., Padua, André, Cóndor-Luján, Báslavi, Klautau, Michelle (2018): Calcareous sponges (Porifera, Calcarea) from Florida: new species, new records and biogeographical affinities. Zootaxa 4526 (2): 127-150, DOI: 10.11646/zootaxa.4526.2.
Bidderia Lopes & Cóndor-Luján & Azevedo & Pérez & Klautau 2018, gen. nov.
No full textGenus Bidderia gen. nov. " Clathrinida with copiously branched and anastomosed choanocyte tubes covered by a well-developed cortex formed mainly by regular triactines measuring at least the double size of the spicules present in the choanosome. Frequently, the inhalant apertures are conspicuous, but show no ornamentation. The exhalant aquiferous system is represented by a well-developed atrium delimited by a membrane with no choanoderm, supported by a specific skeleton of triactines and/or tetractines. Sagittal spicules may be present in the subcortical region. The apical actine of the tetractines has no spines. Aquiferous system is solenoid." Etymology. For George Bidder, in recognition of all his work on the taxonomy of Calcarea.Published as part of Lopes, Matheus V., Cóndor-Luján, Báslavi, Azevedo, Fernanda, Pérez, Thierry & Klautau, Michelle, 2018, A new genus of calcareous sponge discovered in the Caribbean Sea: Bidderia gen. nov. (Porifera, Calcarea, Calcinea) in Zootaxa 4526 (1), DOI: 10.11646/zootaxa.4526.1.4, http://zenodo.org/record/261140
FIGURE 5 in A new genus of calcareous sponge discovered in the Caribbean Sea: Bidderia gen. nov. (Porifera, Calcarea, Calcinea)
No full textFIGURE 5. Maximum Likelihood tree of the C-LSU sequences used in this study. Posterior probability values are shown above the branches, while bootstrap values are below. Only values higher than 80% are indicated. *Sequences newly generated.Published as part of Lopes, Matheus V., Cóndor-Luján, Báslavi, Azevedo, Fernanda, Pérez, Thierry & Klautau, Michelle, 2018, Zootaxa 4526 (1), DOI: 10.11646/zootaxa.4526.1.4, http://zenodo.org/record/261140
FIGURE 9. Calcareous sponges from Florida with Amphi-Atlantic distribution. 1. Ascaltis panis. 2 in Calcareous sponges (Porifera, Calcarea) from Florida: new species, new records and biogeographical affinities
No full textFIGURE 9. Calcareous sponges from Florida with Amphi-Atlantic distribution. 1. Ascaltis panis. 2. Arturia cf. canariensis. 3. Leucaltis clathria. (*) No site collection indicated. Only the Atlantic occurrences of A. cf. canariensis are being considered in this figure (see text and Table 5).Published as part of Lopes, Matheus V., Padua, André, Cóndor-Luján, Báslavi & Klautau, Michelle, 2018, Calcareous sponges (Porifera, Calcarea) from Florida: new species, new records and biogeographical affinities, pp. 127-150 in Zootaxa 4526 (2) on page 140, DOI: 10.11646/zootaxa.4526.2.2, http://zenodo.org/record/261147
FIGURE 4. Ernstia rocasensis morphotypes A in Calcareous sponges (Porifera, Calcarea) from Florida: new species, new records and biogeographical affinities
No full textFIGURE 4. Ernstia rocasensis morphotypes A. Photo in vivo of massive morphotype in mangrove (UFRJPOR 8369). B. Photo in vivo of encrusting morphotype in rocky shore (UFRJPOR 8361). C. Massive morphotype (UFRJPOR 8369) in ethanol. D. Encrusting morphotype (UFRJPOR 8367) in ethanol.Published as part of Lopes, Matheus V., Padua, André, Cóndor-Luján, Báslavi & Klautau, Michelle, 2018, Calcareous sponges (Porifera, Calcarea) from Florida: new species, new records and biogeographical affinities, pp. 127-150 in Zootaxa 4526 (2) on page 135, DOI: 10.11646/zootaxa.4526.2.2, http://zenodo.org/record/261147
FIGURE 6 in Calcareous sponges (Porifera, Calcarea) from Florida: new species, new records and biogeographical affinities
No full textFIGURE 6. Maximum likelihood (ML) tree reconstructed with the ribosomal nuclear marker ITS. Bootstrap values (BS) higher than 80% are given near the branches. Florida specimens are written in bold. Sequences obtained during this study are marked with an asterisk. The white arrow indicates an individual of Ernstia rocasensis with deformed triactines. The numbers between brackets after the species' names correspond to the specimens in Table 1.Published as part of Lopes, Matheus V., Padua, André, Cóndor-Luján, Báslavi & Klautau, Michelle, 2018, Calcareous sponges (Porifera, Calcarea) from Florida: new species, new records and biogeographical affinities, pp. 127-150 in Zootaxa 4526 (2) on page 138, DOI: 10.11646/zootaxa.4526.2.2, http://zenodo.org/record/261147
FIGURE 1 in A new genus of calcareous sponge discovered in the Caribbean Sea: Bidderia gen. nov. (Porifera, Calcarea, Calcinea)
No full textFIGURE 1. Distribution map of Bidderia bicolora gen. nov. sp. nov. in the Caribbean Sea A. Location of the Lesser Antilles in the Caribbean Sea (square). B. Records of Bidderia bicolora gen. nov. sp. nov. in the Lesser Antilles: 1–Anguilla, 2–Saint Martin, and 3–Guadeloupe.Published as part of Lopes, Matheus V., Cóndor-Luján, Báslavi, Azevedo, Fernanda, Pérez, Thierry & Klautau, Michelle, 2018, Zootaxa 4526 (1), DOI: 10.11646/zootaxa.4526.1.4, http://zenodo.org/record/261140
Rowella Lopes & Klautau 2023, GEN. NOV.
No full textGENUS ROWELLA GEN.NOV. Z o o b a n k r e g i s t r a t i o n: h t t p s: / / z o o b a n k.o r g / urn:lsid:zoobank.org:act: 5163DADD-AD0B-47B9- A595-369DACFA329C. Type species: Leucettusa simplicissima Burton, 1932. Synonym: Leucetta – Poléjaeff, 1883: 28; non Haeckel, 1872: 117. Leucettusa – Dendy & Row, 1913: 738; Burton, 1963: 50; Borojević et al., 1990: 258; 2002: 1148; Hooper & Wiedenmayer, 1994: 481; Voigt et al., 2012: 11; Klautau et al., 2013: 454; Riesgo et al., 2018: 835. Etymology: Named after Dr Harold Row for his efforts on the systematics of calcareous sponges and for being the co-author of Leucaltidae. Diagnosis: Leucettidae with an amorphous or tubular massive body.The well-developed cortical skeleton can be comprised of single or multiple layers of triactines and/ or tetractines. The choanosomal and the atrial skeletons are comprised of pygmy triactines and tetractines. Aquiferous system leuconoid, syconoid or both. Remarks: Most of the species here assigned to RoƜella have a tubular body but several others can grow ramifications (e.g. R. simplicissima), while some have a pyriform or amorphous shape (e.g. R. pyriformis and R. dyctiogaster). More than the external morphology, every member of this genus has a peculiar spicule category, named primarily as pygmy triactines and/ or tetractines by Poléjaeff (1883: 67). These spicules are present in the choanosomal and atrial regions, in different proportions among species. We opt to follow Poléjaeff’s termination and refer to these spicules as pygmy in our descriptions. It is important to highlight that Leucaltis and RoƜella were not recovered as sister-taxa. Hence, pygmy spicules are different from the small choanosomal and atrial spicules of Leucaltis, differing from what was previously thought (e.g. Borojević et al., 1990). Pygmy spicules may have even a reduced actine (assuming a V-shape). As Poléjaeff (1883) just called them pygmy, not defining them, we are defining them by their size range (from 10.0–83.0 μm length to 2.5–13.0 μm width) and location scattered in the choanosomal and atrial skeletons. The presence of these morphological traits should be considered in the diagnosis of the genus. We could not resolve doubts on Leucettusa soyo (Hôzawa, 1933). This species had its position questioned in previous works (e.g. Dendy & Row, 1913; Rapp, 2004; Cavalcanti et al., 2013) and was allocated in different calcinean genera. Hôzawa’s (1933) description is doubtful, because important morphological characters, such as the presence of anastomosed tubes, were not clearly mentioned. He described a massive sponge, with radial choanocyte chambers around the atrium. Yet, he also mentioned the presence of ‘ascon-tubes’ and described the aquiferous system as ‘Dendy’s type D’ (Dendy, 1891), i.e. solenoid (Cavalcanti & Klautau, 2011). This is the only description available for this species and it is not satisfactory for its identification. We consider this a case of species inquirenda and highlight Cavalcanti et al. ’s (2013) statement that its position is uncertain and new material is necessary to make a proper genus assignment. Scope: Ten previously described ‘ Leucettusa ’ species are being transferred to the new genus RoƜella: R. connectens (Brøndsted, 1926); R. dictyogaster (Row & Hôzawa, 1931); R. haeckeliana (Poléjaeff, 1883); R. imperfecta (Poléjaeff, 1883); R. lancifera (Dendy, 1924); R. mariae (Brøndsted, 1926); R. pyriformis (Brønsted, 1926); R. simplicissima (Burton, 1932); R. tubulosa (Dendy, 1924) and R. Ʋera (Poléjaeff, 1883). Leucettusa nuda (Azevedo et al., 2009) is considered a junior synonym of R. simplicissima. Leucettusa soyo (Hôzawa, 1933) is considered species inquirenda.Published as part of Lopes, Matheus Vieira & Klautau, Michelle, 2023, Phylogeny and revision of Leucaltis and Leucettusa (Porifera: Calcarea), with new classification proposals and description of a new type of aquiferous system, pp. 691-746 in Zoological Journal of the Linnean Society 198 on pages 715-716, DOI: 10.1093/zoolinnean/zlad008, http://zenodo.org/record/789415
Clathrina Gray 1867
No full textGenus <i>Clathrina</i> Gray, 1867 <p> <b>Diagnosis.</b> "Calcinea in which the cormus comprises anastomosed tubes. A stalk may be present. The skeleton contains regular (equiangular and equiradiate) and/or parasagittal triactines, to which diactines and tripods may be added. Asconoid aquiferous system" (Klautau <i>et al</i>. 2013).</p>Published as part of <i>Lopes, Matheus V., Padua, André, Cóndor-Luján, Báslavi & Klautau, Michelle, 2018, Calcareous sponges (Porifera, Calcarea) from Florida: new species, new records and biogeographical affinities, pp. 127-150 in Zootaxa 4526 (2)</i> on page 131, DOI: 10.11646/zootaxa.4526.2.2, <a href="http://zenodo.org/record/2611472">http://zenodo.org/record/2611472</a>
FIGURE 3 in A new genus of calcareous sponge discovered in the Caribbean Sea: Bidderia gen. nov. (Porifera, Calcarea, Calcinea)
No full textFIGURE 3. Bidderia bicolora gen. nov. sp. nov. Preserved specimen and skeleton of the holotype (UFRJPOR 8227). A. The arrow indicates the atrial membrane. B. Oscular membrane (specimen UFRJPOR 8302). C. Cross-section. D. Skeleton of the subcortical region. E. Tangential section of the cortex F. Skeleton of the choanocyte tubes. (Abbreviations: cx = cortex, ct = choanocyte tubes, at = atrium).Published as part of Lopes, Matheus V., Cóndor-Luján, Báslavi, Azevedo, Fernanda, Pérez, Thierry & Klautau, Michelle, 2018, Zootaxa 4526 (1), DOI: 10.11646/zootaxa.4526.1.4, http://zenodo.org/record/261140
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