&lt;p class="HeadingRunIn"&gt;&lt;strong&gt;Three new species of the genus &lt;em&gt;Paraleucilla&lt;/em&gt; Dendy, 1892 (Porifera, Calcarea) from the coast of Bahia State, Northeastern Brazil&lt;/strong&gt;&lt;/p&gt;

Cavalcanti, Fernanda F.; Menegola, Carla; Lanna, Emílio

doi:10.11646/zootaxa.3764.5.3

Cited by 9 publications

(10 citation statements)

References 15 publications

(7 reference statements)

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“…Our findings are in agreement with the issues raised by Cavalcanti et al. (), which suggested that thin fragments of the sponge (especially near the osculum) should be avoided in preparing skeleton slides used for taxonomic identification of species of Paraleucilla . It is possible that thin‐walled individuals of Paraleucilla were previously (mistakenly) considered as Leucilla .…”

Section: Discussionsupporting

confidence: 93%

“…Recently, Cavalcanti et al. () highlighted that the presence of the DZ was variable among specimens of Paraleucilla solangeae Cavalcanti, Menegola, & Lanna and P. oca Cavalcanti, Menegola, & Lanna . Such variability was likewise observed in other species— P. magna (Klautau et al.…”

mentioning

confidence: 90%

“…; Cavalcanti et al. ). Therefore, little is known about any aspect of the biology of the representatives of this genus and family as a whole.…”

mentioning

confidence: 97%

“…Currently, Paraleucilla is composed of 12 accepted species, occurring mainly in circumtropical waters (Cavalcanti et al. ; Klautau et al. ).…”

mentioning

confidence: 99%

“…) , Paraleucilla perlucida Azevedo & Klautau 2007 (Azevedo & Klautau 2007), and Paraleucilla sphaerica Lanna, Cavalcanti, Cardoso, Muricy, & Klautau 2009 (Cavalcanti et al. ). Cavalcanti et al.…”

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The presence of the diagnostic character of the genus Paraleucilla (Amphoriscidae, Calcarea, Porifera) may depend on the volume and body wall thickness of the sponges

Lanna

Rattis

Cavalcanti

2017

Invertebrate Biology

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The main difference between the sponge genera Leucilla and Paraleucilla (Porifera, Calcarea, Amphoriscidae) is the presence of a disorganized zone (DZ) in the inner region of the skeleton of the latter genus. However, it has been repeatedly observed that specimens from different species of Paraleucilla lack this feature. It is assumed that the size of the sponge may have an effect on the presence or the absence of the DZ, but no investigation of this morphological variation has previously tested this hypothesis. Here, we examined this assumption and described the frequency with which the DZ is absent from individuals of Paraleucilla magna. We also investigated possible drivers of the observed variation using generalized linear models to evaluate whether the month of the year, rainfall, reproductive activity, volume, and body wall thickness could influence the presence or the absence of the DZ. The DZ was absent from 46.5% of the analyzed individuals, indicating that it may be misleading to use this trait to identify the genera Leucilla and Paraleucilla. The presence of the DZ in P. magna is influenced negatively by volume and positively by body wall thickness of the individuals. Our results confirm the previous assumptions for the family Amphoriscidae and highlight problems with the current classification of Calcarea. A discussion of the validity of some morphological characters and the importance of analyzing their variation is provided.

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Section: Discussionsupporting

confidence: 93%

mentioning

confidence: 90%

“…; Cavalcanti et al. ). Therefore, little is known about any aspect of the biology of the representatives of this genus and family as a whole.…”

mentioning

confidence: 97%

“…Currently, Paraleucilla is composed of 12 accepted species, occurring mainly in circumtropical waters (Cavalcanti et al. ; Klautau et al. ).…”

mentioning

confidence: 99%

unclassified