Crella (Pytheas) santacruzae Fernandez, Gastaldi, Thompson & Hajdu 2021, sp. nov.
Crella ( Pytheas ) santacruzae Fernandez, Gastaldi, Thompson & Hajdu, sp. nov. (Tables 2–3; Figures 6–7) Type locality. off Santa Cruz province, Argentina sea. Material examined. Holotype — ZIN 12081, Stn. 128 (- 47.28333333 S, - 59.90000000 W; off Santa Cruz province, Argentine Sea), 750 m dept...
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2021
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Online Access: | https://dx.doi.org/10.5281/zenodo.5572191 https://zenodo.org/record/5572191 |
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record_format |
openpolar |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
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unknown |
topic |
Biodiversity Taxonomy Animalia Porifera Demospongiae Poecilosclerida Crellidae Crella Crella santacruzae |
spellingShingle |
Biodiversity Taxonomy Animalia Porifera Demospongiae Poecilosclerida Crellidae Crella Crella santacruzae Fernandez, Julio C. C. Gastaldi, Marianela Zapata-Hernández, Germán Pardo, Luis M. Thompson, Fabiano L. Hajdu, Eduardo Crella (Pytheas) santacruzae Fernandez, Gastaldi, Thompson & Hajdu 2021, sp. nov. |
topic_facet |
Biodiversity Taxonomy Animalia Porifera Demospongiae Poecilosclerida Crellidae Crella Crella santacruzae |
description |
Crella ( Pytheas ) santacruzae Fernandez, Gastaldi, Thompson & Hajdu, sp. nov. (Tables 2–3; Figures 6–7) Type locality. off Santa Cruz province, Argentina sea. Material examined. Holotype — ZIN 12081, Stn. 128 (- 47.28333333 S, - 59.90000000 W; off Santa Cruz province, Argentine Sea), 750 m depth, coll. RV “ Zund ”, 18 th March 1974. Fragment of holotype und MNRJ 22479; Paratype — ZIN 12082, same data as the holotype. Fragment of Paratype under MNRJ 22438. Diagnosis. Crella ( Pytheas ) occurring in the deep southern Atlantic, with tornotes (427–576/7.8–12 µm), two categories of acanthostyles (choanosomal, 375–563/9.1–13.5 µm; ectosomal, 92–119/4.3–7.1 µm) and a single category of arcuate isochelae (22–30.9 µm). Description. Only two, small, preserved fragments (Figs. 6A–D); holotype, 2.85 (L) x 1.28 (W) x 0.6 cm (H) and paratype, 2 (L) x 1 (W) x 0.8 cm (H). Surface irregular, slightly hispid, folded and wrinkled at parts, or smoother, with a thin, easily detachable membrane. Oscules and pores not evident in the fragments. Consistency compressible and resilient, texture soft. Color in spirit dirty beige. Skeleton. Plumose architecture (Fig. 7A). Ectosomal region with tornotes in bundles (up to 12 spicules) and in bouquets, which rarely protrude to the surface, up to 50 µm high (Figs. B–D). Ectosomal acanthostyles in tangential to paratangential arrangement at the surface making a continuous layer, ca. 50 µm thick (Figs. 7D–F). Choanosomal region with tornotes in tracts (up to 12 spicules). Thick tracts of choanosomal acanthostyles (more than 15 spicules) at the base of the choanosome. Several ectosomal acanthostyles and arcuate isochelae occur scattered throughout the choanosome. All categories of acanthostyles (ectosomal and choanosomal) are distinguished by size (length and width) and patterns of spination. In spongin there are wide rounded subectosomal (150–700 µm longer length) and choanosomal channels (ca. 1000 µm longer length). No spongin fibers. Spicules. Megascleres (Tables 2–3). Tornotes (Figs. 7G–J, 7O–P), slightly aniso, strongyloid, slightly fusiform, slightly curved to straight, smooth, sometimes with polytylote axis (a few or several tyles, occasionally verrucose); axis may bear very small spines spread all around, or at the tips, in a rough appearance; juvenile forms thinner and scarce: 393– 502.3 (41.3)–576/7.6– 10.1 (1)–12.2 µm. Choanosomal acanthostyles (Figs. 7K–L, 7Q), uncommon, straight to slightly curved, bases blunt to slightly swollen (tyle), tips acerate or mucronate; rarely completely smooth, often variably spined; spines sharp but sometimes rounded, up to 5.4 µm high, mostly concentrated at the basal third, a few scattered elsewhere, straight or curved towards the tips: 372– 484.2 (53.2)–563/9.1– 11.6 (1.1)–13.7 µm. Ectosomal acanthostyles (Figs. 7L–M, 7O, 7R), straight to slightly curved; isodiametric (seldom fusiform), fully spined, blunt bases (no tyle), tips acerate and sharp; spines variably abundant (more than in choanosomal acanthostyles), sometimes more concentrated at both ends, large (up to 6 µm high), straight and sharp: 92– 108.4 (7.5)–122/4.2– 5.4 (0.8)–7.1 µm. Microscleres (Tables 2–3), arcuate isochelae (Figs. 7N, 7S), axis slightly curved, alae rounded and slightly short; distance between opposite front alae, ca. 1/3 (or less) of maximum chelae length: 22– 25.2 (2.5)–31 µm. Ecology. Deep sea species occurring with a diverse set of other sponges: Hymeniacidon sp., Hymenancora sp., Iophon sp., Esperiopsis sp., Phorbas sp., Tedania sp., Latrunculiidae sp., Myxillidae sp., Stelligeridae sp., Haplosclerida sp., Suberitida sp., Hexactinellida sp. The 750 m deep isobath is situated in the domains of the Antarctic Intermediate Water. Distribution. Known only from its type locality, in the deep south-western Atlantic (Fig. 1). Etymology. The name ‘santacruzae’ is a reference to the Argentine province Santa Cruz, off which the type locality of the new species is located. Remarks. The new deep-waters southwestern Atlantic species is set apart from both new shallow-waters southeastern Pacific species described above, mainly in having a single category of choanosomal acanthostyles, much larger than those observed in both Pacific species (Table 2). Among additional Crella ( Pytheas ) spp., three appear close to C. ( P ) santacruzae Fernandez, Gastaldi, Thompson & Hajdu , sp. nov. : viz. , C. ( P. ) basispinosa Burton, 1931 (Burton 1931a), from Norway, C. ( P. ) fristedti (Dendy, 1924), and C. (P.) novaezealandiae (Bergquist & Fromont, 1988), from New Zealand (Table 3). These three species have large, paucispined acanthostyles similar to those of the new species. Moreover, C. ( P. ) basispinosa has subtylote to strongyloid tornotes that also approach the condition seen in Crella ( P. ) santacruzae Fernandez, Gastaldi, Thompson & Hajdu , sp. nov. Yet, the new species con be distinguished from C. ( P. ) basispinosa by the smaller length of its ectosomal acanthostyles (92–122 µm long vs. 250 µm, respectively), from C. ( P. ) fristedti by larger and stouter ectosomal diactines (393–576/7.6–12.2 µm vs. 212–242/3–4.5 µm, respectively), and from C. ( P. ) novaezealandiae by larger ectosomal diactines (393–576 µm vs. 240–300 µm, respectively) and chelae (22–31 µm vs. 11–20 µm, respectively). Furthermore, the immense distances between the areas of occurrence of these species make conspecificity unlikely. : Published as part of Fernandez, Julio C. C., Gastaldi, Marianela, Zapata-Hernández, Germán, Pardo, Luis M., Thompson, Fabiano L. & Hajdu, Eduardo, 2021, New species of Crella (Pytheas) Topsent, 1890 and Crellomima Rezvoi, 1925 (Crellidae, Poecilosclerida, Demospongiae) from Chilean shallow and Argentinean deep waters, with a synthesis on the known phylogenetic relationships of crellid sponges, pp. 353-379 in Zootaxa 5052 (3) on pages 366-369, DOI: 10.11646/zootaxa.5052.3.3, http://zenodo.org/record/5572169 : {"references": ["Burton, M. (1931 a) The Folden Fiord. Report on the sponges collected by Mr. Soot-Ryven in the Folden Fiord in the year 1923. TromsO Museum Skrifter, 1, 1 - 8.", "Dendy, A. (1924) Porifera. Part I. Non-Antarctic sponges. Natural History Report. British Antarctic (Terra Nova) Expedition, 1910, Zoology, 6 (3), 269 - 392. [pls. I - XV]", "Bergquist, P. R. & Fromont, P. J. (1988) The Marine Fauna of New Zealand: Porifera, Demospongiae, Part 4 (Poecilosclerida). New Zealand Oceanographic Institute Memoir, 96, 1 - 197."]} |
format |
Text |
author |
Fernandez, Julio C. C. Gastaldi, Marianela Zapata-Hernández, Germán Pardo, Luis M. Thompson, Fabiano L. Hajdu, Eduardo |
author_facet |
Fernandez, Julio C. C. Gastaldi, Marianela Zapata-Hernández, Germán Pardo, Luis M. Thompson, Fabiano L. Hajdu, Eduardo |
author_sort |
Fernandez, Julio C. C. |
title |
Crella (Pytheas) santacruzae Fernandez, Gastaldi, Thompson & Hajdu 2021, sp. nov. |
title_short |
Crella (Pytheas) santacruzae Fernandez, Gastaldi, Thompson & Hajdu 2021, sp. nov. |
title_full |
Crella (Pytheas) santacruzae Fernandez, Gastaldi, Thompson & Hajdu 2021, sp. nov. |
title_fullStr |
Crella (Pytheas) santacruzae Fernandez, Gastaldi, Thompson & Hajdu 2021, sp. nov. |
title_full_unstemmed |
Crella (Pytheas) santacruzae Fernandez, Gastaldi, Thompson & Hajdu 2021, sp. nov. |
title_sort |
crella (pytheas) santacruzae fernandez, gastaldi, thompson & hajdu 2021, sp. nov. |
publisher |
Zenodo |
publishDate |
2021 |
url |
https://dx.doi.org/10.5281/zenodo.5572191 https://zenodo.org/record/5572191 |
long_lat |
ENVELOPE(16.546,16.546,68.801,68.801) ENVELOPE(166.733,166.733,-72.550,-72.550) ENVELOPE(-62.233,-62.233,-63.250,-63.250) |
geographic |
Antarctic The Antarctic Pacific Norway New Zealand Argentina Argentine Tromso Burton Fernandez |
geographic_facet |
Antarctic The Antarctic Pacific Norway New Zealand Argentina Argentine Tromso Burton Fernandez |
genre |
Antarc* Antarctic Tromso Tromso |
genre_facet |
Antarc* Antarctic Tromso Tromso |
op_relation |
http://zenodo.org/record/5572169 http://publication.plazi.org/id/E9394F18FF8BF67E6506FFAAFF8CFFD3 http://zoobank.org/FED635BA-B982-400E-B920-1DBA22025EA9 https://zenodo.org/communities/biosyslit https://dx.doi.org/10.11646/zootaxa.5052.3.3 http://zenodo.org/record/5572169 http://publication.plazi.org/id/E9394F18FF8BF67E6506FFAAFF8CFFD3 https://dx.doi.org/10.5281/zenodo.5572185 https://dx.doi.org/10.5281/zenodo.5572187 https://dx.doi.org/10.5281/zenodo.5572171 http://zoobank.org/FED635BA-B982-400E-B920-1DBA22025EA9 https://dx.doi.org/10.5281/zenodo.5572190 https://zenodo.org/communities/biosyslit |
op_rights |
Open Access info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5281/zenodo.5572191 https://doi.org/10.11646/zootaxa.5052.3.3 https://doi.org/10.5281/zenodo.5572185 https://doi.org/10.5281/zenodo.5572187 https://doi.org/10.5281/zenodo.5572171 https://doi.org/10.5281/zenodo.5572190 |
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1766260462153891840 |
spelling |
ftdatacite:10.5281/zenodo.5572191 2023-05-15T13:54:31+02:00 Crella (Pytheas) santacruzae Fernandez, Gastaldi, Thompson & Hajdu 2021, sp. nov. Fernandez, Julio C. C. Gastaldi, Marianela Zapata-Hernández, Germán Pardo, Luis M. Thompson, Fabiano L. Hajdu, Eduardo 2021 https://dx.doi.org/10.5281/zenodo.5572191 https://zenodo.org/record/5572191 unknown Zenodo http://zenodo.org/record/5572169 http://publication.plazi.org/id/E9394F18FF8BF67E6506FFAAFF8CFFD3 http://zoobank.org/FED635BA-B982-400E-B920-1DBA22025EA9 https://zenodo.org/communities/biosyslit https://dx.doi.org/10.11646/zootaxa.5052.3.3 http://zenodo.org/record/5572169 http://publication.plazi.org/id/E9394F18FF8BF67E6506FFAAFF8CFFD3 https://dx.doi.org/10.5281/zenodo.5572185 https://dx.doi.org/10.5281/zenodo.5572187 https://dx.doi.org/10.5281/zenodo.5572171 http://zoobank.org/FED635BA-B982-400E-B920-1DBA22025EA9 https://dx.doi.org/10.5281/zenodo.5572190 https://zenodo.org/communities/biosyslit Open Access info:eu-repo/semantics/openAccess Biodiversity Taxonomy Animalia Porifera Demospongiae Poecilosclerida Crellidae Crella Crella santacruzae Text Taxonomic treatment article-journal ScholarlyArticle 2021 ftdatacite https://doi.org/10.5281/zenodo.5572191 https://doi.org/10.11646/zootaxa.5052.3.3 https://doi.org/10.5281/zenodo.5572185 https://doi.org/10.5281/zenodo.5572187 https://doi.org/10.5281/zenodo.5572171 https://doi.org/10.5281/zenodo.5572190 2021-11-05T12:55:41Z Crella ( Pytheas ) santacruzae Fernandez, Gastaldi, Thompson & Hajdu, sp. nov. (Tables 2–3; Figures 6–7) Type locality. off Santa Cruz province, Argentina sea. Material examined. Holotype — ZIN 12081, Stn. 128 (- 47.28333333 S, - 59.90000000 W; off Santa Cruz province, Argentine Sea), 750 m depth, coll. RV “ Zund ”, 18 th March 1974. Fragment of holotype und MNRJ 22479; Paratype — ZIN 12082, same data as the holotype. Fragment of Paratype under MNRJ 22438. Diagnosis. Crella ( Pytheas ) occurring in the deep southern Atlantic, with tornotes (427–576/7.8–12 µm), two categories of acanthostyles (choanosomal, 375–563/9.1–13.5 µm; ectosomal, 92–119/4.3–7.1 µm) and a single category of arcuate isochelae (22–30.9 µm). Description. Only two, small, preserved fragments (Figs. 6A–D); holotype, 2.85 (L) x 1.28 (W) x 0.6 cm (H) and paratype, 2 (L) x 1 (W) x 0.8 cm (H). Surface irregular, slightly hispid, folded and wrinkled at parts, or smoother, with a thin, easily detachable membrane. Oscules and pores not evident in the fragments. Consistency compressible and resilient, texture soft. Color in spirit dirty beige. Skeleton. Plumose architecture (Fig. 7A). Ectosomal region with tornotes in bundles (up to 12 spicules) and in bouquets, which rarely protrude to the surface, up to 50 µm high (Figs. B–D). Ectosomal acanthostyles in tangential to paratangential arrangement at the surface making a continuous layer, ca. 50 µm thick (Figs. 7D–F). Choanosomal region with tornotes in tracts (up to 12 spicules). Thick tracts of choanosomal acanthostyles (more than 15 spicules) at the base of the choanosome. Several ectosomal acanthostyles and arcuate isochelae occur scattered throughout the choanosome. All categories of acanthostyles (ectosomal and choanosomal) are distinguished by size (length and width) and patterns of spination. In spongin there are wide rounded subectosomal (150–700 µm longer length) and choanosomal channels (ca. 1000 µm longer length). No spongin fibers. Spicules. Megascleres (Tables 2–3). Tornotes (Figs. 7G–J, 7O–P), slightly aniso, strongyloid, slightly fusiform, slightly curved to straight, smooth, sometimes with polytylote axis (a few or several tyles, occasionally verrucose); axis may bear very small spines spread all around, or at the tips, in a rough appearance; juvenile forms thinner and scarce: 393– 502.3 (41.3)–576/7.6– 10.1 (1)–12.2 µm. Choanosomal acanthostyles (Figs. 7K–L, 7Q), uncommon, straight to slightly curved, bases blunt to slightly swollen (tyle), tips acerate or mucronate; rarely completely smooth, often variably spined; spines sharp but sometimes rounded, up to 5.4 µm high, mostly concentrated at the basal third, a few scattered elsewhere, straight or curved towards the tips: 372– 484.2 (53.2)–563/9.1– 11.6 (1.1)–13.7 µm. Ectosomal acanthostyles (Figs. 7L–M, 7O, 7R), straight to slightly curved; isodiametric (seldom fusiform), fully spined, blunt bases (no tyle), tips acerate and sharp; spines variably abundant (more than in choanosomal acanthostyles), sometimes more concentrated at both ends, large (up to 6 µm high), straight and sharp: 92– 108.4 (7.5)–122/4.2– 5.4 (0.8)–7.1 µm. Microscleres (Tables 2–3), arcuate isochelae (Figs. 7N, 7S), axis slightly curved, alae rounded and slightly short; distance between opposite front alae, ca. 1/3 (or less) of maximum chelae length: 22– 25.2 (2.5)–31 µm. Ecology. Deep sea species occurring with a diverse set of other sponges: Hymeniacidon sp., Hymenancora sp., Iophon sp., Esperiopsis sp., Phorbas sp., Tedania sp., Latrunculiidae sp., Myxillidae sp., Stelligeridae sp., Haplosclerida sp., Suberitida sp., Hexactinellida sp. The 750 m deep isobath is situated in the domains of the Antarctic Intermediate Water. Distribution. Known only from its type locality, in the deep south-western Atlantic (Fig. 1). Etymology. The name ‘santacruzae’ is a reference to the Argentine province Santa Cruz, off which the type locality of the new species is located. Remarks. The new deep-waters southwestern Atlantic species is set apart from both new shallow-waters southeastern Pacific species described above, mainly in having a single category of choanosomal acanthostyles, much larger than those observed in both Pacific species (Table 2). Among additional Crella ( Pytheas ) spp., three appear close to C. ( P ) santacruzae Fernandez, Gastaldi, Thompson & Hajdu , sp. nov. : viz. , C. ( P. ) basispinosa Burton, 1931 (Burton 1931a), from Norway, C. ( P. ) fristedti (Dendy, 1924), and C. (P.) novaezealandiae (Bergquist & Fromont, 1988), from New Zealand (Table 3). These three species have large, paucispined acanthostyles similar to those of the new species. Moreover, C. ( P. ) basispinosa has subtylote to strongyloid tornotes that also approach the condition seen in Crella ( P. ) santacruzae Fernandez, Gastaldi, Thompson & Hajdu , sp. nov. Yet, the new species con be distinguished from C. ( P. ) basispinosa by the smaller length of its ectosomal acanthostyles (92–122 µm long vs. 250 µm, respectively), from C. ( P. ) fristedti by larger and stouter ectosomal diactines (393–576/7.6–12.2 µm vs. 212–242/3–4.5 µm, respectively), and from C. ( P. ) novaezealandiae by larger ectosomal diactines (393–576 µm vs. 240–300 µm, respectively) and chelae (22–31 µm vs. 11–20 µm, respectively). Furthermore, the immense distances between the areas of occurrence of these species make conspecificity unlikely. : Published as part of Fernandez, Julio C. C., Gastaldi, Marianela, Zapata-Hernández, Germán, Pardo, Luis M., Thompson, Fabiano L. & Hajdu, Eduardo, 2021, New species of Crella (Pytheas) Topsent, 1890 and Crellomima Rezvoi, 1925 (Crellidae, Poecilosclerida, Demospongiae) from Chilean shallow and Argentinean deep waters, with a synthesis on the known phylogenetic relationships of crellid sponges, pp. 353-379 in Zootaxa 5052 (3) on pages 366-369, DOI: 10.11646/zootaxa.5052.3.3, http://zenodo.org/record/5572169 : {"references": ["Burton, M. (1931 a) The Folden Fiord. Report on the sponges collected by Mr. Soot-Ryven in the Folden Fiord in the year 1923. TromsO Museum Skrifter, 1, 1 - 8.", "Dendy, A. (1924) Porifera. Part I. Non-Antarctic sponges. Natural History Report. British Antarctic (Terra Nova) Expedition, 1910, Zoology, 6 (3), 269 - 392. [pls. I - XV]", "Bergquist, P. R. & Fromont, P. J. (1988) The Marine Fauna of New Zealand: Porifera, Demospongiae, Part 4 (Poecilosclerida). New Zealand Oceanographic Institute Memoir, 96, 1 - 197."]} Text Antarc* Antarctic Tromso Tromso DataCite Metadata Store (German National Library of Science and Technology) Antarctic The Antarctic Pacific Norway New Zealand Argentina Argentine Tromso ENVELOPE(16.546,16.546,68.801,68.801) Burton ENVELOPE(166.733,166.733,-72.550,-72.550) Fernandez ENVELOPE(-62.233,-62.233,-63.250,-63.250) |