Aaptos potiguarensis

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Carvalho, Mariana De S., Da Silva, Suzane M., Pinheiro, Ulisses (2013) Two new species of Aaptos (Demospongiae, Hadromerida) from Brazil (western Atlantic). Zootaxa 3750 : 362 – 363, doi. Versioned wiki page: 2016-12-28, version 117768, https://species-id.net/w/index.php?title=Aaptos_potiguarensis&oldid=117768 , contributors (alphabetical order): PlaziBot.

Citation formats to copy and paste

BibTeX:

@article{Carvalho2013Zootaxa3750,
author = {Carvalho, Mariana De S. AND Da Silva, Suzane M. AND Pinheiro, Ulisses},
journal = {Zootaxa},
title = {Two new species of Aaptos (Demospongiae, Hadromerida) from Brazil (western Atlantic)},
year = {2013},
volume = {3750},
issue = {},
pages = {362 -- 363},
doi = {TODO},
url = {},
note = {Versioned wiki page: 2016-12-28, version 117768, https://species-id.net/w/index.php?title=Aaptos_potiguarensis&oldid=117768 , contributors (alphabetical order): PlaziBot.}

}

RIS/ Endnote:

TY - JOUR
T1 - Two new species of Aaptos (Demospongiae, Hadromerida) from Brazil (western Atlantic)
A1 - Carvalho, Mariana De S.
A1 - Da Silva, Suzane M.
A1 - Pinheiro, Ulisses
Y1 - 2013
JF - Zootaxa
JA -
VL - 3750
IS -
UR - http://dx.doi.org/TODO
SP - 362
EP - 363
PB -
M1 - Versioned wiki page: 2016-12-28, version 117768, https://species-id.net/w/index.php?title=Aaptos_potiguarensis&oldid=117768 , contributors (alphabetical order): PlaziBot.

M3 - doi:TODO

Wikipedia/ Citizendium:

<ref name="Carvalho2013Zootaxa3750">{{Citation
| author = Carvalho, Mariana De S., Da Silva, Suzane M., Pinheiro, Ulisses
| title = Two new species of Aaptos (Demospongiae, Hadromerida) from Brazil (western Atlantic)
| journal = Zootaxa
| year = 2013
| volume = 3750
| issue =
| pages = 362 -- 363
| pmid =
| publisher =
| doi = TODO
| url =
| pmc =
| accessdate = 2020-02-28

}} Versioned wiki page: 2016-12-28, version 117768, https://species-id.net/w/index.php?title=Aaptos_potiguarensis&oldid=117768 , contributors (alphabetical order): PlaziBot.</ref>


Taxonavigation

Ordo: Hadromerida
Familia: Suberitidae
Genus: Aaptos

Name

Aaptos potiguarensis Carvalho, Mariana De S., 2013Wikispecies linkPensoft Profile

  • Aaptos potiguarensis Carvalho, Mariana De S., 2013, Zootaxa 3750: 362-363.

Materials Examined

Type material.Holotype: UFPEPOR 45 —Campaign BPOT 0 2, station 33 (Potiguar Basin, Rio Grande do Norte State, 05°00´03.9”S – 36 ° 25´12.1 ”W), 7–10.2 m depth, coll. R/V ‘Astro Garoupa’, 28 /V/ 2003. Schyzoholotype: MNRJ 16685.

Description

Paratype: UFPEPOR 46 —Campaign BPOT 0 2, station 33 (Potiguar Basin, Rio Grande do Norte State, 05°00´03.9”S – 36 ° 25´12.1 ”W), 7–10.2 m depth, coll. R/V ‘Astro Garoupa’, 28 /V/ 2003. Schyzoparatype: MNRJ 16686.

Diagnosis

Diagnosis.Aaptos with an ectosomal skeleton without subectosomal cavities, where small styles form a palisade at the surface. Spicules are one category of strongyloxeas with rounded tips (301–1562 µm in length and 8–43 µm thick) and one category of styles (220–590 µm in length and 2.5–11 µm thick).

Description

Description. Specimens are massive, up to 18.8 cm in length and 10.9 cm width (holotype; Fig. 4 A). The base has incrustations of calcareous substrate. Oscules rounded, up to 3 mm in diameter, dispersed on the surface. Surface is irregular, uneven. Consistency is firm, almost incompressible. Color is unknown in the holotype, and light brown alive and beige in spirit, in the paratype. Skeleton. Ectosomal skeleton with strongyloxeas and styles crossing the surface. Small styles form a palisade at the surface, in which the ends of the strongyloxeas are also present. Choanosomal skeleton is very dense, composed mainly of tracts of strongyloxeas with a radial arrangement, protruding beyond the surface of the sponge (Fig. 4 B). Little collagen is seen.

Spicules. Megascleres in two categories (Tab. 1, Fig. 4 C–D). Choanosomal strongyloxeas (Fig. 4 C)—smooth, highly fusiform, usually straight or slightly curved, with rounded tips: 301–1562 µm in length and 8–43 µm thick. Ectosomal styles (Fig. 4 D)—smooth, straight, occasionally curved: 220–590 µm in length and 2.5–11 µm thick. The distinction between strongyloxeas and styles is very subtle and, as in Aaptos hajdui sp. nov., we consider strongyloxeas as fusiform or slightly fusiform and styles are isodiametric.

Etymology

Etymology. The specific epithet potiguarensis is refers to its type locality, from the Potiguar Basin.

Distribution

Distribution. Provisionally endemic from Potiguar Basin (Rio Grande do Norte State, north-eastern Brazil). Ecology. Bryozoans and polychaetes were found associated to both specimens. This species occurs in shallow waters, from 7 to 10 m depth on rocky substrate.

Discussion

Remarks. Nine species of the genus Aaptos have tylostyles and/or subtylostyles as ectosomal spicules, thus differing from A. potiguarensis sp. nov.: A. aaptos (holotype and lectotype descriptions sensu Van Soest 2002 and Kelly-Borges & Bergquist 1994); A. alphiensis; A. globosum; A. kanuux; A. laxosuberites; A papillata; A. robustus; A. rosacea; and A. tentum. Other species such as A. confertus and A. horrida possess oxeas as dermal or additional spicules, and A. pernucleata have true oxeas as main megascleres (as observed in figures of Carter, 1870). Aaptos aaptos possesses two categories of strongyloxeas, in a similar size range of the strongyloxeas of A. potiguarensis sp. nov., although some other differences can be observed. Besides having styles to substylostyles as dermal spicules, A. aaptos (holotype and lectotype, see Table 2) has its category smaller than in A. potiguarensis sp. nov. Aaptos hajdui sp. nov. is different from A. potiguarensis sp. nov. due to the telescopic/mucronate ends of the strongyloxeas in the former, in addition to the differences in the skeleton, as the presence of subectosomal cavities and the megascleres of the choanosomal skeleton forming bouquets near the surface. Besides, A. hajdui sp. nov. is globular and almost black after fixation, while A. potiguarensis sp. nov. is massive, turning beige after fixation in ethanol.

Taxon Treatment

  • Carvalho, Mariana De S.; Da Silva, Suzane M.; Pinheiro, Ulisses; 2013: Two new species of Aaptos (Demospongiae, Hadromerida) from Brazil (western Atlantic), Zootaxa 3750: 362-363. doi
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