Description of a new alpheid shrimp from the tropical western Atlantic (Decapoda: Caridea: <i>Alpheus</i>)

Anker, Arthur

doi:10.11606/1807-0205/2024.64.022

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ARTICLE • Pap. Avulsos Zool. 64 • 2024 • https://doi.org/10.11606/1807-0205/2024.64.022 linkcopy

Description of a new alpheid shrimp from the tropical western Atlantic (Decapoda: Caridea: Alpheus)

Authorship SCIMAGO INSTITUTIONS RANKINGS

A new shallow-water species of the alpheid shrimp genus AlpheusFabricius, 1798 is described based on five specimens from Maceió, Alagoas, northeastern Brazil. Alpheus schubarti sp. nov., belongs to the A. paracrinitusMiers, 1881 species complex and is most closely related to the eastern Pacific A. rostratusKim & Abele, 1988, from which it can be separated by several morphological differences and the colour pattern of the major and minor chelae.

Keywords
Decapod crustaceans; Alpheidae; Snapping shrimp; Transisthmian speciation; New taxon; West Atlantic

Authorship

person Arthur Anker

schoolUniversidade Federal de Pelotas (UFPEL), Instituto de Biologia (IB), Departamento de Ecologia, Zoologia e Genética (DEZG). Capão do Leão, RS, Brasil. E‑mail: arthuranker7@gmail.comUniversidade Federal de PelotasBrasilCapão do Leão, RS, BrasilUniversidade Federal de Pelotas (UFPEL), Instituto de Biologia (IB), Departamento de Ecologia, Zoologia e Genética (DEZG). Capão do Leão, RS, Brasil. E‑mail: arthuranker7@gmail.com

0000-0002-5350-4267

Edited by:

Marcos Domingos Siqueira Tavares

CONFLICT OF INTEREST:

Author declares there are no conflicts of interest.

SCIMAGO INSTITUTIONS RANKINGS

Universidade Federal de Pelotas (UFPEL), Instituto de Biologia (IB), Departamento de Ecologia, Zoologia e Genética (DEZG). Capão do Leão, RS, Brasil. E‑mail: arthuranker7@gmail.comUniversidade Federal de PelotasBrasilCapão do Leão, RS, BrasilUniversidade Federal de Pelotas (UFPEL), Instituto de Biologia (IB), Departamento de Ecologia, Zoologia e Genética (DEZG). Capão do Leão, RS, Brasil. E‑mail: arthuranker7@gmail.com

Figures

Figures (7)

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Figure 1 Alpheus schubartisp. nov.: holotype male (cl 4.45 mm) from Maceió, Alagoas, Brazil, MZUSP 45945 [A G]; (A) frontal region, dorsal; (B) same, lateral; (C) telson, dorsal; (D) tooth on ventromesial carina of first article of antennular peduncle, lateral; (E) third maxilliped, lateral; (F) second pleopod, lateral; (G) uropod, dorsal. Alpheus rostratus Kim & Abele, 1988: male (cl 6.15 mm) from Las Perlas Islands, Panama, MZUSP 45952 [H, I]; (H) frontal region, dorsal; (I) third maxilliped, lateral.

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Figure 2 Alpheus schubartisp. nov.: holotype male (cl 4.45 mm) from Maceió, Alagoas, Brazil, MZUSP 45945; (A) major (left) cheliped, ischium, merus and carpus, mesial; (B) same, chela and carpus, mesial; (C) same, chela and carpus, lateral; (D) same, dactylus, lateral; (E) minor (right) cheliped, ischium, merus and carpus, mesial; (F) same, chela and carpus, mesial; (G) same, chela and carpus, lateral.

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Figure 3 Alpheus schubartisp. nov.: holotype male (cl 4.45 mm) from Maceió, Alagoas, Brazil, MZUSP 45945; (A) second pereiopod, lateral; (B) third pereiopod, lateral; (C) fourth pereiopod, lateral; (D) fifth pereiopod, lateral.

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Figure 4 Alpheus schubartisp. nov.: holotype male (cl 4.45 mm) from Maceió, Alagoas, Brazil, MZUSP 45945, in dorsal view (A); paratype male (cl 4.50 mm) from the same locality, MZUSP 45946, dorsal view (B). Photographs by the author.

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Figure 5 Alpheus schubartisp. nov.: paratype ovigerous female (cl 4.95 mm) from Maceió, Alagoas, Brazil, MZUSP 45947, in dorsal (A) and lateral (B) views. Photographs by the author.

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Figure 6 Alpheus rostratusKim & Abele, 1988: male (cl 6.15 mm) from Contadora, Las Perlas Islands, Panama, MZUSP 45952, in dorsal view (A); male (cl indet.) from Coiba Island, Panama, not deposited (entire specimen used for analysis of associated microbiota), in dorsolateral view (B). Photographs by P.P.G. Pachelle (A) and by the author (B).

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Figure 7 Alpheus cf. paracrinitus Miers, 1881: male (cl 5.30 mm) from Maceió, Alagoas, Brazil, MZUSP 45949, in dorsal (A) and lateral (B) views. Photographs by the author.

imageFigure 1 Alpheus schubartisp. nov.: holotype male (cl 4.45 mm) from Maceió, Alagoas, Brazil, MZUSP 45945 [A G]; (A) frontal region, dorsal; (B) same, lateral; (C) telson, dorsal; (D) tooth on ventromesial carina of first article of antennular peduncle, lateral; (E) third maxilliped, lateral; (F) second pleopod, lateral; (G) uropod, dorsal. Alpheus rostratus Kim & Abele, 1988: male (cl 6.15 mm) from Las Perlas Islands, Panama, MZUSP 45952 [H, I]; (H) frontal region, dorsal; (I) third maxilliped, lateral. open_in_new

imageFigure 2 Alpheus schubartisp. nov.: holotype male (cl 4.45 mm) from Maceió, Alagoas, Brazil, MZUSP 45945; (A) major (left) cheliped, ischium, merus and carpus, mesial; (B) same, chela and carpus, mesial; (C) same, chela and carpus, lateral; (D) same, dactylus, lateral; (E) minor (right) cheliped, ischium, merus and carpus, mesial; (F) same, chela and carpus, mesial; (G) same, chela and carpus, lateral. open_in_new

imageFigure 3 Alpheus schubartisp. nov.: holotype male (cl 4.45 mm) from Maceió, Alagoas, Brazil, MZUSP 45945; (A) second pereiopod, lateral; (B) third pereiopod, lateral; (C) fourth pereiopod, lateral; (D) fifth pereiopod, lateral. open_in_new

imageFigure 4 Alpheus schubartisp. nov.: holotype male (cl 4.45 mm) from Maceió, Alagoas, Brazil, MZUSP 45945, in dorsal view (A); paratype male (cl 4.50 mm) from the same locality, MZUSP 45946, dorsal view (B). Photographs by the author. open_in_new

imageFigure 5 Alpheus schubartisp. nov.: paratype ovigerous female (cl 4.95 mm) from Maceió, Alagoas, Brazil, MZUSP 45947, in dorsal (A) and lateral (B) views. Photographs by the author. open_in_new

imageFigure 6 Alpheus rostratusKim & Abele, 1988: male (cl 6.15 mm) from Contadora, Las Perlas Islands, Panama, MZUSP 45952, in dorsal view (A); male (cl indet.) from Coiba Island, Panama, not deposited (entire specimen used for analysis of associated microbiota), in dorsolateral view (B). Photographs by P.P.G. Pachelle (A) and by the author (B). open_in_new

imageFigure 7 Alpheus cf. paracrinitus Miers, 1881: male (cl 5.30 mm) from Maceió, Alagoas, Brazil, MZUSP 45949, in dorsal (A) and lateral (B) views. Photographs by the author. open_in_new

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