A new genus and species of the ghost-shrimp family Callianideidae from the Caribbean coast of Panama (Decapoda: Axiidea)

Anker, Arthur

doi:10.11606/1807-0205/2025.65.009

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ARTICLE • Pap. Avulsos Zool. 65 • 2025 • https://doi.org/10.11606/1807-0205/2025.65.009 linkcopy

A new genus and species of the ghost-shrimp family Callianideidae from the Caribbean coast of Panama (Decapoda: Axiidea)

Authorship SCIMAGO INSTITUTIONS RANKINGS

A peculiar new species of ghost-shrimp from Bocas del Toro Archipelago on the Caribbean coast of Panama is assigned to the genus Trichocallia gen. nov. in the family Callianideidae. The holotype and presently the only known specimen of Trichocallia delicatula sp. nov. was collected with a suction pump on a silty-muddy bottom under a network of decomposing and partly overgrown mangrove roots. The new genus appears to be most closely related to Callianidea H. Milne Edwards, 1837, with two species in the Indo-West Pacific, and Paracallianidea Sakai, 1992, with two species, one in the western Atlantic and one in the eastern Pacific.

Keywords
Malacostraca; Decapod crustacean; New taxon; Caribbean Sea; West Atlantic; Marine biodiversity

Authorship

person Arthur Anker

schoolKing Abdullah University of Science and Technology, Division of Biological and Environmental Science and Engineering. Thuwal, Saudi ArabiaKing Abdullah University of Science and TechnologySaudi ArabiaThuwal, Saudi ArabiaKing Abdullah University of Science and Technology, Division of Biological and Environmental Science and Engineering. Thuwal, Saudi Arabia

0000-0002-5350-4267

CONFLICT OF INTEREST:

Author declares that there is no conflict of interest.

Edited by:

Marcos Domingos Siqueira Tavares

SCIMAGO INSTITUTIONS RANKINGS

King Abdullah University of Science and Technology, Division of Biological and Environmental Science and Engineering. Thuwal, Saudi ArabiaKing Abdullah University of Science and TechnologySaudi ArabiaThuwal, Saudi ArabiaKing Abdullah University of Science and Technology, Division of Biological and Environmental Science and Engineering. Thuwal, Saudi Arabia

Figures

Figures (8)

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Figure 1 Trichocallia delicatulagen. et sp. nov., holotype, male (cl 8.3 mm) from Bocas del Toro, Panama (MZUSP 34100): (A) carapace, lateral (setae omitted); (B) frontal region, dorsal; (C) same, lateral; (D) base of antennal peduncle, lateral; (E) sternum between coxae of fourth pereiopods and base of right fifth pereiopod, ventral; (F) pleon and tail fan, ventrolateral; (G) left first pleopod, mesial; (H) left second pereiopod, mesial; (I) same, anterior (lateral); (J) same, detail of appendix interna, anterior (lateral); (K) same, two branching gill filaments, mesial; (L) telson and left uropod, dorsal.

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Figure 2 Trichocallia delicatulagen. et sp. nov., holotype, male (cl 8.3 mm) from Bocas del Toro, Panama (MZUSP 34100): (A) mandible and adjacent setose lobe, mesial; (B) same, lateral; (C) same, detail of distal margin of incisor process, lateral; (D) maxillule, lateral; (E) maxilla, lateral; (F) first maxilliped, lateral; (G) second maxilliped, lateral; (H) third maxilliped, lateral; (I) same, detail of crista dentata, mesial; (J) major (right) cheliped, lateral; (K) same, chela fingers (setae omitted); L, M, same, detail of ventral margin of carpus, lateral and mesial, respectively; (N) minor (left) cheliped, lateral; (O) same, chela fingers (position of main setal tufts indicated).

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Figure 3 Trichocallia delicatulagen. et sp. nov., holotype, male (cl 8.3 mm) from Bocas del Toro, Panama (MZUSP 34100): (A) second pereiopod, lateral; (B) same, chela (position of main setal rows indicated); (C) same, detail cutting edge of pollex, mesial; (D) third pereiopod, lateral; (E) fourth pereiopod, lateral; (F) fifth pereiopod, lateral; (G) same, basal articles, lateral; (H) same, propodus and dactylus, mesial.

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Figure 4 Trichocallia delicatulagen. et sp. nov., holotype, male (cl 8.3 mm) from Bocas del Toro, Panama (MZUSP 34100): (A) habitus alive, dorsal; (B) same, lateral; (C) frontal region and anterior appendages, dorsal; (D) posterior pleon and tail fan, dorsal. Photographs by the author.

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Figure 5 Trichocallia delicatulagen. et sp. nov., holotype, male (cl 8.3 mm) from Bocas del Toro, Panama (MZUSP 34100): (A) pleon and tail fan, ventral; (B) same, lateral; C, D, major (right) cheliped, lateral and mesial, respectively. Photographs by the author.

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Figure 6 Callianidea typaH. Milne Edwards, 1837, ovigerous female (cl 9.3 mm) [A-C] and male (cl 11.9 mm) [D] from Darsayt, Oman (MZUSP 33155, 33156); (A) habitus alive, dorsal; (B) same, lateral; (C) frontal region and anterior appendages, dorsal; D. anterior part of body covered by symbiotic copepods (possibly Clausidium persiaensisSepahvand, Rastegar-Pouyani, Kihara & Momtazi, 2017). Photographs by the author.

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Figure 8 Mictaxius thalassicolaKensley & Heard, 1991, female (cl 6.2 mm) from Saint Martin (FLMNH UF 31992): (A) habitus alive, dorsal; (B) same, lateral. Photographs by the author.

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Figure 7 Paracallianidea occidentalis (Schmitt, 1939), female (cl 8.4 mm) from Taboga Island, Panama (MNHN-IU-2019-3219): (A) habitus alive, dorsal; (B) same, lateral; (C) cephalothorax and pereiopods, lateral. Photographs by the author.

imageFigure 1 Trichocallia delicatulagen. et sp. nov., holotype, male (cl 8.3 mm) from Bocas del Toro, Panama (MZUSP 34100): (A) carapace, lateral (setae omitted); (B) frontal region, dorsal; (C) same, lateral; (D) base of antennal peduncle, lateral; (E) sternum between coxae of fourth pereiopods and base of right fifth pereiopod, ventral; (F) pleon and tail fan, ventrolateral; (G) left first pleopod, mesial; (H) left second pereiopod, mesial; (I) same, anterior (lateral); (J) same, detail of appendix interna, anterior (lateral); (K) same, two branching gill filaments, mesial; (L) telson and left uropod, dorsal. open_in_new

imageFigure 2 Trichocallia delicatulagen. et sp. nov., holotype, male (cl 8.3 mm) from Bocas del Toro, Panama (MZUSP 34100): (A) mandible and adjacent setose lobe, mesial; (B) same, lateral; (C) same, detail of distal margin of incisor process, lateral; (D) maxillule, lateral; (E) maxilla, lateral; (F) first maxilliped, lateral; (G) second maxilliped, lateral; (H) third maxilliped, lateral; (I) same, detail of crista dentata, mesial; (J) major (right) cheliped, lateral; (K) same, chela fingers (setae omitted); L, M, same, detail of ventral margin of carpus, lateral and mesial, respectively; (N) minor (left) cheliped, lateral; (O) same, chela fingers (position of main setal tufts indicated). open_in_new

imageFigure 3 Trichocallia delicatulagen. et sp. nov., holotype, male (cl 8.3 mm) from Bocas del Toro, Panama (MZUSP 34100): (A) second pereiopod, lateral; (B) same, chela (position of main setal rows indicated); (C) same, detail cutting edge of pollex, mesial; (D) third pereiopod, lateral; (E) fourth pereiopod, lateral; (F) fifth pereiopod, lateral; (G) same, basal articles, lateral; (H) same, propodus and dactylus, mesial. open_in_new

imageFigure 4 Trichocallia delicatulagen. et sp. nov., holotype, male (cl 8.3 mm) from Bocas del Toro, Panama (MZUSP 34100): (A) habitus alive, dorsal; (B) same, lateral; (C) frontal region and anterior appendages, dorsal; (D) posterior pleon and tail fan, dorsal. Photographs by the author. open_in_new

imageFigure 5 Trichocallia delicatulagen. et sp. nov., holotype, male (cl 8.3 mm) from Bocas del Toro, Panama (MZUSP 34100): (A) pleon and tail fan, ventral; (B) same, lateral; C, D, major (right) cheliped, lateral and mesial, respectively. Photographs by the author. open_in_new

imageFigure 6 Callianidea typaH. Milne Edwards, 1837, ovigerous female (cl 9.3 mm) [A-C] and male (cl 11.9 mm) [D] from Darsayt, Oman (MZUSP 33155, 33156); (A) habitus alive, dorsal; (B) same, lateral; (C) frontal region and anterior appendages, dorsal; D. anterior part of body covered by symbiotic copepods (possibly Clausidium persiaensisSepahvand, Rastegar-Pouyani, Kihara & Momtazi, 2017). Photographs by the author. open_in_new

imageFigure 8 Mictaxius thalassicolaKensley & Heard, 1991, female (cl 6.2 mm) from Saint Martin (FLMNH UF 31992): (A) habitus alive, dorsal; (B) same, lateral. Photographs by the author. open_in_new

imageFigure 7 Paracallianidea occidentalis (Schmitt, 1939), female (cl 8.4 mm) from Taboga Island, Panama (MNHN-IU-2019-3219): (A) habitus alive, dorsal; (B) same, lateral; (C) cephalothorax and pereiopods, lateral. Photographs by the author. open_in_new

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