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Alpha-Level Taxonomy of Decapod Crustaceans
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Alpha-Level Taxonomy of Decapod Crustaceans

A special issue of Arthropoda (ISSN 2813-3323).

Deadline for manuscript submissions: closed (1 October 2023) | Viewed by 6823

Special Issue Editors

Dr. Sammy De Grave

E-Mail Website
Guest Editor
Oxford University Museum of Natural History, Parks Road, Oxford OX1 3PW, UK
Interests: systematics; taxonomy; biogeography; faunistics; comparative morphology; ecology; conservation; caridean shrimps
Dr. Sancia E.T. Van der Meij

E-Mail Website
Guest Editor
1. GELIFES, University of Groningen, Groningen, The Netherlands
2. Naturalis Biodiversity Center, Leiden, The Netherlands
Interests: biodiversity; biogeography; Brachyura; evolutionary ecology; phylogeny; reef-associated taxa; systematics

Special Issue Information

Dear Colleagues,

Decapoda are one of the most recognisable invertebrate animal groups, familiar to anybody who has ever visited the seashore, lakes or rivers as a child or adult. They are of significant commercial importance, forming the basis of huge fishery and aquaculture operations, and are a keystone species in many habitats, from tropical shallow waters through to the deep sea, and from coastal saltmarshes through to rain forests. Although nearly 20,000 species are now known, it has recently been estimated that this may only represent around 50–60% of global species richness. It has been repeatedly emphasised over the last decade that many species will go extinct before they have been described, but perhaps more important is the role of the taxonomic impediment in documenting biodiversity. It has become clear that the taxonomic population is diminishing at an unprecedented rate, and even if novel taxa are collected and deposited in museums, with fewer taxonomists around, who will describe them? Equally, many journals are now reluctant to publish single species descriptions, preferring lengthier (and thus more citeable) studies, adding a further obstacle for the field of taxonomy.

This Special Issue aims to partially address this predicament by publishing a series of alpha-level taxonomic papers on Decapoda. We seek to specifically encourage budding taxonomists to participate, as well as to invite contributions related to fossil taxa, as appropriate.

Dr. Sammy De Grave
Dr. Sancia E.T. Van der Meij
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Arthropoda is an international peer-reviewed open access quarterly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1000 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Decapoda
  • taxonomy
  • new species
  • fossils
  • discovery

Published Papers (8 papers)

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Research

20 pages, 2794 KiB  
Article
Three New Species of the Freshwater Shrimp Genus Caridina from Australia
by Werner Klotz, Thomas von Rintelen and Kristina von Rintelen
Arthropoda 2024, 2(1), 99-118; https://doi.org/10.3390/arthropoda2010008 - 18 Mar 2024
Viewed by 441
Abstract
Three new species of the genus Caridina are described from the northernmost part of Australia. Caridina darwin n. sp. resembles Caridina temasek Choy and Ng, 1991 but differs in the armature of the rostrum, the development of epipods on the pereiopods and the [...] Read more.
Three new species of the genus Caridina are described from the northernmost part of Australia. Caridina darwin n. sp. resembles Caridina temasek Choy and Ng, 1991 but differs in the armature of the rostrum, the development of epipods on the pereiopods and the absence of an appendix interna on the male first pleopods. Caridina magnovis n. sp. resembles Caridina serratirostris de Man, 1892 but differs in the armature of the ventral margin of the rostrum, a shorter stylocerite, a stouter carpus of the first pereiopod, the number and size of spiniform setae on the third and fifth pereiopods, the shape of the preanal carina and the size of the embryos (referred to as “eggs” in most previous publications). Caridina wilsoni n. sp. resembles Caridina gracilirostris de Man, 1892 but differs in the size of the embryos and in some length to width ratios of the segments of the pereiopods. Detailed morphological descriptions of all three new species are given. A molecular phylogeny (mt DNA 16S) supports the morphospecies hypothesis and illustrates the phylogenetic relationship with morphologically similar species from outside Australia. Full article
(This article belongs to the Special Issue Alpha-Level Taxonomy of Decapod Crustaceans)
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5 pages, 955 KiB  
Communication
A New Record of the Rare Crab Homolodromia robertsi Garth, 1973 (Crustacea; Decapoda; Homolodromiidae), from Cocos Island, Costa Rica
by Christopher B. Boyko and Peter K. L. Ng
Arthropoda 2024, 2(1), 28-32; https://doi.org/10.3390/arthropoda2010002 - 17 Jan 2024
Viewed by 558
Abstract
In the American Museum of Natural History, New York, there is an old specimen labelled as “Holodromia harrisonwilliamsi Boone, MS name” that was collected from Cocos Island in 1925. This name has never been published. An examination of the specimen shows that [...] Read more.
In the American Museum of Natural History, New York, there is an old specimen labelled as “Holodromia harrisonwilliamsi Boone, MS name” that was collected from Cocos Island in 1925. This name has never been published. An examination of the specimen shows that it is a juvenile specimen of Homolodromia robertsi Garth, 1973, a species described from Peru, which has since been reported from Chile and off the coast of Ecuador. This paper reports on the specimen Homolodromia robertsi Garth found in Costa Rica for the first time, a discovery that extends the known range of this species northwards. Full article
(This article belongs to the Special Issue Alpha-Level Taxonomy of Decapod Crustaceans)
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15 pages, 6113 KiB  
Article
A New Species of the Shrimp Genus Salmoneus Holthuis, 1955 (Malacostraca: Decapoda: Alpheidae) from the Exposed Shores of Eastern and Southern Oman
by Arthur Anker
Arthropoda 2023, 1(4), 473-487; https://doi.org/10.3390/arthropoda1040022 - 15 Dec 2023
Viewed by 461
Abstract
Salmoneus sultanus sp. nov. is described based on several specimens collected on the exposed shores of Masirah Island and Dhofar, Oman, a region characterised by seasonal upwellings cooling water temperature to less than 23 °C. The new species is compared with the morphologically [...] Read more.
Salmoneus sultanus sp. nov. is described based on several specimens collected on the exposed shores of Masirah Island and Dhofar, Oman, a region characterised by seasonal upwellings cooling water temperature to less than 23 °C. The new species is compared with the morphologically most similar congeners present in the north-western Indian Ocean, e.g., S. latirostris (Coutière, 1897), S. cristatus (Coutière, 1897), S. serratidigitus (Coutière, 1897), and S. chadwickae Ďuriš and Horká, 2016; the latter species is recorded for the first time from Oman. The conspicuous colour pattern of S. sultanus sp. nov. appears to be diagnostic, differing greatly from that of S. latirostris, S. cristatus, S. serratidigitus, and S. chadwickae. Full article
(This article belongs to the Special Issue Alpha-Level Taxonomy of Decapod Crustaceans)
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12 pages, 4572 KiB  
Communication
A New Octocorallia-Associated Shrimp of the Genus Periclimenes (Crustacea, Caridea, Palaemonidae) from West Africa
by Charles H. J. M. Fransen and Peter Wirtz
Arthropoda 2023, 1(4), 420-431; https://doi.org/10.3390/arthropoda1040018 - 14 Nov 2023
Viewed by 655
Abstract
A new shrimp species of the genus Periclimenes is described based on specimens collected in the Bissagos Islands, Guinea-Bissau. Specimens were collected from an unidentified octocoral. This is the ninth species in the genus known to be from the East Atlantic and Mediterranean. [...] Read more.
A new shrimp species of the genus Periclimenes is described based on specimens collected in the Bissagos Islands, Guinea-Bissau. Specimens were collected from an unidentified octocoral. This is the ninth species in the genus known to be from the East Atlantic and Mediterranean. Full article
(This article belongs to the Special Issue Alpha-Level Taxonomy of Decapod Crustaceans)
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17 pages, 1139 KiB  
Article
On a Remarkable New Genus and Species of Alpheid Shrimps (Malacostraca: Decapoda: Caridea) from the Tropical Western Atlantic
by Arthur Anker
Arthropoda 2023, 1(4), 398-414; https://doi.org/10.3390/arthropoda1040016 - 18 Oct 2023
Viewed by 896
Abstract
Synalpheopsis gen. nov. is established for a remarkable new alpheid species, Synalpheopsis laureae sp. nov., presently known only from the male holotype collected at 111–162 m east of La Désirade, Guadeloupe, Lesser Antilles. Synalpheopsis gen. nov. peculiarly combines features of two genera, Alpheopsis [...] Read more.
Synalpheopsis gen. nov. is established for a remarkable new alpheid species, Synalpheopsis laureae sp. nov., presently known only from the male holotype collected at 111–162 m east of La Désirade, Guadeloupe, Lesser Antilles. Synalpheopsis gen. nov. peculiarly combines features of two genera, Alpheopsis Coutière, 1897 and Synalpheus Spence Bate, 1888; however, it is presumably closer to the former genus. The new genus is characterised by the moderately developed orbital hoods, well-developed rostrum and orbital teeth, sixth pleonite without articulated flap, tip of the third maxilliped with crown of spiniform setae, chelipeds with two strong teeth on distolateral margin and lacking snapping mechanism on finger cutting edges, and gill formula without mastigobranchs and setobranchs. Full article
(This article belongs to the Special Issue Alpha-Level Taxonomy of Decapod Crustaceans)
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24 pages, 2323 KiB  
Article
Updated Checklist of the Freshwater Shrimps (Decapoda: Caridea: Atyidae) of Mindoro Island, the Philippines, with a Description of a New Species of Caridina
by Valentin de Mazancourt, Hendrik Freitag, Kristina von Rintelen, Marivene Manuel-Santos and Thomas von Rintelen
Arthropoda 2023, 1(4), 374-397; https://doi.org/10.3390/arthropoda1040015 - 12 Oct 2023
Viewed by 1278
Abstract
Following recent expeditions to Mindoro Island, the Philippines, numerous samples of atyid shrimps were collected and then studied in an integrative taxonomy framework. A total of 16 species belonging to 4 genera are hereby reported, including 8 new records for the island and/or [...] Read more.
Following recent expeditions to Mindoro Island, the Philippines, numerous samples of atyid shrimps were collected and then studied in an integrative taxonomy framework. A total of 16 species belonging to 4 genera are hereby reported, including 8 new records for the island and/or the Philippines: Atydina atyoides, Caridina bruneiana, C. celebensis, C. elongapoda, C. papuana, C. parvirostris, C. typus, C. zhujiangensis, and one new species, Caridina leptopoda sp. nov. Sequences of 16S rRNA have been produced for all of the species and taxonomical notes are provided. To account for the morphological variability across its range, C. bruneiana Choy, 1992 is herein re-described based on specimens from Mindoro. All of the species reported here from Mindoro have small eggs and are considered amphidromous, which suggests that they all potentially occur in other localities. This contrasts with other islands of the Philippines such as Bohol or Luzon where endemic species with large eggs can be found. Full article
(This article belongs to the Special Issue Alpha-Level Taxonomy of Decapod Crustaceans)
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9 pages, 2090 KiB  
Communication
Salmoneus chelocrassus sp. nov., a New Morphologically Distinctive Species of the Genus Salmoneus Holthuis, 1955 (Decapoda: Caridea: Alpheidae) from Taiwan
by Hossein Ashrafi, Chia-Wei Lin and Zdeněk Ďuriš
Arthropoda 2023, 1(4), 365-373; https://doi.org/10.3390/arthropoda1040014 - 30 Sep 2023
Cited by 1 | Viewed by 654
Abstract
During a faunal investigation using SCUBA in Taiwan in 2014, a single ovigerous specimen of an alpheid shrimp belonging to the genus Salmoneus Holthuis, 1955, was collected. Notably, the specimen stood out due to its extremely robust major cheliped compared to other species [...] Read more.
During a faunal investigation using SCUBA in Taiwan in 2014, a single ovigerous specimen of an alpheid shrimp belonging to the genus Salmoneus Holthuis, 1955, was collected. Notably, the specimen stood out due to its extremely robust major cheliped compared to other species within the genus. Detailed examination of the specimen unveiled its morphological distinctiveness from all known Salmoneus species, confirming its novelty to science. Apart from the remarkably inflated major cheliped devoid of depressions along the ventral margin, the characteristics of S. chelocrassus sp. nov., include the markedly reduced arthrobranch on the third maxilliped and the absence of microserrulate setae on the propodus of the fifth pereiopod. Full article
(This article belongs to the Special Issue Alpha-Level Taxonomy of Decapod Crustaceans)
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9 pages, 2247 KiB  
Article
Lithoscaptus aquarius sp. nov. (Decapoda: Cryptochiridae) Described from a Catalaphyllia jardinei (Scleractinia) out of the Aquarium Trade
by Sancia E. T. van der Meij
Arthropoda 2023, 1(3), 350-358; https://doi.org/10.3390/arthropoda1030012 - 31 Jul 2023
Cited by 1 | Viewed by 1326
Abstract
A new species of gall crab collected from elegance coral, Catalaphyllia jardinei, is described in this paper. The male holotype was collected from a reef tank in Germany in 2016, and it is described here using integrative taxonomy. This species, named Lithoscaptus aquarius [...] Read more.
A new species of gall crab collected from elegance coral, Catalaphyllia jardinei, is described in this paper. The male holotype was collected from a reef tank in Germany in 2016, and it is described here using integrative taxonomy. This species, named Lithoscaptus aquarius sp. nov., is the thirteenth assigned to the genus. It is morphologically and phylogenetically closest to Lithoscaptus semperi, a cryptochirid associated with Trachyphyllia geoffroyi. Like L. semperi, it has a large, broad W-shaped depression on the anterior half of the carapace, but the carapace surface of L. aquarius sp. nov. is smooth overall, lacking spines or tubercles. This new species is so named because it was found in a reef tank after searching in vain for material during fieldwork campaigns over the course of several years. Full article
(This article belongs to the Special Issue Alpha-Level Taxonomy of Decapod Crustaceans)
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