Christopher B. Boyko
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A new species of Parapleurocryptella Bourdon, 1972 (Isopoda: Bopyridae) from deep water squat lobster hosts of New Zealand with description of larval stages and transfer of the genus to Pleurocryptellinae Open
Squat lobsters (Decapoda: Anomura) harbor a high diversity of symbionts, including many parasitic isopod species (Epicaridea: Bopyridae) that reside in their branchial chambers. We describe the bopyrid Parapleurocryptella poha n. sp., foun…
View article: Ocean Species Discoveries 13–27 — Taxonomic contributions to the diversity of Polychaeta, Mollusca and Crustacea
Ocean Species Discoveries 13–27 — Taxonomic contributions to the diversity of Polychaeta, Mollusca and Crustacea Open
Despite centuries of exploration, marine invertebrate biodiversity remains notably under-described. The majority of species in major marine groups are still unnamed, limiting our ability to understand and conserve ecosystems facing rapid e…
Taxonomic revision of four terrestrial isopods (Crustacea: Oniscidea) from Mexico Open
As part of a research project on the taxonomy of the woodlice (Oniscidea) of northern Mexico, isopod collections of Mexican academic institutions were examined. For the first time, the main diagnostic morphological traits of 4 native speci…
View article: First report of the ectosymbiont Temnocephala sp. (Platyhelminthes: Rhabdocoela) on two Macrobrachium species (Decapoda: Caridea) from the Brazilian Amazon
First report of the ectosymbiont Temnocephala sp. (Platyhelminthes: Rhabdocoela) on two Macrobrachium species (Decapoda: Caridea) from the Brazilian Amazon Open
In aquatic environments, the presence of biological relationships occurring in different levels of the trophic chain is widely observed and reported in the literature, especially for invertebrates using other organisms as temporary or defi…
The epicaridium larvae of Paragigantione species (Isopoda: Epicaridea: Bopyridae) have external yolk sacs: transfer of the genus to Pleurocryptellinae, description of two new species in the genus and a new species of hyperparasite (Isopoda: Epicaridea: Cabiropidae) Open
The epicaridean isopods previously known to have epicaridium larvae with posterior yolk sacs were species of Pleurocryptella Bonnier, 1900 and a new subfamily, Pleurocryptellinae, was recently erected for this genus. Epicaridium larvae bea…
View article: The World Register of Marine Species (WoRMS) through the looking glass: insights from the data management team in light of the crystal anniversary of WoRMS
The World Register of Marine Species (WoRMS) through the looking glass: insights from the data management team in light of the crystal anniversary of WoRMS Open
The World Register of Marine Species (WoRMS) started in 2007 with the question “how many species live in our oceans?”. Now, a little over 15 years later, WoRMS is able to answer several questions related to marine species discovery rates a…
Taxonomic notes and nomenclatural corrections in Crustacea: Isopoda (exclusive of Oniscidea) Open
During a review of all isopod taxa (exclusive of Oniscidea), nomenclatural and taxonomic issues were found that need correction or detailed explanation. Herein, details are provided on five unreplaced species/subspecies homonyms, correctio…
The carcinological<i>oeuvre</i>of Charles Spence Bate (1819–1889): Checklist of species and genera, dates of publication, and a list of publications (Crustacea: Amphipoda, Cirripedia, Cumacea, Decapoda, Tanaidacea) Open
Charles Spence Bate (1818–1889) was one of the more influential mid to late 19th century crustacean taxonomists, with broad interests spanning several taxonomic groups, such as Amphipoda and Decapoda. Despite several contemporary obituarie…
New records of bopyrid parasites (Crustacea, Isopoda, Epicaridea) of pea crabs (Crustacea, Decapoda, Pinnotheridae) with descriptions of two new species of Rhopalione Pérez, 1921 and a review of the genus Open
Boyko, Christopher B., Williams, Jason D. (2024): New records of bopyrid parasites (Crustacea, Isopoda, Epicaridea) of pea crabs (Crustacea, Decapoda, Pinnotheridae) with descriptions of two new species of Rhopalione Pérez, 1921 and a revi…
A New Record of the Rare Crab Homolodromia robertsi Garth, 1973 (Crustacea; Decapoda; Homolodromiidae), from Cocos Island, Costa Rica Open
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…
Taxonomic Notes and Nomenclatural Corrections on Four Sphaeromatid Isopod Generic Names (Crustacea: Isopoda: Sphaeromatidae) Open
Details regarding the synonymy of Nesaea Leach, 1814 and Dynamene Leach, 1814 are given and a type species is selected for Dynamene. The genus Heteruropus Verhoeff, 1942 is shown to be the senior objective synonym of Harrieta Kensley, 1987…
Gossea Spence Bate & Westwood, 1862 (Amphipoda) and Gossea Agassiz, 1862 (Cnidaria, Hydrozoa): reversal of presumed precedence and review of the complicated nomenclatural history Open
Gossea Agassiz, 1862 (Cnidaria: Hydrozoa) and Gossea Spence Bate & Westwood, 1862 (Crustacea: Amphipoda) are homonyms and Agassiz’s genus has long been considered the senior name. Discovery of copyright information for Agassiz’s book shows…
View article: Benchmarking global biodiversity of decapod crustaceans (Crustacea: Decapoda)
Benchmarking global biodiversity of decapod crustaceans (Crustacea: Decapoda) Open
A new assessment of the global biodiversity of decapod Crustacea (to 31 December 2022) records 17,229 species in 2,550 genera and 203 families. These figures are derived from a well-curated dataset maintained on the online platform DecaNet…
A new species of parasitic isopod (Bopyroidea: Ionidae) infesting burrowing shrimp (Axiidea: Callianassidae) in the tropical eastern Pacific Open
A new species of parasitic isopod in the genus Ione Latreille, 1818, infesting the branchial chamber of the intertidal burrowing shrimp Neotrypaea tabogensis (Sakai, 2005) is described on the basis of material collected on the Pacific coas…
Nomenclatural and taxonomic changes in parasitic isopods (Isopoda: Epicaridea), including two new families and note on the questionable association between monogeneans and bopyrids Open
Several long-standing taxonomic and nomenclatural problems in bopyroid and cryptoniscoid isopods are addressed. Within Bopyroidea we propose five new synonomies, three new combinations, a correction of the spelling of one species and a rep…
A review of the endoparasitic isopods (Epicaridea: Entoniscidae) from hermit crabs, including description of the new subfamily Diogenioninae and a new species of Paguritherium Reinhard, 1945 from the Philippines Open
Entoniscid isopods (Entoniscidae) are obligate endoparasites of other crustacean species. They have an indirect lifestyle, usually with two hosts and multiple larval stages; as adults they are found living within decapod hosts. Hermit crab…
A new species of parasitic isopod (Bopyroidea: Ionidae) infesting burrowing shrimp (Axiidea: Callianassidae) in the tropical eastern Pacific Open
This dataset contains the digitized treatments in Plazi based on the original journal article Hernáez, Patricio, Villegas-Castro, Erick, Boyko, Christopher B. (2023): A new species of parasitic isopod (Bopyroidea: Ionidae) infesting burrow…
Nomenclatural and taxonomic changes in parasitic isopods (Isopoda: Epicaridea) including two new families and note on the questionable association between monogeneans and bopyrids Open
This dataset contains the digitized treatments in Plazi based on the original journal article Boyko, Christopher B., Williams, Jason D. (2023): Nomenclatural and taxonomic changes in parasitic isopods (Isopoda: Epicaridea) including two ne…
Reappraisal of the status of two recently described western Atlantic species of sand crabs (Anomura: Albuneidae) Open
Evidence is provided to support the synonymy of two species of sand crabs (Anomura: Albuneidae). Zygopa lalanai Ortiz, 2015 is a synonym of Zygopa michaelis Holthuis, 1961 and Lepidopa boykoi Ortiz, Tello-Musi and Morales-Moreno, 2018 is a…
Two New Species of Spheroid Ectoparasitic Isopods (Epicaridea: Dajidae) Attached to the Antennules of Brachyuran Crab Hosts, with Description of a New Genus and Species of Hyperparasite (Epicaridea: Cryptoniscoidea) Open
In this paper, we describe two new species of dajid isopods found enveloping the antennules of decapod hosts: Akrophryxus acinaces sp. nov. parasitizing Pycnoplax surugensis (Rathbun, 1932) (off Pacific coast of central Japan, approximatel…
Rediscovery and redescription of Entoniscus creplinii Giard and Bonnier, 1887 (Isopoda: Bopyroidea: Entoniscidae) parasitizing Polyonyx gibbesi Haig, 1956 (Decapoda: Anomura: Porcellanidae), a symbiotic crab from the tubes of Chaetopterus cf. variopedatus (Annelida), from North Carolina and Florida, U. S. A. Open
McDermott, John J., Williams, Jason D., Boyko, Christopher B. (2022): Rediscovery and redescription of Entoniscus creplinii Giard and Bonnier, 1887 (Isopoda: Bopyroidea: Entoniscidae) parasitizing Polyonyx gibbesi Haig, 1956 (Decapoda: Ano…
Rediscovery and redescription of Entoniscus creplinii Giard and Bonnier, 1887 (Isopoda: Bopyroidea: Entoniscidae) parasitizing Polyonyx gibbesi Haig, 1956 (Decapoda: Anomura: Porcellanidae), a symbiotic crab from the tubes of Chaetopterus cf. variopedatus (Annelida), from North Carolina and Florida, U. S. A. Open
The porcellanid crab Polyonyx gibbesi Haig, 1956, an obligate symbiont of Chaetopterus cf. variopedatus (Renier, 1804) in the western Atlantic, is parasitized by a rare entoniscid isopod. Crabs from coastal North Carolina and Florida, U.S.…
Out on a limb: novel morphology and position on appendages of two new genera and three new species of ectoparasitic isopods (Epicaridea: Dajidae) infesting isopod and decapod hosts Open
Williams, Jason D., Boyko, Christopher B. (2021): Out on a limb: novel morphology and position on appendages of two new genera and three new species of ectoparasitic isopods (Epicaridea: Dajidae) infesting isopod and decapod hosts. Zoosyst…
First record of a tantulocaridan, Microdajus sp. (Crustacea: Tantulocarida), from the northwestern Atlantic Open
A putative new species of tantulocaridan is reported parasitizing a species of typhlotanaid (Tanaideacea) from the Gulf of Mexico at depths up to 2767 m. The tantulocaridan belongs to Microdajus Greve, 1965, species of which are all known …
Out on a limb: novel morphology and position on appendages of two new genera and three new species of ectoparasitic isopods (Epicaridea: Dajidae) infesting isopod and decapod hosts Open
This dataset contains the digitized treatments in Plazi based on the original journal article Williams, Jason D., Boyko, Christopher B. (2021): Out on a limb: novel morphology and position on appendages of two new genera and three new spec…
A Review of the Parasitic Isopod Genus <i>Epicepon</i> Nierstrasz & Brender à Brandis, 1931 (Crustacea: Isopoda: Epicaridea), Parasites of Cyclodorippoid Crabs (Crustacea: Decapoda: Brachyura), with Description of a New Species from New Caledonia. Open
A new species of the parasitic isopod genus Epicepon Nierstrasz & Brender à Brandis, 1931 (Isopoda: Bopyridae) found parasitizing the cyclodorippoid crab host Tymolus hirtipes Tan & Huang, 2000 is described from New Caledonia. Females of E…
A new species and depth record of bopyrid (Crustacea, Isopoda) from a squat lobster in the Kuril-Kamchatka Trench Open
The branchial parasitic isopod Pleurocryptella altalis sp. nov. (Bopyridae: Pseudioninae) is described from the squat lobster host Munidopsis petalorhyncha Baba, 2005. The new species is morphologically similar to Pleurocryptella formosa B…