Bopyridae Rafinesque 1815
Creators: name: Romero-Rodriguez, Jesús
name: Álvarez, Fernando
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Isopoda
Bopyridae

description: Key to genera and species of bopyrids of hermit crabs from the Atlantic coast of Mexico
Based on females, modified from Boyko & Williams 2003 and Williams et al. 2019. Species nonexamined here indicated by *.
1. Attached to the abdomen of the host (Athelginae) ............................................................................ 2
– Attached to the branchial chamber of the host (Pseudioninae) ......................................................... 5
2. Pleomeres with lateral plates ............................................................................................................. 3
– Pleomeres without lateral plates .......................................................................................................... ............................................ Parathelges (P. occidentalis * Markham, 1972 only species in the area)
3. Lateral plates on pleomeres 1–5 ........................................................................................................ 4
– Lateral plates on pleomeres 1–3 only .................................................................................................. ...................................................... Stegias (S. clibanarii Richardson, 1904 only species in the area)
4. Lateral plates on pleomere 5 reduced, globular o scar-like ................................................................. .................................... Pseudostegias (P. atlantica Lemos de Castro, 1965 only species in the area)
– Lateral plates on pleomere 5 normal ................................................................................................... .................................................. Anathelges (A. hyptius (Thompson, 1902) only species in the area)
5. Females usually greatly distorted (~ 90° or more), if not distorted with propodal sockets on pereo- pods............................................................................................................................ Asymmetrione 6
– Females scantily distorted (~ 70°) or nearly symmetrical, lacking propodal sockets on pereopods... ........................................................... Bopyrissa (B. wolffi Markham, 1978 only species in the area)
6. Greater than 50º body asymmetry ..................................................................................................... 7
– Less than 50º body asymmetry ............................................ Asymmetrione desultor Markham, 1975
7. First pair of pereopods at both sides of head of similar size, pleopods 1–5 biramous ........................ ........................................................................................ Asymmetrione clibanarii * Markham, 1975
– First pair of pereopods at both sides of head clearly differs in size, pleopods 1–4 biramous and 5 uniramous ..................................................................................... Asymmetrione tuxtlaensis sp. nov.
description: Published as part of Romero-Rodriguez, Jesús & Álvarez, Fernando, 2023, Parasitic bopyrid isopods of hermit crabs (Anomura, Paguridae) from the Atlantic coast of Mexico, with notes on their reproduction and distribution, pp. 132-167 in European Journal of Taxonomy 861 on page 156, DOI: 10.5852/ejt.2023.861.2073, http://zenodo.org/record/7753757