Cymothoidae Leach, 1814

Martin, Melissa B., Bruce, Niel L. & Nowak, Barbara F., 2016, Review of the fish-parasitic genus Cymothoa Fabricius, 1793 (Crustacea: Isopoda: Cymothoidae) from Australia, Zootaxa 4119 (1), pp. 1-72 : 4-5

publication ID

https://doi.org/ 10.11646/zootaxa.4119.1.1

publication LSID

lsid:zoobank.org:pub:20921969-1AA4-429F-B908-1EF1045B5098

DOI

https://doi.org/10.5281/zenodo.6074581

persistent identifier

https://treatment.plazi.org/id/7615575A-E675-FFF1-14AB-FA55018E402F

treatment provided by

Plazi

scientific name

Cymothoidae Leach, 1814
status

 

Family Cymothoidae Leach, 1814 View in CoL

Remarks. This contribution concludes a series ( Martin et al. 2013, 2014a, b, 2015a, b) revising the buccalattaching genera of Cymothoidae from Australia. A key is provided to all the marine genera of buccal-attaching Cymothoidae , which is complemented by the keys given to the external-attaching genera ( Bruce 1987a, b, c, 1990) and the gill-attaching genera ( Bruce 1986, 1990).

Key to the marine buccal-attaching genera

This key is restricted to ovigerous female of the genera that are solely known to attach in the host’s buccal region. This group is not monophyletic as it includes Smenispa Özdikem, 2009 a View in CoL genus which shows closest affinities to external-attaching genera such as Anilocra View in CoL and Livoneca Leach, 1818 View in CoL (see Bruce 1987a, 1990 for diagnoses) and Catoessa View in CoL a genus of uncertain affinities (see Bruce 1990). The monotypic genus Tetragonocephalon Avdeev, 1975 View in CoL is morphologically similar to Smenispa View in CoL (based on the dorsal view of the cephalon, pereon and pleon shape) and as we are unable to find any characters to distinguish the two genera, Tetragonocephalon View in CoL is not included in the key.

1. Cephalon posterior margin trisinuate; pereon and pleon strongly co-linear; brood pouch with posterior pockets, oostegites of coxae 6 forming most of the marsupium................................................ Smenispa Özdikem, 2009 View in CoL

- Cephalon posterior margin rounded or straight; pereon and pleon weakly co-linear; brood pouch without posterior pockets; oostegites arising from coxae 1–6, all forming the marsupium.................................................. 2

2. Pleotelson posterior margin subtriangular; body widest at pereonite 6........................... Olencira Leach, 1818 View in CoL

- Pleotelson rounded or subtruncate; body widest at pereonite 4 or 5.............................................. 3

3. Antennula longer than antenna; pereopod 5–7 basis without well-developed carina; pleon and pleotelson axially twisted (“rotated”) against the pereon............................................... Catoessa Schioedte & Meinert, 1884 View in CoL

- Antennula shorter than antenna; pereopods 5–7 basis with well-developed carina; pleon and pleotelson are not axially twisted against pereon....................................................................................... 4

4. Antennae thick and expanded; antennula bases contiguous; cephalon not or weakly immersed in pereonite 1............ 5

- Antennae slender; antennula bases narrowly to widely separated; cephalon deeply immersed in pereonite 1............. 6

5. Pereonite 1 anterolateral margins projecting forward, without slight recess, anterior margin concave.. Ceratothoa Dana, 1852 View in CoL

- Pereonite 1 anterolateral margins projecting laterally, with slight recess, anterior margin straight or convex.................................................................................... Glossobius Schioedte & Meinert, 1883 View in CoL

6. Body weakly vaulted; anterior margin of cephalon with distinct rostrum; anterolateral margins of pereonite 1 extending beyond rostrum, with prominent lobes...................................................... Lobothorax Bleeker, 1857 View in CoL

- Body strongly vaulted; anterior margin of cephalon without distinct rostrum anterolateral margins of pereonite 1 minute or reaching anterior margin of rostrum, without prominent lobes.................................................. 7

7. Body ovate, less than 1.5 times as long as greatest width; pleopods 3–5 without fleshy folds................................................................................................... Cinusa Schioedte & Meinert, 1883 View in CoL

- Body subparallel or weakly ovate, more than 1.5 times as long as greatest width; pleopods 3–5 with fleshy folds.......................................................................................... Cymothoa Fabricius, 1793 View in CoL

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Isopoda

Family

Cymothoidae

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF