Eoniphargus, (UENO, 1955)
publication ID |
https://doi.org/ 10.1111/j.1096-3642.2007.00277.x |
DOI |
https://doi.org/10.5281/zenodo.5489144 |
persistent identifier |
https://treatment.plazi.org/id/2F5F550F-FFB4-FFB8-DAA7-673F6754023D |
treatment provided by |
Felipe |
scientific name |
Eoniphargus |
status |
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EONIPHARGUS ( UÉNO, 1955) View in CoL
Neoniphargus (Eoniphargus) Uéno, 1955: 148 .
Eoniphargus: Straškraba, 1964: 136 View in CoL , 138; Straškraba, 1967: 127; Bousfield, 1977: 301; Barnard & Barnard, 1983: 581–582.
Diagnosis: Eyes absent; dorsal margin of urosomite 3 lacking robust setae; inner plate of maxilla 2 with facial setae in oblique row; carpus of gnathopods 1 and 2 not lobate; propodus of gnathopods 1 and 2 elongate; peduncles of pleopods with few setae; epimeral plates lacking ventromarginal setae; uropod 3 parviramous (length of inner ramus up to 0.3 × length of outer ramus).
Type species: Neoniphargus (Eoniphargus) kojimai Uéno, 1955 , original designation.
Remarks: As mentioned in the remarks on Mesogammaridae , Eoniphargus is morphologically similar to Indoniphargus in having the absence of eyes, the pedunculate coxal gills and the small inner ramus of the uropod 3. However, Eoniphargus differs from Indoniphargus by the following characters ( Indoniphargus in parentheses): the dorsal margin of the urosomite 3 is bare (with robust setae); the outer plate of the maxilla 1 bears 10 or 11 robust serrate setae (8 setae); the inner plate of the maxilla 2 bears facial setae in a oblique row (lacking); the carpus of the gnathopods is not lobate (lobate); and the propodus of the gnathopods is elongate (mittenform).
KEY TO THE GENERA OF MESOGAMMARIDAE AND INDONIPHARGUS 1 Propodus of gnathopods stout, coxal gills unstalked ......................................................................................................... 2
– Propodus of gnathopods feeble, coxal gills pedunculate .................................................................................................... 3
2 Pleonites 1–3 strongly toothed posterodorsally ......................................................................................... Mesogammarus
– Pleonites 1–3 untoothed dorsally ........................................................................................................ Paramesogammarus
3 Uropod 3 magniramous...................................................................................................................................... Octopupilla
– Uropod 3 parviramous ......................................................................................................................................................... 4
4 Inner plate of maxilla 2 with facial setae in oblique row, propodus of gnathopods 1 and 2 elongate....... Eoniphargus
– Inner plate of maxilla 2 without facial setae in oblique row, propodus of gnathopods 1 and 2 mittenform .................. ........................................................................................................................................................................ Indoniphargus
Two species are included in this genus at present: Eoniphargus kojimai ( Uéno, 1955) and E. glandulatus Stock & Jo, 1990 . They inhabit subterranean waters in Japan and Korea.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Eoniphargus
Tomikawa, Ko, Kobayashi, Norio, Morino, Hiroshi & Mawatari, Shunsuke F. 2007 |
Eoniphargus: Straškraba, 1964: 136
Barnard JL & Barnard KH 1983: 581 |
Bousfield EL 1977: 301 |
Neoniphargus (Eoniphargus) Uéno, 1955: 148
Ueno M 1955: 148 |