Hymenocephalus is a genus of rattails.
Species
There are currently 27 recognized species in this genus:
- Hymenocephalus aeger <small>C. H. Gilbert & C. L. Hubbs, 1920</small> (Plain-tail whiptail)
- Hymenocephalus antraeus <small>C. H. Gilbert & Cramer, 1897</small>
- Hymenocephalus aterrimus <small>C. H. Gilbert, 1905</small> (Blackest whiptail)
- Hymenocephalus barbatulus <small>C. H. Gilbert & C. L. Hubbs, 1920</small>
- Hymenocephalus billsam <small>N. B. Marshall & Iwamoto, 1973</small>
- Hymenocephalus fuscus <small>P. J. McMillan & Iwamoto, 2014</small> (Black membranehead)
- Hymenocephalus grimaldii <small>M. C. W. Weber, 1913</small>
- Hymenocephalus hachijoensis <small>Okamura, 1970</small>
- Hymenocephalus heterolepis <small>(Alcock, 1889)</small>
- Hymenocephalus italicus <small>Giglioli, 1884</small> (Glass-head grenadier)
- Hymenocephalus iwamotoi <small>Schwarzhans, 2014</small> (Iwamoto's whiptail)
- Hymenocephalus lethonemus <small>D. S. Jordan & C. H. Gilbert, 1904</small>
- Hymenocephalus longibarbis <small>(Günther, 1887)</small> (Long-barb whiptail)
- Hymenocephalus longipes <small>H. M. Smith & Radcliffe, 1912</small>
- Hymenocephalus maculicaudus <small>P. J. McMillan & Iwamoto, 2014</small> (Spotty-tail membranehead)
- Hymenocephalus megalops <small>Iwamoto & Merrett, 1997</small> (Big-eye whiptail)
- Hymenocephalus nascens <small>C. H. Gilbert & C. L. Hubbs, 1920</small> (Nascent membranehead)
- Hymenocephalus neglectissimus <small>Sazonov & Iwamoto, 1992</small>
- Hymenocephalus nesaeae <small>Merrett & Iwamoto, 2000</small>
- Hymenocephalus papyraceus <small>D. S. Jordan & C. H. Gilbert, 1904</small>
- Hymenocephalus punt <small>Schwarzhans, 2014</small>
- Hymenocephalus sazonovi <small>Schwarzhans, 2014</small>
- Hymenocephalus semipellucidus <small>Sazonov & Iwamoto, 1992</small>
- Hymenocephalus striatissimus <small>D. S. Jordan & C. H. Gilbert, 1904</small>
- Hymenocephalus striatulus <small>C. H. Gilbert, 1905</small>
- Hymenocephalus torvus <small>H. M. Smith & Radcliffe, 1912</small>
- Hymenocephalus yamasakiorum <small>Nakayama, Endo & Schwarzhans, 2015</small> (Black-tailed membranehead)
References