n = 43
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Hymenocephalus adelscotti | Iwamoto & Merrett, 1997 | Spicomacrurus adelscotti | Macrouridae | Celebration whiptail |
| Hymenocephalus aeger | Gilbert & Hubbs, 1920 | Hymenocephalus aeger | Macrouridae | Plaintail whiptail |
| Hymenocephalus antraeus | Gilbert & Cramer, 1897 | Hymenocephalus antraeus | Macrouridae | |
| Hymenocephalus aterrimus | Gilbert, 1905 | Hymenocephalus aterrimus | Macrouridae | Blackest whiptail |
| Hymenocephalus barbatulus | Gilbert & Hubbs, 1920 | Hymenocephalus barbatulus | Macrouridae | |
| Hymenocephalus billsam | Marshall & Iwamoto, 1973 | Hymenocephalus billsam | Macrouridae | |
| Hymenocephalus billsamorum | Iwamoto, 1990 | Hymenocephalus billsam | Macrouridae | |
| Hymenocephalus cavernosus | (Goode & Bean, 1885) | Hymenocephalus italicus | Macrouridae | Glasshead grenadier |
| Hymenocephalus dispar | Vaillant, 1888 | Gadomus dispar | Bathygadidae | |
| Hymenocephalus fuscus | McMillan & Iwamoto, 2014 | Hymenocephalus fuscus | Macrouridae | Black membranehead |
| Hymenocephalus gracilis | Gilbert & Hubbs, 1920 | Hymenogadus gracilis | Macrouridae | Slender membranehead |
| Hymenocephalus grimaldii | Weber, 1913 | Hymenocephalus grimaldii | Macrouridae | |
| Hymenocephalus hachijoensis | Okamura, 1970 | Hymenocephalus hachijoensis | Macrouridae | |
| Hymenocephalus heterolepis | (Alcock, 1889) | Hymenocephalus heterolepis | Macrouridae | |
| Hymenocephalus italicus | Giglioli, 1884 | Hymenocephalus italicus | Macrouridae | Glasshead grenadier |
| Hymenocephalus iwamotoi | Schwarzhans, 2014 | Hymenocephalus iwamotoi | Macrouridae | |
| Hymenocephalus kuronumai | Kamohara, 1938 | Spicomacrurus kuronumai | Macrouridae | Kuronuma's whiptail |
| Hymenocephalus lethonemus | Jordan & Gilbert, 1904 | Hymenocephalus lethonemus | Macrouridae | |
| Hymenocephalus lethonenmus | Jordan & Gilbert, 1904 | Hymenocephalus lethonemus | Macrouridae | |
| Hymenocephalus longibarbis | (Günther, 1887) | Hymenocephalus longibarbis | Macrouridae | Longbarb whiptail |
| Hymenocephalus longiceps | Smith & Radcliffe, 1912 | Hymenocephalus longiceps | Macrouridae | |
| Hymenocephalus longifilis | (Goode & Bean, 1885) | Gadomus longifilis | Bathygadidae | Treadfin grenadier |
| Hymenocephalus longipes | Smith & Radcliffe, 1912 | Hymenocephalus longipes | Macrouridae | |
| Hymenocephalus maculicaudus | McMillan & Iwamoto, 2014 | Hymenocephalus maculicaudus | Macrouridae | Spottytail membranehead |
| Hymenocephalus megalops | Iwamoto & Merrett, 1997 | Hymenocephalus megalops | Macrouridae | Bigeye whiptail |
| Hymenocephalus nascens | Gilbert & Hubbs, 1920 | Hymenocephalus nascens | Macrouridae | Nascent membranehead |
| Hymenocephalus neglectissimus | Sazonov & Iwamoto, 1992 | Hymenocephalus neglectissimus | Macrouridae | |
| Hymenocephalus nesaeae | Merrett & Iwamoto, 2000 | Hymenocephalus nesaeae | Macrouridae | |
| Hymenocephalus papiraceus | Jordan & Gilbert, 1904 | Hymenocephalus papyraceus | Macrouridae | |
| Hymenocephalus papyraceus | Jordan & Gilbert, 1904 | Hymenocephalus papyraceus | Macrouridae | |
| Hymenocephalus punt | Schwarzhans, 2014 | Hymenocephalus punt | Macrouridae | |
| Hymenocephalus sazonovi | Schwarzhans, 2014 | Hymenocephalus sazonovi | Macrouridae | |
| Hymenocephalus semipellucidus | Sazonov & Iwamoto, 1992 | Hymenocephalus semipellucidus | Macrouridae | |
| Hymenocephalus sp. | Not applicable | Hymenocephalus fuscus | Macrouridae | Black membranehead |
| Hymenocephalus striatissimus | Jordan & Gilbert, 1904 | Hymenocephalus striatissimus | Macrouridae | |
| Hymenocephalus striatissimus aeger | Gilbert & Hubbs, 1920 | Hymenocephalus aeger | Macrouridae | Plaintail whiptail |
| Hymenocephalus striatissimus hachijoensis | Okamura, 1970 | Hymenocephalus hachijoensis | Macrouridae | |
| Hymenocephalus striatissimus striatissimus | Jordan & Gilbert, 1904 | Hymenocephalus striatissimus | Macrouridae | |
| Hymenocephalus striatissimus torvus | Smith & Radcliffe, 1912 | Hymenocephalus torvus | Macrouridae | |
| Hymenocephalus striatulus | Gilbert, 1905 | Hymenocephalus striatulus | Macrouridae | |
| Hymenocephalus tenuis | Gilbert & Hubbs, 1917 | Hymenogadus tenuis | Macrouridae | Slender grenadier fish |
| Hymenocephalus torvus | Smith & Radcliffe, 1912 | Hymenocephalus torvus | Macrouridae | |
| Hymenocephalus yamasakiorum | Nakayama, Endo & Schwarzhans, 2015 | Hymenocephalus yamasakiorum | Macrouridae | Black-tailed membranehead |