n = 43
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Malacoctenus africanus | Cadenat, 1951 | Malacoctenus africanus | Labrisomidae | |
| Malacoctenus afuerae | (Hildebrand, 1946) | Malacoctenus tetranemus | Labrisomidae | Throatspotted blenny |
| Malacoctenus afuerae multipunctatus | Springer, 1959 | Malacoctenus tetranemus | Labrisomidae | Throatspotted blenny |
| Malacoctenus aurolineatus | Smith, 1957 | Malacoctenus aurolineatus | Labrisomidae | Goldline blenny |
| Malacoctenus biguttatus | (Cope, 1871) | Malacoctenus gilli | Labrisomidae | Dusky blenny |
| Malacoctenus boehlkei | Springer, 1959 | Malacoctenus boehlkei | Labrisomidae | Diamond blenny |
| Malacoctenus bohlkei | Springer, 1959 | Malacoctenus boehlkei | Labrisomidae | Diamond blenny |
| Malacoctenus brunoi | Guimarães, Nunan & Gasparini, 2010 | Malacoctenus brunoi | Labrisomidae | Trindade scaled-blenny |
| Malacoctenus carrowi | Wirtz, 2014 | Malacoctenus carrowi | Labrisomidae | |
| Malacoctenus costaricanus | Springer, 1959 | Malacoctenus costaricanus | Labrisomidae | |
| Malacoctenus culebrae | Evermann & Marsh, 1899 | Starksia culebrae | Labrisomidae | |
| Malacoctenus delalandei | (Valenciennes, 1836) | Malacoctenus delalandii | Labrisomidae | Brazilian blenny |
| Malacoctenus delalandi | (Valenciennes, 1836) | Malacoctenus delalandii | Labrisomidae | Brazilian blenny |
| Malacoctenus delalandii | (Valenciennes, 1836) | Malacoctenus delalandii | Labrisomidae | Brazilian blenny |
| Malacoctenus ebisui | Springer, 1959 | Malacoctenus ebisui | Labrisomidae | Fishgod blenny |
| Malacoctenus erdmani | Smith, 1957 | Malacoctenus erdmani | Labrisomidae | |
| Malacoctenus gigas | Springer, 1959 | Malacoctenus gigas | Labrisomidae | Sonora blenny |
| Malacoctenus gilli | (Steindachner, 1867) | Malacoctenus gilli | Labrisomidae | Dusky blenny |
| Malacoctenus hubbsi | Springer, 1959 | Malacoctenus hubbsi | Labrisomidae | Redside blenny |
| Malacoctenus hubbsi hubbsi | Springer, 1959 | Malacoctenus hubbsi | Labrisomidae | Redside blenny |
| Malacoctenus hubbsi polyporosus | Springer, 1959 | Malacoctenus polyporosus | Labrisomidae | |
| Malacoctenus lianae | Carvalho-Filho, Almeida, Britto, Dias & Lima, 2020 | Malacoctenus lianae | Labrisomidae | Noronha scaly blenny |
| Malacoctenus macropus | (Poey, 1868) | Malacoctenus macropus | Labrisomidae | Rosy blenny |
| Malacoctenus margaritae | (Fowler, 1944) | Malacoctenus margaritae | Labrisomidae | Margarita blenny |
| Malacoctenus margaritae mexicanus | Springer, 1959 | Malacoctenus mexicanus | Labrisomidae | |
| Malacoctenus mexicanus | Springer, 1959 | Malacoctenus mexicanus | Labrisomidae | |
| Malacoctenus n. sp. | Not applicable | Malacoctenus carrowi | Labrisomidae | |
| Malacoctenus oceanicus | Not applicable | Malacoctenus brunoi | Labrisomidae | Trindade scaled-blenny |
| Malacoctenus polyporosus | Springer, 1959 | Malacoctenus polyporosus | Labrisomidae | |
| Malacoctenus sp. | Not applicable | Malacoctenus brunoi | Labrisomidae | Trindade scaled-blenny |
| Malacoctenus sp. | Not applicable | Malacoctenus lianae | Labrisomidae | Noronha scaly blenny |
| Malacoctenus sp. 1 | Not applicable | Malacoctenus zaluari | Labrisomidae | Rusty scaly blenny |
| Malacoctenus sp. 2 | Not applicable | Malacoctenus lianae | Labrisomidae | Noronha scaly blenny |
| Malacoctenus sp. n | Not applicable | Malacoctenus lianae | Labrisomidae | Noronha scaly blenny |
| Malacoctenus sudensis | Springer, 1959 | Malacoctenus sudensis | Labrisomidae | |
| Malacoctenus tetranemus | (Cope, 1877) | Malacoctenus tetranemus | Labrisomidae | Throatspotted blenny |
| Malacoctenus triangulatus | Springer, 1959 | Malacoctenus triangulatus | Labrisomidae | Saddled blenny |
| Malacoctenus versicolor | (Poey, 1876) | Malacoctenus versicolor | Labrisomidae | Barfin blenny |
| Malacoctenus zacae | Springer, 1959 | Malacoctenus zacae | Labrisomidae | Zaca blenny |
| Malacoctenus zaluari | Carvalho-Filho, Gasparini & Sazima, 2020 | Malacoctenus zaluari | Labrisomidae | Rusty scaly blenny |
| Malacoctenus zonifer | (Jordan & Gilbert, 1882) | Malacoctenus zonifer | Labrisomidae | Glossy blenny |
| Malacoctenus zonifer sudensis | Springer, 1959 | Malacoctenus sudensis | Labrisomidae | |
| Malacoctenus zonogaster | Heller & Snodgrass, 1903 | Malacoctenus zonogaster | Labrisomidae | Belted blenny |