n = 24
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Pycnochromis abruptus | (Randall, 2001) | Pycnochromis abruptus | Pomacentridae | |
| Pycnochromis acares | (Randall & Swerdloff, 1973) | Pycnochromis acares | Pomacentridae | Midget chromis |
| Pycnochromis agilis | (Smith, 1960) | Pycnochromis agilis | Pomacentridae | Agile chromis |
| Pycnochromis alleni | (Randall, Ida & Moyer, 1981) | Pycnochromis alleni | Pomacentridae | Allen's chromis |
| Pycnochromis amboinensis | (Bleeker, 1871) | Pycnochromis amboinensis | Pomacentridae | Ambon chromis |
| Pycnochromis atripes | (Fowler & Bean, 1928) | Pycnochromis atripes | Pomacentridae | Dark-fin chromis |
| Pycnochromis bami | (Randall & McCosker, 1992) | Pycnochromis bami | Pomacentridae | |
| Pycnochromis caudalis | (Randall, 1988) | Pycnochromis caudalis | Pomacentridae | Blue-axil chromis |
| Pycnochromis delta | (Randall, 1988) | Pycnochromis delta | Pomacentridae | Deep reef chromis |
| Pycnochromis dimidiatus | (Klunzinger, 1871) | Pycnochromis dimidiatus | Pomacentridae | Chocolatedip chromis |
| Pycnochromis fatuhivae | (Randall, 2001) | Pycnochromis fatuhivae | Pomacentridae | |
| Pycnochromis fieldi | (Randall & DiBattista, 2013) | Pycnochromis fieldi | Pomacentridae | Two-tone Chromis |
| Pycnochromis flavipectoralis | (Randall, 1988) | Pycnochromis flavipectoralis | Pomacentridae | Malayan chromis |
| Pycnochromis hanui | (Randall & Swerdloff, 1973) | Pycnochromis hanui | Pomacentridae | Chocolate-dip Chromis |
| Pycnochromis howsoni | (Allen & Erdmann, 2014) | Pycnochromis howsoni | Pomacentridae | |
| Pycnochromis iomelas | (Jordan & Seale, 1906) | Pycnochromis iomelas | Pomacentridae | Half-and-half chromis |
| Pycnochromis leucurus | (Gilbert, 1905) | Pycnochromis leucurus | Pomacentridae | Whitetail chromis |
| Pycnochromis lineatus | (Fowler & Bean, 1928) | Pycnochromis lineatus | Pomacentridae | Lined chromis |
| Pycnochromis margaritifer | (Fowler, 1946) | Pycnochromis margaritifer | Pomacentridae | Bicolor chromis |
| Pycnochromis nigrurus | (Smith, 1960) | Pycnochromis nigrurus | Pomacentridae | Blacktail chromis |
| Pycnochromis ovatiformis | (Fowler, 1946) | Pycnochromis ovatiformis | Pomacentridae | Ovate chromis |
| Pycnochromis pacifica | (Allen & Erdmann, 2020) | Pycnochromis pacifica | Pomacentridae | Pacific bronze Chromis |
| Pycnochromis retrofasciatus | (Weber, 1913) | Pycnochromis retrofasciatus | Pomacentridae | Black-bar chromis |
| Pycnochromis vanderbilti | Fowler, 1941 | Pycnochromis vanderbilti | Pomacentridae | Vanderbilt's chromis |