| Species | Name Used in Reference |
|---|---|
| Letharchus aliculatus McCosker, 1974 | Letharchus aliculatus (p. 626-628 ) |
| Letharchus rosenblatti McCosker, 1974 | Letharchus rosenblatti (p. 625-626 ) |
| Letharchus velifer Goode & Bean, 1882 | Letharchus velifer (p. 624-625 ) |
| Paraletharchus opercularis (Myers & Wade, 1941) | Paraletharchus opercularis (p. 622-623 ) |
| Paraletharchus pacificus (Osburn & Nichols, 1916) | Paraletharchus pacificus (p. 621-622 ) |