| Slender codling | |
|---|---|
|  | |
| Drawing by Dr Tony Ayling | |
| Scientific classification | |
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Actinopterygii | 
| Order: | Gadiformes | 
| Family: | Moridae | 
| Genus: | Halargyreus Günther, 1862 | 
| Species: | H. johnsonii | 
| Binomial name | |
| Halargyreus johnsonii Günther, 1862 | |
The slender codling or slender cod, Halargyreus johnsonii, is a morid cod, the only species in the genus Halargyreus. It is found in all oceans, at depths from 450 to 3,000 m (1,480 to 9,840 ft), and grows to 56 cm (22 in) in total length. First discovered by and named after James Yate Johnson.