Within this genus, the Yellowtail cribo is the longest, and has been known to reach 10 feet (3.05m) in length. Its cousin, the indigo snake, is the longest snake in North America, as the cribo's distribution is limited to Central and South America.
It is carnivorous and will eat any other small animal it can overpower. As it is not a constrictor and is nonvenomous, it subdues prey by thrashing it about until it can pin it down and swallow it whole.
Species in this genus include:
- Newly discovered species Drymarchon caudomaculatus
- Yellowtail cribo Drymarchon corais corais
- Eastern Indigo Snake Drymarchon corais couperi or Drymarchon couperi
- Texas Indigo Snake Drymarchon corais erebennus
- Margarita Island cribo Drymarchon corais margaritae
- Blacktail cribo Drymarchon corais melanurus
- Mexican Redtail cribo Drymarchon corais rubidius
- Unicolor cribo Drymarchon corais unicolor
- "Black Snakes": Identification and Ecology - University of Florida fact sheet