Species name: Cryptocentrus Cinctus
Common names: Yellow Shrimp Goby, Yellow Watchman Goby
Family: Gobiidae (Gobies)
Subfamily: Gobiinae
Order: Perciformes (perch-likes)
Class: Actinopterygii (ray-finned fishes)
Maximum length: 4 in.
Minimum tank size: 20 gallons

Species name: Valencienna wardii
Common names: Tiger watchman goby, Ward’s Sleeper, Ward’s Tiger, or Tiger Sleeper Goby
Family: Gobiidae (Gobies)
Subfamily: Gobiinae
Order: Perciformes (perch-likes)
Class: Actinopterygii (ray-finned fishes)
Maximum length: 5.1 in

Species name: Valencienna puellaris
Common name: Diamond “watchman” goby
Family: Gobiidae (Gobies)
Subfamily: Gobiinae
Order: Perciformes (perch-likes)
Class: Actinopterygii (ray-finned fishes)
Maximum length: 7.8 in.
Minimum tank size: 50 gallon or larger

Species name: Gobiodon citrinus
Common names: Poison, Citrin, Citron or Clown Goby
Family: Gobiidae (Gobies)
Subfamily: Gobiinae
Order: Perciformes (perch-likes)
Class: Actinopterygii (ray-finned fishes)
Maximum length: 2.6 in.
Minimum tank size: 30 gallon

Species name: Gobiodon histrio
Common names: Green Clown Goby
Family: Gobiidae (Gobies)
Subfamily: Gobiinae
Order: Perciformes (perch-likes)
Class: Actinopterygii (ray-finned fishes)
Maximum length: 1.4
Minimum tank size: 20 gallon