mandible shape
abrupt attenuation near preapical tooth
abrupt attenuation near preapical tooth 
mandibles very straight with an abrupt attenuation near insertion of preapical tooth (Strumigenys)
mandibles armed with denticles
mandibles armed with denticles
The mandibles are linear and armed anteriorly with small denticles. Used in Antkey to separate Strumigenys species.
mandibles long and linear with 7 teeth
mandibles long and linear with 7 teeth
The mandible long and linear with seven teeth (one apical, one sub-apical, and five basal). Used in Antkey to separate Amblyopone zwaluwenburgi from Prionopelta species.
mandibles lacking abrupt attenuation
mandibles lacking abrupt attenuation
The mandibles are evenly curved, lacking abrupt attenuation near insertion of preapical tooth. Used in Antkey to separate Strumigenys godeffroyi and Strumigenys lewisi from Strumigenys lanuginosa.
mandibles with abrupt attenuation
mandibles with abrupt attenuation
The mandibles are very straight with an abrupt attenuation near insertion of preapical tooth. Used in Antkey to separate Strumigenys lanuginosa from Strumigenys godeffroyi and Strumigenys lewisi.
mandibles triangular
mandibles triangular
The mandible shape is roughly triangular, not linear. Used in Antkey to distinguish among many genera and species.
mandibles triangular
mandibles triangular
The mandibles are triangular. Used in Antkey to separate Strumigenys species.
mandibles tridentate
mandibles tridentate
The mandible somewhat linear and armed with three apical teeth. Used in Antkey to separate Amblyopone from Prionopelta.
apical fork present
apical fork present
The teeth at the apex of the mandibles form a vertically arranged fork of two or three enlarged, frequently spiniform teeth. Used in Antkey to separate Odontomachus from Leptogenys.
mandibles (Odontomachus simillimus)
mandibles (Odontomachus simillimus)
mandibles (Odontomachus simillimus)