Diagrammatic representation of the latero-sensory system on the dorsal surface of the head in: A. Nothobranchius lucius, MRAC A7-02-P-28-32, male, 43.6 mm SL; B. Nothobranchius insularis sp. n., MRAC A702-P-38-44, paratype, male, 48.3 mm SL. arn – anterior rostral neuromast; asass – anterior section of the anterior supraorbital series; prn – posterior rostral neuromast; psass – posterior section of the anterior supraorbital series; pss – posterior supraorbital series.