Sida caadiga ah, sagaal dhagax oo waaweyn oo simmetrical ah ayaa ku yaal madaxa madaxa, laakiin dhammaan noocyada, inta badan waa kuwo aan caadi ahayn ama waxay leeyihiin sutures, gaar ahaan A. bilineatus. Dhammaan waxay leeyihiin canthus rostralis oo si fiican loo qeexay iyo ardayga vertical elliptical ah. Sida caadiga ah siddeed (6-10) miisaanka supralabial iyo sida caadiga ah 10-11 (8-13) sublabials ayaa jira. Miisaanka dhabarka ayaa inta badan ku jira midab isku dhafan iyo mid dhexdhexaad ah 21-25 (sida caadiga ah 23), halka A. piscivorus uu leeyahay 23-27 (sida caadiga ah 25).
gaaban