Yawancin lokaci, tara manyan symmetrical platelike scales suna kan kambi na kai, amma a cikin dukkan nau'in, waɗannan galibi suna da rabuwa ko kuma suna da sutura, musamman a cikin A. bilineatus. Dukkanin suna da canthus rostralis da aka ƙayyade sosai da kuma ɗalibin elliptical a tsaye. Yawancin lokaci takwas (6-10) supralabial scales da kuma yawanci 10-11 (8-13) sublabials suna nan. Scales na dorsal sun fi yawa kuma suna da yawa a tsakiyar jiki 21-25 (yawanci 23), yayin da A. piscivorus yana da 23-27 (yawanci 25). Maciji yana da 127-157 da kuma 36-71 subchondral scales. Wasu anal scales suna kan kambi na kai, amma a cikin dukkan nau'in, waɗannan galibi ba su da daidaituwa ko kuma suna da sutura, musamman a cikin A. bilineatus. Dukkanin suna da canthus rostralis mai ma'ana da kuma ɗaliban elliptical a tsaye. Yawancin lokaci takwas (6-10) supralabial scales da yawanci 10-11 (8-13) sublabials suna nan.
gajere