“…Many larval AC types are also present in adults, as determined by dye (Connaughton et al, 2004 ) and/or immunolabeling (Marc and Cameron, 2001 ; Yazulla and Studholme, 2001 ; Arenzana et al, 2006 ; Yeo et al, 2009 ; Jang et al, 2011 ). These cells exhibit narrow, medium, or wide field dendritic arbors (Jusuf and Harris, 2009 ; Lewis et al, 2015 ) and are widely distributed over the entire retina (Yeo et al, 2009 ; Torvund et al, 2017 ); although it appears the density of parvalbumin s4, and tyrosine hydroxylase (dopaminergic) types is greater in temporal-ventral, or ventral retina than nasal retina (Yeo et al, 2009 ; Jang et al, 2011 ). In adult zebrafish, AC light responses are either transient or sustained, with excitation observed at light ON, light OFF, or both light ON and light OFF (Torvund et al, 2017 ).…”