epidermis outer layer,epidermis inner layer,ionocyte,fin crest,mucociliary epithelium,keratinocyte,Leydig cell,epidermal cell,migrating macrophage,small secretory cell,basal cell,skin,olfactory organ,olfactory nerve,olfactory pit,fin margin,nuptial pad,Jacobson's organ,choana,breeding gland,olfactory placode,neuromast mantle cell,Leydig cell,Eberth-Kastschenko layer,fin crest,skin gland,ionocyte,goblet cell,xanthoblast,epidermis inner layer,migrating macrophage,dermis,pigment cell,stratum compactum,keratinocyte,stratum spongiosum,iridoblast,breeding gland,neuromast support cell,basal cell,epidermis outer layer,epidermis,small secretory cell,epidermal cell,mucociliary epithelium