Spectrally sensitized silver halide photographic emulsion

A spectrally sensitized silver halide photographic emulsion containing a supersensitizing amount of a dye combination comprising at least one dye represented by the following general formula (I):

• ##STR19## wherein Z.sup.1 represents the atoms necessary to complete a benzisoxazole ring;
• Q.sup.1 represents the atoms necessary to complete a 2-thio-oxazolidine-2,4-dione ring, a rhodanine ring or a 2-thiohydantoin ring;
• and R.sup.1 represents an aliphatic group, in combination with at least one cyanine or merocyanine dye which contains no benzisoxazole ring, said cyanine dye which contains no benzisoxazole ring being a dye represented by the following general formula (II):
• ##STR20## wherein Z.sup.2 and Z.sup.3 each represents the stoms necessary to complete an imidazole ring, an oxazole ring, a thiazole ring, a selenazole ring, a thiazoline ring, a quinoline ring or an indolenine ring;
• R.sup.4 and R.sup.5 each represents an aliphatic group;
• R.sup.6 represents a hydrogen atom, an alkyl group, an aralkyl group or an aryl group;
• m represents 0 or 1;
• X represents an acid anion;
• and n represents 1 or 2;
• said merocyanine dye which contains no benzisoxazole ring being a dye represented by the following general formula (III):
• ##STR21## wherein Z.sup.4 represents the atoms necessary to complete an oxazole ring, a thiazole ring, a selenazole ring, a thiazoline ring, an imidazole ring, a 2-quinoline ring, a 4-quinoline ring, a pyridine ring, a pyrroline ring, or a tetrazole ring;
• Q.sup.2 represents the atoms necessary to complete a 2-thio-oxazolidine-2,4-dione ring, a rhodanine ring or a 2-thiohydantoin ring;
• R.sup.7 represents an aliphatic group;
• R.sup.8 represents a hydrogen atom, an alkyl group or an aryl group;
• and p and d each represents 0 or 1.