Nomenclature of the following aromatic compound
Benzalamine seems to be an ocassionally and formerly used general name for compounds of the formula

$$\ce{C6H5-CH=N(R')R}$$

(where C6H5- is phenyl; R′ may be H). This name probably came from the fact that they can be prepared by a reaction of benzaldehyde with an amine:

$$\ce{C6H5-CH=O + R-NH-R' -&gt; C6H5-CH=N(R')R}$$

$\ce{C6H5-CH=NH-CH3}$ could be, in this manner, named methylbenzalamine or N-methylbenzalamine. You can also find name α-methylbenzalamine, which would be a different compound, $\ce{C6H5-CH(CH3)=NH2}$

However, according to the IUPAC nomenclature, the compound class is and imine, or aldimine. 

The correct name of $\ce{C6H5-CH=NH-CH3}$ would be


N-methyl-1-phenylmethanimine (preferred IUPAC name, 2013)


Also note that there is cis/trans (Z/E) isomerism possible.