On the existence of additional solutions of the equations in the (1/2,0)0,1/2) representation space.
We analyze dispersion relations of the equations recently proposed by Ahluwalia for describing the neutrino. Equations for type-II spinors are deduced on the basis of the Wigner rules for left- and right- 2-spinors and the Ryder-Burgard relation. It is shown that the equations contain acausal solutions which are similar to those of the Dirac-like second-order equation. The latter is obtained in a similar way, provided that we do not apply any constraints in the calculation.