The Free On-line Dictionary of Computing (30 December 2018):

LISP 2

   LISP 1.5 with an ALGOL 60-like surface syntax.  Also
   optional type declarations, new data types including
   integer-indexed arrays and character strings, partial-word
   extraction/insertion operators and macros.  A
   pattern-matching facility similar to COMIT was proposed.
   Implemented for the Q-32 computer.

   ["The LISP 2 Programming Language and System", P.W.  Abrahams
   et al, Proc FJCC 29:661-676, AFIPS (Fall 1966).]