diff --git a/src/Core.hs b/src/Core.hs
index ece6aff9..92683bd8 100644
--- a/src/Core.hs
+++ b/src/Core.hs
@@ -73,12 +73,12 @@ instance Show MacroVar where
   show (MacroVar i) = "(MacroVar " ++ show (hashUnique i) ++ ")"
 
 data TypePattern
-  = TypePattern (TyF (Ident, Var))
-  | AnyType Ident Var
+  = TypeCtorPattern (TyF (Ident, Var))
+  | TypePatternVar Ident Var
   deriving (Data, Eq, Show)
 
 data ConstructorPatternF pat
-  = CtorPattern !Constructor [pat]
+  = DataCtorPattern !Constructor [pat]
   | PatternVar Ident Var
   deriving (Data, Eq, Foldable, Functor, Show, Traversable)
 makePrisms ''ConstructorPatternF
@@ -391,8 +391,8 @@ instance AlphaEq ConstructorPattern where
     alphaCheck (unConstructorPattern p1) (unConstructorPattern p2)
 
 instance AlphaEq a => AlphaEq (ConstructorPatternF a) where
-  alphaCheck (CtorPattern c1 vars1)
-             (CtorPattern c2 vars2) = do
+  alphaCheck (DataCtorPattern c1 vars1)
+             (DataCtorPattern c2 vars2) = do
     alphaCheck c1 c2
     for_ (zip vars1 vars2) (uncurry alphaCheck)
   alphaCheck (PatternVar _ x1)
@@ -401,11 +401,11 @@ instance AlphaEq a => AlphaEq (ConstructorPatternF a) where
   alphaCheck _ _ = notAlphaEquivalent
 
 instance AlphaEq TypePattern where
-  alphaCheck (TypePattern t1)
-             (TypePattern t2) =
+  alphaCheck (TypeCtorPattern t1)
+             (TypeCtorPattern t2) =
     alphaCheck t1 t2
-  alphaCheck (AnyType _ x1)
-             (AnyType _ x2) =
+  alphaCheck (TypePatternVar _ x1)
+             (TypePatternVar _ x2) =
     alphaCheck x1 x2
   alphaCheck _ _ = notAlphaEquivalent
 
@@ -599,7 +599,7 @@ instance ShortShow ConstructorPattern where
   shortShow = shortShow . unConstructorPattern
 
 instance ShortShow a => ShortShow (ConstructorPatternF a) where
-  shortShow (CtorPattern ctor vars) =
+  shortShow (DataCtorPattern ctor vars) =
     "(" ++ shortShow ctor ++
     " " ++ intercalate " " (map shortShow vars) ++
     ")"
@@ -607,10 +607,10 @@ instance ShortShow a => ShortShow (ConstructorPatternF a) where
     "(PatternVar " ++ shortShow ident ++ " )"
 
 instance ShortShow TypePattern where
-  shortShow (TypePattern t) =
+  shortShow (TypeCtorPattern t) =
     "(" ++ shortShow (fmap fst t) ++ ")"
-  shortShow (AnyType ident _var) =
-    "(AnyConstructor " ++ shortShow ident ++ " )"
+  shortShow (TypePatternVar ident _var) =
+    "(TypePatternVar " ++ shortShow ident ++ " )"
 
 
 instance ShortShow SyntaxPattern where
diff --git a/src/Evaluator.hs b/src/Evaluator.hs
index d5aa114c..97a3225e 100644
--- a/src/Evaluator.hs
+++ b/src/Evaluator.hs
@@ -284,7 +284,7 @@ doDataCase loc v0 ((pat, rhs) : ps) =
       [(ConstructorPatternF ConstructorPattern, Value)] {- ^ Subpatterns and their scrutinees -} ->
       Eval Value
     match _fk sk [] = sk
-    match fk sk ((CtorPattern ctor subPats, tgt) : more) =
+    match fk sk ((DataCtorPattern ctor subPats, tgt) : more) =
       case tgt of
         ValueCtor c args
           | c == ctor ->
@@ -300,7 +300,7 @@ doTypeCase blameLoc v0 [] = throwError (EvalErrorCase blameLoc (ValueType v0))
 doTypeCase blameLoc (Ty v0) ((p, rhs0) : ps) = match (doTypeCase blameLoc (Ty v0) ps) p rhs0 v0
   where
     match :: Eval Value -> TypePattern -> Core -> TyF Ty -> Eval Value
-    match next (TypePattern t) rhs scrut =
+    match next (TypeCtorPattern t) rhs scrut =
       case (t, scrut) of
         -- unification variables never match; instead, type-case remains stuck
         -- until the variable is unified with a concrete type constructor or a
@@ -315,7 +315,7 @@ doTypeCase blameLoc (Ty v0) ((p, rhs0) : ps) = match (doTypeCase blameLoc (Ty v0
                                 | arg <- args2]
                                 (eval rhs)
         (_, _) -> next
-    match _next (AnyType n x) rhs scrut =
+    match _next (TypePatternVar n x) rhs scrut =
       withExtendedEnv n x (ValueType (Ty scrut)) (eval rhs)
 
 doCase :: SrcLoc -> Value -> [(SyntaxPattern, Core)] -> Eval Value
diff --git a/src/Expander.hs b/src/Expander.hs
index 3d5e28d3..2ae7ddf5 100644
--- a/src/Expander.hs
+++ b/src/Expander.hs
@@ -1254,7 +1254,7 @@ expandOneForm prob stx
                     pure ptr
                   modifyState $ set (expanderPatternBinders . at dest) $ Just $ Left subPtrs
                   linkPattern dest $
-                    CtorPattern ctor subPtrs
+                    DataCtorPattern ctor subPtrs
             other ->
               throwError $
               WrongSyntacticCategory stx (tenon ExpressionCat :| []) (mortise $ problemCategory other)
diff --git a/src/Expander/Primitives.hs b/src/Expander/Primitives.hs
index bf25b48f..14a31f74 100644
--- a/src/Expander/Primitives.hs
+++ b/src/Expander/Primitives.hs
@@ -546,9 +546,9 @@ typeConstructor ctor argKinds = (implT, implP)
           sch <- trivialScheme tType
           -- FIXME kind check here
           linkTypePattern dest
-            (TypePattern $ TyF ctor [ (varStx, var)
-                                    | (_, varStx, var) <- varInfo
-                                    ])
+            (TypeCtorPattern $ TyF ctor [ (varStx, var)
+                                        | (_, varStx, var) <- varInfo
+                                        ])
             [ (sc, n, x, sch)
             | (sc, n, x) <- varInfo
             ]
@@ -679,7 +679,7 @@ elsePattern (TypePatternDest dest) stx = do
   ty <- trivialScheme tType
   (sc, x, v) <- prepareVar var
   linkTypePattern dest
-    (AnyType x v)
+    (TypePatternVar x v)
     [(sc, x, v, ty)]
 elsePattern other stx = do
   throwError $
diff --git a/src/Pretty.hs b/src/Pretty.hs
index 238d37c5..2f0016e7 100644
--- a/src/Pretty.hs
+++ b/src/Pretty.hs
@@ -210,16 +210,16 @@ instance PrettyBinder VarInfo BinderPair where
     (annotate (BindingSite x) (text n), Env.singleton x ident ())
 
 instance PrettyBinder VarInfo TypePattern where
-  ppBind env (TypePattern t) =
+  ppBind env (TypeCtorPattern t) =
     ppBind env (fmap BinderPair t)
-  ppBind env (AnyType ident x) =
+  ppBind env (TypePatternVar ident x) =
     ppBind env (BinderPair (ident, x))
 
 instance PrettyBinder VarInfo ConstructorPattern where
   ppBind env pat = ppBind env (unConstructorPattern pat)
 
 instance PrettyBinder VarInfo a => PrettyBinder VarInfo (ConstructorPatternF a) where
-  ppBind env (CtorPattern ctor subPats) =
+  ppBind env (DataCtorPattern ctor subPats) =
     case subPats of
       [] -> (pp env ctor, Env.empty)
       _nonEmpty ->