diff --git a/xenomorph/xenomorph/array.rkt b/xenomorph/xenomorph/array.rkt
index 607be561..80bec279 100644
--- a/xenomorph/xenomorph/array.rkt
+++ b/xenomorph/xenomorph/array.rkt
@@ -13,8 +13,8 @@ approximates
 https://github.com/mbutterick/restructure/blob/master/src/Array.coffee
 |#
 
-(define xarray%
-  (class xenobase%
+(define x:array%
+  (class x:enobase%
     (super-new)
     (init-field [(@type type)] [(@len len)] [(@length-type length-type)])
     
@@ -94,11 +94,11 @@ https://github.com/mbutterick/restructure/blob/master/src/Array.coffee
                  #:count-bytes [count-bytes? #f]
                  #:pre-encode [pre-proc #f]
                  #:post-decode [post-proc #f])
-  (new (generate-subclass xarray% pre-proc post-proc) [type (or type-arg type-kwarg)]
+  (new (generate-subclass x:array% pre-proc post-proc) [type (or type-arg type-kwarg)]
        [len (or len-arg len-kwarg)]
        [length-type (if count-bytes? 'bytes length-type-arg)]))
 
-(define (xarray? x) (is-a? x xarray%))
+(define (xarray? x) (is-a? x x:array%))
   
 (module+ test
   (require rackunit "generic.rkt")
diff --git a/xenomorph/xenomorph/bitfield.rkt b/xenomorph/xenomorph/bitfield.rkt
index efe61d15..02fbd698 100644
--- a/xenomorph/xenomorph/bitfield.rkt
+++ b/xenomorph/xenomorph/bitfield.rkt
@@ -7,8 +7,8 @@ approximates
 https://github.com/mbutterick/restructure/blob/master/src/Bitfield.coffee
 |#
 
-(define xbitfield%
-  (class xenobase%
+(define x:bitfield%
+  (class x:enobase%
     (super-new)
     (init-field [(@type type)][(@flags flags)])
     (unless (andmap (λ (f) (or (symbol? f) (not f))) @flags)
@@ -38,7 +38,7 @@ https://github.com/mbutterick/restructure/blob/master/src/Bitfield.coffee
                     #:post-decode [post-proc #f])
   (define type (or type-arg type-kwarg))
   (define flags (or flag-arg flag-kwarg null))
-  (new (generate-subclass xbitfield% pre-proc post-proc) [type type] [flags flags]))
+  (new (generate-subclass x:bitfield% pre-proc post-proc) [type type] [flags flags]))
 
 (module+ test
   (require rackunit "number.rkt" "generic.rkt")
diff --git a/xenomorph/xenomorph/buffer.rkt b/xenomorph/xenomorph/buffer.rkt
index e6582996..a8622dbe 100644
--- a/xenomorph/xenomorph/buffer.rkt
+++ b/xenomorph/xenomorph/buffer.rkt
@@ -7,8 +7,8 @@ approximates
 https://github.com/mbutterick/restructure/blob/master/src/Buffer.coffee
 |#
 
-(define xbuffer%
-  (class xenobase%
+(define x:buffer%
+  (class x:enobase%
     (super-new)
     (init-field [(@len len)])
     (unless (length-resolvable? @len)
@@ -37,4 +37,4 @@ https://github.com/mbutterick/restructure/blob/master/src/Buffer.coffee
                   #:pre-encode [pre-proc #f]
                   #:post-decode [post-proc #f])
   (define len (or len-arg len-kwarg #xffff))
-  (new (generate-subclass xbuffer% pre-proc post-proc) [len len]))
\ No newline at end of file
+  (new (generate-subclass x:buffer% pre-proc post-proc) [len len]))
\ No newline at end of file
diff --git a/xenomorph/xenomorph/enum.rkt b/xenomorph/xenomorph/enum.rkt
index 835fa21d..829aef0e 100644
--- a/xenomorph/xenomorph/enum.rkt
+++ b/xenomorph/xenomorph/enum.rkt
@@ -7,8 +7,8 @@ approximates
 https://github.com/mbutterick/restructure/blob/master/src/Enum.coffee
 |#
 
-(define xenum%
-  (class xenobase%
+(define x:enum%
+  (class x:enobase%
     (super-new)
     (init-field [(@type type)] [(@values values)])
      
@@ -37,4 +37,4 @@ https://github.com/mbutterick/restructure/blob/master/src/Enum.coffee
                 #:post-decode [post-proc #f])
   (define type (or type-arg type-kwarg))
   (define values (or values-arg values-kwarg))
-  (new (generate-subclass xenum% pre-proc post-proc) [type type] [values values]))
\ No newline at end of file
+  (new (generate-subclass x:enum% pre-proc post-proc) [type type] [values values]))
\ No newline at end of file
diff --git a/xenomorph/xenomorph/helper.rkt b/xenomorph/xenomorph/helper.rkt
index a4d2e9f1..40e62bbe 100644
--- a/xenomorph/xenomorph/helper.rkt
+++ b/xenomorph/xenomorph/helper.rkt
@@ -16,7 +16,7 @@
     (file-position p new-pos))
   (file-position p))
 
-(define xenomorphic<%>
+(define x:enomorphic<%>
   (interface* ()
               ([(generic-property gen:xenomorphic)
                 (generic-method-table
@@ -38,7 +38,7 @@
                  (define (size xo [val #f] #:parent [parent #f])
                    (send xo x:size val parent)))])))
 
-(define (xenomorphic-type? x) (is-a? x xenobase%))
+(define (xenomorphic-type? x) (is-a? x x:enobase%))
 
 (define-syntax-rule (generate-subclass CLASS PRE-ENCODE-PROC POST-DECODE-PROC)
   (cond
@@ -57,8 +57,8 @@
        (define/override (post-decode x) (POST-DECODE-PROC (super post-decode x))))]
     [else CLASS]))
 
-(define xenobase%
-  (class* object% (xenomorphic<%>)
+(define x:enobase%
+  (class* object% (x:enomorphic<%>)
     (super-new)
     
     (define/pubment (x:decode input-port [parent #f])
diff --git a/xenomorph/xenomorph/lazy-array.rkt b/xenomorph/xenomorph/lazy-array.rkt
index 7ad31b43..7e1f8efb 100644
--- a/xenomorph/xenomorph/lazy-array.rkt
+++ b/xenomorph/xenomorph/lazy-array.rkt
@@ -8,8 +8,8 @@ approximates
 https://github.com/mbutterick/restructure/blob/master/src/LazyArray.coffee
 |#
  
-(define xlazy-array%
-  (class xarray%
+(define x:lazy-array%
+  (class x:array%
     (super-new)
     (inherit-field [@type type] [@len len])
 
@@ -45,7 +45,7 @@ https://github.com/mbutterick/restructure/blob/master/src/LazyArray.coffee
                       #:post-decode [post-proc #f])
   (define type (or type-arg type-kwarg))
   (define len (or len-arg len-kwarg))
-  (new (generate-subclass xlazy-array% pre-proc post-proc) [type type]
+  (new (generate-subclass x:lazy-array% pre-proc post-proc) [type type]
        [len len]
        [length-type 'count]))
 
diff --git a/xenomorph/xenomorph/number.rkt b/xenomorph/xenomorph/number.rkt
index b103b6cf..5562ae81 100644
--- a/xenomorph/xenomorph/number.rkt
+++ b/xenomorph/xenomorph/number.rkt
@@ -23,8 +23,8 @@ https://github.com/mbutterick/restructure/blob/master/src/Number.coffee
 
 (define system-endian (if (system-big-endian?) 'be 'le))
 
-(define xnumber%
-  (class xenobase%
+(define x:number%
+  (class x:enobase%
     (super-new)
     (init-field [(@size size)] [(@endian endian)])
     
@@ -37,10 +37,10 @@ https://github.com/mbutterick/restructure/blob/master/src/Number.coffee
     
     (define/augment (x:size . _) @size)))
 
-(define (xint? x) (is-a? x xint%))
+(define (xint? x) (is-a? x x:int%))
 
-(define xint%
-  (class xnumber%
+(define x:int%
+  (class x:number%
     (super-new)
     (init-field signed)
     (inherit-field (@endian endian) (@size size) @bits)
@@ -75,7 +75,7 @@ https://github.com/mbutterick/restructure/blob/master/src/Number.coffee
                #:endian [endian system-endian]
                  #:pre-encode [pre-proc #f]
                  #:post-decode [post-proc #f])
-  (new (generate-subclass xint% pre-proc post-proc) [size size] [signed signed] [endian endian]))
+  (new (generate-subclass x:int% pre-proc post-proc) [size size] [signed signed] [endian endian]))
 
 (define int8 (+xint 1))
 (define int16 (+xint 2))
@@ -145,8 +145,8 @@ https://github.com/mbutterick/restructure/blob/master/src/Number.coffee
   (check-equal? (encode int8 -1 #f) (bytes 255))
   (check-equal? (encode int8 127 #f) (bytes 127)))
 
-(define xfloat%
-  (class xnumber%
+(define x:float%
+  (class x:number%
     (super-new)
     (inherit-field (@size size) (@endian endian))
                 
@@ -159,7 +159,7 @@ https://github.com/mbutterick/restructure/blob/master/src/Number.coffee
 (define (+xfloat [size 4] #:endian [endian system-endian]
                  #:pre-encode [pre-proc #f]
                  #:post-decode [post-proc #f])
-  (new (generate-subclass xfloat% pre-proc post-proc) [size size] [endian endian]))
+  (new (generate-subclass x:float% pre-proc post-proc) [size size] [endian endian]))
 
 (define float (+xfloat 4))
 (define floatbe (+xfloat 4 #:endian 'be))
@@ -169,8 +169,8 @@ https://github.com/mbutterick/restructure/blob/master/src/Number.coffee
 (define doublebe (+xfloat 8 #:endian 'be))
 (define doublele (+xfloat 8 #:endian 'le))
 
-(define xfixed%
-  (class xint%
+(define x:fixed%
+  (class x:int%
     (super-new)
     (init-field [(@fracbits fracbits)])
     (unless (exact-positive-integer? @fracbits)
@@ -190,7 +190,7 @@ https://github.com/mbutterick/restructure/blob/master/src/Number.coffee
                  #:fracbits [fracbits (/ (* size 8) 2)]
                  #:pre-encode [pre-proc #f]
                  #:post-decode [post-proc #f])  
-  (new (generate-subclass xfixed% pre-proc post-proc) [size size] [signed signed] [endian endian] [fracbits fracbits]))
+  (new (generate-subclass x:fixed% pre-proc post-proc) [size size] [signed signed] [endian endian] [fracbits fracbits]))
 
 (define fixed16 (+xfixed 2))
 (define fixed16be (+xfixed 2 #:endian 'be))
diff --git a/xenomorph/xenomorph/optional.rkt b/xenomorph/xenomorph/optional.rkt
index c2c7de49..52feb244 100644
--- a/xenomorph/xenomorph/optional.rkt
+++ b/xenomorph/xenomorph/optional.rkt
@@ -7,8 +7,8 @@ approximates
 https://github.com/mbutterick/restructure/blob/master/src/Optional.coffee
 |#
 
-(define xoptional%
-  (class xenobase%
+(define x:optional%
+  (class x:enobase%
     (super-new)
     (init-field [(@type type)] [(@condition condition)])
 
@@ -42,4 +42,4 @@ https://github.com/mbutterick/restructure/blob/master/src/Optional.coffee
                       [(and (eq? cond-arg no-val) (eq? cond-kwarg no-val)) #true]
                       [(not (eq? cond-arg no-val)) cond-arg]
                       [(not (eq? cond-kwarg no-val)) cond-kwarg]))
-  (new (generate-subclass xoptional% pre-proc post-proc) [type type] [condition condition]))
+  (new (generate-subclass x:optional% pre-proc post-proc) [type type] [condition condition]))
diff --git a/xenomorph/xenomorph/pointer.rkt b/xenomorph/xenomorph/pointer.rkt
index 5e404dac..19658a2d 100644
--- a/xenomorph/xenomorph/pointer.rkt
+++ b/xenomorph/xenomorph/pointer.rkt
@@ -23,8 +23,8 @@ https://github.com/mbutterick/restructure/blob/master/src/Pointer.coffee
     [(xvoid-pointer? val) (values (xvoid-pointer-type val) (xvoid-pointer-value val))]
     [else (raise-argument-error 'Pointer:size "VoidPointer" val)]))
 
-(define xpointer%
-  (class xenobase%
+(define x:pointer%
+  (class x:enobase%
     (super-new)
     (init-field [(@offset-type offset-type)]
                 [(@type type)]
@@ -103,7 +103,7 @@ https://github.com/mbutterick/restructure/blob/master/src/Pointer.coffee
   (unless (memq pointer-relative-to valid-pointer-relatives)
     (raise-argument-error '+xpointer (format "~v" valid-pointer-relatives) pointer-relative-to))
   (define type-in (or type-arg type-kwarg uint8))
-  (new (generate-subclass xpointer% pre-proc post-proc)
+  (new (generate-subclass x:pointer% pre-proc post-proc)
        [offset-type (or offset-arg offset-kwarg uint8)]
        [type (case type-in [(void) #f][else type-in])]
        [pointer-relative-to pointer-relative-to]
@@ -112,10 +112,10 @@ https://github.com/mbutterick/restructure/blob/master/src/Pointer.coffee
        [null-value null-value]))
 
 ;; A pointer whose type is determined at decode time
-(define xvoid-pointer% (class xenobase%
+(define x:void-pointer% (class x:enobase%
                          (super-new)
                          (init-field type value)))
-(define (+xvoid-pointer . args) (apply make-object xvoid-pointer% args))
-(define (xvoid-pointer? x) (is-a? x xvoid-pointer%))
+(define (+xvoid-pointer . args) (apply make-object x:void-pointer% args))
+(define (xvoid-pointer? x) (is-a? x x:void-pointer%))
 (define (xvoid-pointer-type x) (get-field type x))
 (define (xvoid-pointer-value x) (get-field value x))
diff --git a/xenomorph/xenomorph/reserved.rkt b/xenomorph/xenomorph/reserved.rkt
index c50416fb..3169c5cd 100644
--- a/xenomorph/xenomorph/reserved.rkt
+++ b/xenomorph/xenomorph/reserved.rkt
@@ -7,8 +7,8 @@ approximates
 https://github.com/mbutterick/restructure/blob/master/src/Reserved.coffee
 |#
 
-(define xreserved%
-  (class xenobase%
+(define x:reserved%
+  (class x:enobase%
     (super-new)
     (init-field [(@type type)] [(@count count)])
 
@@ -32,4 +32,4 @@ https://github.com/mbutterick/restructure/blob/master/src/Reserved.coffee
                     #:post-decode [post-proc #f])
   (define type (or type-arg type-kwarg))
   (define count (or count-arg count-kwarg 1))
-  (new (generate-subclass xreserved% pre-proc post-proc) [type type] [count count]))
\ No newline at end of file
+  (new (generate-subclass x:reserved% pre-proc post-proc) [type type] [count count]))
\ No newline at end of file
diff --git a/xenomorph/xenomorph/string.rkt b/xenomorph/xenomorph/string.rkt
index 017996f9..8f86fa8c 100644
--- a/xenomorph/xenomorph/string.rkt
+++ b/xenomorph/xenomorph/string.rkt
@@ -28,8 +28,8 @@ https://github.com/mbutterick/restructure/blob/master/src/String.coffee
 (define (bytes-left-in-port? port)
   (not (eof-object? (peek-byte port))))
 
-(define xstring%
-  (class xenobase%
+(define x:string%
+  (class x:enobase%
     (super-new)
     (init-field [(@len len)] [(@encoding encoding)])
 
@@ -87,10 +87,10 @@ https://github.com/mbutterick/restructure/blob/master/src/String.coffee
                   #:post-decode [post-proc #f])
   (define len (or len-arg len-kwarg))
   (define encoding (or enc-arg enc-kwarg 'ascii))
-  (new (generate-subclass xstring% pre-proc post-proc) [len len] [encoding encoding]))
+  (new (generate-subclass x:string% pre-proc post-proc) [len len] [encoding encoding]))
 
-(define xsymbol%
-  (class xstring%
+(define x:symbol%
+  (class x:string%
     (super-new)
     (inherit-field len encoding)
 
@@ -108,7 +108,7 @@ https://github.com/mbutterick/restructure/blob/master/src/String.coffee
                   #:post-decode [post-proc #f])
   (define len (or len-arg len-kwarg))
   (define encoding (or enc-arg enc-kwarg 'utf8))
-  (new (generate-subclass xsymbol% pre-proc post-proc) [len len] [encoding encoding]))
+  (new (generate-subclass x:symbol% pre-proc post-proc) [len len] [encoding encoding]))
 
 (module+ test
   (require rackunit "generic.rkt")
diff --git a/xenomorph/xenomorph/struct.rkt b/xenomorph/xenomorph/struct.rkt
index a5357877..721eeb17 100644
--- a/xenomorph/xenomorph/struct.rkt
+++ b/xenomorph/xenomorph/struct.rkt
@@ -45,8 +45,8 @@ https://github.com/mbutterick/restructure/blob/master/src/Struct.coffee
     (hash-set! h k v))
   h)
 
-(define xstruct%
-  (class xenobase%
+(define x:struct%
+  (class x:enobase%
     (super-new)
     (init-field [(@fields fields)])
     
@@ -93,7 +93,7 @@ https://github.com/mbutterick/restructure/blob/master/src/Struct.coffee
       (define pointers-size (if include-pointers (dict-ref parent 'pointerSize) 0))
       (+ fields-size pointers-size))))
 
-(define (xstruct? x) (is-a? x xstruct%))
+(define (xstruct? x) (is-a? x x:struct%))
 
 (define (+xstruct #:pre-encode [pre-proc #f]
                   #:post-decode [post-proc #f] . dicts)
@@ -104,7 +104,7 @@ https://github.com/mbutterick/restructure/blob/master/src/Struct.coffee
                    (unless (symbol? (car kv))
                      (raise-argument-error '+xstruct "symbol" (car kv)))
                    (apply cons kv)))
-  (new (generate-subclass xstruct% pre-proc post-proc) [fields fields]))
+  (new (generate-subclass x:struct% pre-proc post-proc) [fields fields]))
 
 (module+ test
   (require rackunit "number.rkt" "generic.rkt")
diff --git a/xenomorph/xenomorph/versioned-struct.rkt b/xenomorph/xenomorph/versioned-struct.rkt
index e6c09740..6c539c90 100644
--- a/xenomorph/xenomorph/versioned-struct.rkt
+++ b/xenomorph/xenomorph/versioned-struct.rkt
@@ -10,8 +10,8 @@ approximates
 https://github.com/mbutterick/restructure/blob/master/src/VersionedStruct.coffee
 |#
 
-(define xversioned-struct%
-  (class xstruct%
+(define x:versioned-struct%
+  (class x:struct%
     (super-new)
     (init-field [(@type type)] [(@versions versions)])
 
@@ -100,10 +100,10 @@ https://github.com/mbutterick/restructure/blob/master/src/VersionedStruct.coffee
       (define pointer-size (if include-pointers (dict-ref parent 'pointerSize) 0))
       (+ version-size header-size fields-size pointer-size))))
 
-(define (xversioned-struct? x) (is-a? x xversioned-struct%))
+(define (xversioned-struct? x) (is-a? x x:versioned-struct%))
 
 (define (+xversioned-struct type [versions (dictify)]
                             #:pre-encode [pre-proc #f]
                             #:post-decode [post-proc #f])
-  (new (generate-subclass xversioned-struct% pre-proc post-proc) [type type] [versions versions][fields #f]))
+  (new (generate-subclass x:versioned-struct% pre-proc post-proc) [type type] [versions versions][fields #f]))