diff --git a/data/json/items/armor/integrated.json b/data/json/items/armor/integrated.json
index 72ae6d7ac48e5..4a944518294e0 100644
--- a/data/json/items/armor/integrated.json
+++ b/data/json/items/armor/integrated.json
@@ -804,32 +804,111 @@
     ]
   },
   {
-    "id": "integrated_scales",
+    "id": "integrated_sparse_scales",
     "type": "ARMOR",
     "category": "armor",
     "name": { "str_sp": "sparse scales" },
     "description": "Your dermis has toughened and started to grow scales in places.",
-    "weight": "1 kg",
-    "volume": "900 ml",
+    "weight": "400 g",
+    "volume": "400 ml",
     "price": 0,
     "price_postapoc": 0,
-    "material": [ "hflesh", "mut_bone", "chitin" ],
+    "material": [ "hflesh", "mut_scales" ],
     "symbol": "x",
     "color": "light_red",
     "warmth": 1,
     "environmental_protection": 1,
-    "flags": [ "INTEGRATED", "ALLOWS_NATURAL_ATTACKS", "UNBREAKABLE", "PERSONAL", "WATER_FRIENDLY", "PADDED", "SOFT", "NO_SALVAGE" ],
+    "flags": [ "INTEGRATED", "ALLOWS_NATURAL_ATTACKS", "UNBREAKABLE", "PERSONAL", "WATER_FRIENDLY" ],
     "armor": [
       {
         "material": [
-          { "type": "hflesh", "covered_by_mat": 100, "thickness": 1 },
-          { "type": "bone", "covered_by_mat": 60, "thickness": 1 },
-          { "type": "chitin", "covered_by_mat": 60, "thickness": 1 }
+          { "type": "hflesh", "covered_by_mat": 100, "thickness": 0.5 },
+          { "type": "mut_scales", "covered_by_mat": 45, "thickness": 1.0 }
         ],
-        "covers": [ "hand_l", "hand_r", "foot_l", "foot_r", "leg_l", "leg_r", "arm_l", "arm_r", "torso", "head" ],
+        "covers": [ "head" ],
+        "coverage": 100,
+        "encumbrance": 0,
+        "breathability": "GOOD"
+      },
+      {
+        "material": [
+          { "type": "hflesh", "covered_by_mat": 100, "thickness": 0.5 },
+          { "type": "mut_scales", "covered_by_mat": 50, "thickness": 1.0 }
+        ],
+        "covers": [ "torso", "arm_l", "arm_r", "leg_l", "leg_r" ],
         "coverage": 100,
         "encumbrance": 0,
         "breathability": "GOOD"
+      },
+      {
+        "material": [
+          { "type": "hflesh", "covered_by_mat": 100, "thickness": 0.5 },
+          { "type": "mut_scales", "covered_by_mat": 45, "thickness": 0.5 }
+        ],
+        "covers": [ "hand_l", "hand_r", "foot_l", "foot_r" ],
+        "coverage": 100,
+        "encumbrance": 0,
+        "breathability": "GOOD"
+      }
+    ]
+  },
+  {
+    "id": "integrated_scales",
+    "type": "ARMOR",
+    "category": "armor",
+    "name": { "str_sp": "scales" },
+    "description": "Your scales have grown thicker and cover most of your body, providing solid armor.",
+    "weight": "1 kg",
+    "volume": "900 ml",
+    "price": 0,
+    "price_postapoc": 0,
+    "material": [ "flesh", "mut_scales" ],
+    "symbol": "x",
+    "color": "light_red",
+    "warmth": 2,
+    "environmental_protection": 2,
+    "flags": [ "INTEGRATED", "ALLOWS_NATURAL_ATTACKS", "UNBREAKABLE", "SKINTIGHT", "WATER_FRIENDLY", "TOUGH_FEET" ],
+    "armor": [
+      {
+        "material": [
+          { "type": "flesh", "covered_by_mat": 100, "thickness": 1.0 },
+          { "type": "mut_scales", "covered_by_mat": 85, "thickness": 2.0 }
+        ],
+        "covers": [ "head" ],
+        "coverage": 100,
+        "encumbrance": 1,
+        "breathability": "POOR"
+      },
+      {
+        "material": [
+          { "type": "flesh", "covered_by_mat": 100, "thickness": 1.0 },
+          { "type": "mut_scales", "covered_by_mat": 90, "thickness": 2.0 }
+        ],
+        "covers": [ "torso", "arm_l", "arm_r", "leg_l", "leg_r" ],
+        "coverage": 100,
+        "encumbrance": 2,
+        "breathability": "POOR"
+      },
+      {
+        "material": [
+          { "type": "flesh", "covered_by_mat": 100, "thickness": 1.0 },
+          { "type": "mut_scales", "covered_by_mat": 85, "thickness": 1.0 }
+        ],
+        "covers": [ "hand_l", "hand_r", "foot_l", "foot_r" ],
+        "coverage": 100,
+        "encumbrance": 1,
+        "breathability": "POOR"
+      },
+      {
+        "material": [
+          { "type": "flesh", "covered_by_mat": 100, "thickness": 1.0 },
+          { "type": "mut_scales", "covered_by_mat": 90, "thickness": 1.0 }
+        ],
+        "covers": [ "mouth" ],
+        "coverage": 90,
+        "encumbrance": 1,
+        "breathability": "POOR",
+        "layers": [ "PERSONAL" ]
       }
     ]
   },
@@ -843,44 +922,48 @@
     "volume": "1800 ml",
     "price": 0,
     "price_postapoc": 0,
-    "material": [ "flesh", "mut_bone", "chitin" ],
+    "material": [ "flesh", "mut_scales" ],
     "symbol": "x",
     "color": "light_red",
     "warmth": 3,
     "environmental_protection": 4,
-    "flags": [
-      "INTEGRATED",
-      "ALLOWS_NATURAL_ATTACKS",
-      "UNBREAKABLE",
-      "SKINTIGHT",
-      "WATER_FRIENDLY",
-      "PADDED",
-      "SOFT",
-      "TOUGH_FEET",
-      "NO_SALVAGE"
-    ],
+    "flags": [ "INTEGRATED", "ALLOWS_NATURAL_ATTACKS", "UNBREAKABLE", "SKINTIGHT", "WATER_FRIENDLY", "TOUGH_FEET" ],
     "armor": [
       {
         "material": [
-          { "type": "flesh", "covered_by_mat": 100, "thickness": 2.0 },
-          { "type": "bone", "covered_by_mat": 99, "thickness": 2.0 },
-          { "type": "chitin", "covered_by_mat": 99, "thickness": 2.0 }
+          { "type": "flesh", "covered_by_mat": 100, "thickness": 1.5 },
+          { "type": "mut_scales", "covered_by_mat": 95, "thickness": 2.5 }
         ],
-        "covers": [ "hand_l", "hand_r", "foot_l", "foot_r", "leg_l", "leg_r", "arm_l", "arm_r", "torso", "head" ],
+        "covers": [ "head" ],
         "coverage": 100,
-        "encumbrance": 3,
-        "breathability": "POOR"
+        "encumbrance": 3
       },
       {
         "material": [
-          { "type": "flesh", "covered_by_mat": 100, "thickness": 2.0 },
-          { "type": "bone", "covered_by_mat": 75, "thickness": 2.0 },
-          { "type": "chitin", "covered_by_mat": 75, "thickness": 2.0 }
+          { "type": "flesh", "covered_by_mat": 100, "thickness": 1.5 },
+          { "type": "mut_scales", "covered_by_mat": 95, "thickness": 2.5 }
+        ],
+        "covers": [ "torso", "arm_l", "arm_r", "leg_l", "leg_r" ],
+        "coverage": 100,
+        "encumbrance": 3
+      },
+      {
+        "material": [
+          { "type": "flesh", "covered_by_mat": 100, "thickness": 1.5 },
+          { "type": "mut_scales", "covered_by_mat": 95, "thickness": 2.0 }
+        ],
+        "covers": [ "hand_l", "hand_r", "foot_l", "foot_r" ],
+        "coverage": 100,
+        "encumbrance": 3
+      },
+      {
+        "material": [
+          { "type": "flesh", "covered_by_mat": 100, "thickness": 1.5 },
+          { "type": "mut_scales", "covered_by_mat": 95, "thickness": 2.0 }
         ],
         "covers": [ "mouth" ],
         "coverage": 100,
-        "encumbrance": 0,
-        "breathability": "POOR"
+        "encumbrance": 2
       }
     ]
   },
@@ -894,37 +977,69 @@
     "volume": "3600 ml",
     "price": 0,
     "price_postapoc": 0,
-    "material": [ "leather", "flesh", "mut_bone", "chitin" ],
+    "material": [ "leather", "mut_scales", "mut_bone" ],
     "symbol": "x",
     "color": "light_red",
     "warmth": 5,
-    "environmental_protection": 3,
-    "flags": [ "INTEGRATED", "ALLOWS_NATURAL_ATTACKS", "UNBREAKABLE", "NORMAL", "WATER_FRIENDLY", "PADDED", "SOFT", "NO_SALVAGE" ],
+    "environmental_protection": 4,
+    "flags": [
+      "INTEGRATED",
+      "ALLOWS_NATURAL_ATTACKS",
+      "UNBREAKABLE",
+      "SKINTIGHT",
+      "WATER_FRIENDLY",
+      "PADDED",
+      "TOUGH_FEET",
+      "NO_SALVAGE"
+    ],
     "armor": [
       {
         "material": [
-          { "type": "leather", "covered_by_mat": 100, "thickness": 2.5 },
-          { "type": "flesh", "covered_by_mat": 100, "thickness": 0.5 },
-          { "type": "bone", "covered_by_mat": 95, "thickness": 4.0 },
-          { "type": "chitin", "covered_by_mat": 95, "thickness": 4.0 }
+          { "type": "leather", "covered_by_mat": 100, "thickness": 2.0 },
+          { "type": "mut_scales", "covered_by_mat": 87, "thickness": 5.0 }
         ],
-        "covers": [ "hand_l", "hand_r", "foot_l", "foot_r", "leg_l", "leg_r", "arm_l", "arm_r", "torso", "head" ],
+        "covers": [ "head" ],
+        "coverage": 100,
+        "encumbrance": 6
+      },
+      {
+        "material": [
+          { "type": "leather", "covered_by_mat": 100, "thickness": 2.0 },
+          { "type": "mut_scales", "covered_by_mat": 95, "thickness": 6.0 }
+        ],
+        "covers": [ "torso" ],
+        "coverage": 100,
+        "encumbrance": 5
+      },
+      {
+        "//": "mut_bone represents the scutes",
+        "material": [
+          { "type": "leather", "covered_by_mat": 100, "thickness": 2.0 },
+          { "type": "mut_scales", "covered_by_mat": 91, "thickness": 6.0 },
+          { "type": "mut_bone", "covered_by_mat": 82, "thickness": 4.0 }
+        ],
+        "covers": [ "arm_l", "arm_r", "leg_l", "leg_r" ],
         "coverage": 100,
         "encumbrance": 8,
-        "breathability": "POOR"
+        "layers": [ "NORMAL" ]
       },
       {
         "material": [
           { "type": "leather", "covered_by_mat": 100, "thickness": 2.0 },
-          { "type": "flesh", "covered_by_mat": 100, "thickness": 0.5 },
-          { "type": "bone", "covered_by_mat": 60, "thickness": 4.0 },
-          { "type": "chitin", "covered_by_mat": 60, "thickness": 4.0 }
+          { "type": "mut_scales", "covered_by_mat": 85, "thickness": 4.0 }
+        ],
+        "covers": [ "hand_l", "hand_r", "foot_l", "foot_r" ],
+        "coverage": 100,
+        "encumbrance": 6
+      },
+      {
+        "material": [
+          { "type": "leather", "covered_by_mat": 100, "thickness": 2.0 },
+          { "type": "mut_scales", "covered_by_mat": 85, "thickness": 4.0 }
         ],
         "covers": [ "mouth" ],
         "coverage": 100,
-        "encumbrance": 0,
-        "breathability": "POOR",
-        "layers": [ "SKINTIGHT" ]
+        "encumbrance": 2
       }
     ]
   },
diff --git a/data/json/materials.json b/data/json/materials.json
index afbd82d6837c8..2a34566a7581b 100644
--- a/data/json/materials.json
+++ b/data/json/materials.json
@@ -2664,5 +2664,28 @@
     ],
     "burn_products": [ [ "corpse_ash", 0.035 ] ],
     "resist": { "bash": 2, "cut": 3, "acid": 7, "heat": 1, "bullet": 1 }
+  },
+  {
+    "type": "material",
+    "id": "mut_scales",
+    "name": "Mutant Scales",
+    "density": 1.2,
+    "specific_heat_liquid": 1.2,
+    "specific_heat_solid": 1.2,
+    "latent_heat": 200,
+    "chip_resist": 8,
+    "wind_resist": 75,
+    "dmg_adj": [ "scratched", "cut", "cracked", "shattered" ],
+    "bash_dmg_verb": "cracked",
+    "cut_dmg_verb": "chipped",
+    "vitamins": [ [ "calcium", 2 ] ],
+    "burn_data": [
+      { "fuel": 0, "smoke": 0, "burn": 0 },
+      { "fuel": 0, "smoke": 1, "burn": 1, "volume_per_turn": "250 ml" },
+      { "fuel": 1, "smoke": 1, "burn": 2 }
+    ],
+    "soft": true,
+    "burn_products": [ [ "corpse_ash", 0.035 ] ],
+    "resist": { "bash": 2.2, "cut": 3.5, "acid": 7, "heat": 1, "bullet": 1.4 }
   }
 ]
diff --git a/data/json/mutations/mutations.json b/data/json/mutations/mutations.json
index 73f73ff0fd8c6..50bdf9bb50f80 100644
--- a/data/json/mutations/mutations.json
+++ b/data/json/mutations/mutations.json
@@ -1922,7 +1922,7 @@
     "ugliness": 1,
     "description": "Your skin is slightly rough.  This has no gameplay effect.",
     "types": [ "SKIN" ],
-    "changes_to": [ "SCALES", "FEATHERS", "LIGHTFUR", "CHITIN", "PLANTSKIN", "PATCHSKIN1" ],
+    "changes_to": [ "SPARSE_SCALES", "FEATHERS", "LIGHTFUR", "CHITIN", "PLANTSKIN", "PATCHSKIN1" ],
     "category": [
       "LIZARD",
       "RAPTOR",
@@ -2415,15 +2415,42 @@
   },
   {
     "type": "mutation",
-    "id": "SCALES",
+    "id": "SPARSE_SCALES",
     "name": { "str": "Sparse Scales" },
     "points": 2,
+    "visibility": 5,
+    "ugliness": 1,
+    "description": "Your skin has toughened and grown thin, flexible scales in some places, acting as natural armor.",
+    "types": [ "SKIN" ],
+    "category": [ "RAPTOR", "LIZARD", "FISH" ],
+    "prereqs": [ "SKIN_ROUGH" ],
+    "changes_to": [ "SCALES" ],
+    "wet_protection": [
+      { "part": "head", "ignored": 2 },
+      { "part": "leg_l", "ignored": 5 },
+      { "part": "leg_r", "ignored": 5 },
+      { "part": "foot_l", "ignored": 2 },
+      { "part": "foot_r", "ignored": 2 },
+      { "part": "arm_l", "ignored": 4 },
+      { "part": "arm_r", "ignored": 4 },
+      { "part": "hand_l", "ignored": 1 },
+      { "part": "hand_r", "ignored": 1 },
+      { "part": "torso", "ignored": 10 }
+    ],
+    "armor": [ { "part_types": [ "tail" ], "cut": 2, "bash": 1 } ],
+    "integrated_armor": [ "integrated_sparse_scales" ]
+  },
+  {
+    "type": "mutation",
+    "id": "SCALES",
+    "name": { "str": "Scales" },
+    "points": 2,
     "visibility": 10,
     "ugliness": 3,
-    "description": "Your skin has toughened and grown thin, flexible scales in some places, acting as natural armor.  Somewhat reduces wet effects.",
+    "description": "Your skin has toughened further and your scales have grown to cover most of your body.  Somewhat reduces wet effects.",
     "types": [ "SKIN" ],
     "category": [ "RAPTOR", "LIZARD", "FISH" ],
-    "prereqs": [ "SKIN_ROUGH" ],
+    "prereqs": [ "SPARSE_SCALES" ],
     "changes_to": [ "THICK_SCALES", "SLEEK_SCALES" ],
     "wet_protection": [
       { "part": "head", "ignored": 2 },
@@ -2437,7 +2464,7 @@
       { "part": "hand_r", "ignored": 1 },
       { "part": "torso", "ignored": 10 }
     ],
-    "armor": [ { "part_types": [ "tail" ], "cut": 2, "bash": 2 } ],
+    "armor": [ { "part_types": [ "tail" ], "cut": 7, "bash": 4 } ],
     "integrated_armor": [ "integrated_scales" ]
   },
   {
@@ -2448,7 +2475,7 @@
     "visibility": 10,
     "ugliness": 4,
     "mixed_effect": true,
-    "description": "Your skin has grown thick and leathery and a set of heavy green scales has grown to cover most of your body, acting as natural armor.  While difficult to penetrate, it also limits your flexibility.  Greatly reduces wet effects.",
+    "description": "Your skin has grown thick and leathery and a set of heavy green scales has grown to cover most of your body, acting as natural armor.  Further, bony scutes cover your extremities, offering additional protection there.  While difficult to penetrate, it also limits your flexibility.  Greatly reduces wet effects.",
     "types": [ "SKIN" ],
     "prereqs": [ "SCALES" ],
     "threshreq": [ "THRESH_LIZARD" ],
@@ -2480,6 +2507,7 @@
     "prereqs": [ "SCALES" ],
     "category": [ "FISH" ],
     "movecost_swim_modifier": 0.75,
+    "threshreq": [ "THRESH_FISH" ],
     "wet_protection": [
       { "part": "head", "good": 7 },
       { "part": "leg_l", "good": 21 },
diff --git a/data/mods/DinoMod/mutations/mutations.json b/data/mods/DinoMod/mutations/mutations.json
index 9beb8eeb7cebf..98dec81b8addd 100644
--- a/data/mods/DinoMod/mutations/mutations.json
+++ b/data/mods/DinoMod/mutations/mutations.json
@@ -257,6 +257,12 @@
     "copy-from": "LIZ_IR",
     "extend": { "category": [ "STEGO", "TYRANT" ] }
   },
+  {
+    "type": "mutation",
+    "id": "SPARSE_SCALES",
+    "copy-from": "SPARSE_SCALES",
+    "extend": { "category": [ "STEGO", "TYRANT", "HORNS" ] }
+  },
   {
     "type": "mutation",
     "id": "SCALES",
diff --git a/data/mods/Magiclysm/mutations/mutations.json b/data/mods/Magiclysm/mutations/mutations.json
index 5f5702bb15fa7..68414bcd72a3d 100644
--- a/data/mods/Magiclysm/mutations/mutations.json
+++ b/data/mods/Magiclysm/mutations/mutations.json
@@ -100,6 +100,12 @@
     "copy-from": "SKIN_ROUGH",
     "extend": { "category": [ "DRAGON_BLACK" ] }
   },
+  {
+    "type": "mutation",
+    "id": "SPARSE_SCALES",
+    "copy-from": "SPARSE_SCALES",
+    "extend": { "category": [ "DRAGON_BLACK" ] }
+  },
   {
     "type": "mutation",
     "id": "SCALES",
diff --git a/tools/spell_checker/dictionary.txt b/tools/spell_checker/dictionary.txt
index f3ad5ff5afc19..00cc3cae4506d 100644
--- a/tools/spell_checker/dictionary.txt
+++ b/tools/spell_checker/dictionary.txt
@@ -2476,6 +2476,8 @@ scrrrash
 scruffs
 scutcher
 scutellosaurus
+scute
+scutes
 scuttles
 sealab
 sealable