diff --git a/dlls/barnacle.cpp b/dlls/barnacle.cpp
index ecc1f5d4..4898ddb8 100644
--- a/dlls/barnacle.cpp
+++ b/dlls/barnacle.cpp
@@ -67,6 +67,7 @@ public:
 };
 
 LINK_ENTITY_TO_CLASS( monster_barnacle, CBarnacle )
+LINK_ENTITY_TO_CLASS( monster_xarnacle, CBarnacle )
 
 TYPEDESCRIPTION	CBarnacle::m_SaveData[] =
 {
diff --git a/dlls/ichthyosaur.cpp b/dlls/ichthyosaur.cpp
index 36c35853..06fcd7bc 100644
--- a/dlls/ichthyosaur.cpp
+++ b/dlls/ichthyosaur.cpp
@@ -122,6 +122,7 @@ public:
 };
 
 LINK_ENTITY_TO_CLASS( monster_ichthyosaur, CIchthyosaur )
+LINK_ENTITY_TO_CLASS( monster_hchthyosaur, CIchthyosaur )
 LINK_ENTITY_TO_CLASS( monster_baby_ichthyosaur, CIchthyosaur )
 
 TYPEDESCRIPTION	CIchthyosaur::m_SaveData[] =
diff --git a/dlls/leech.cpp b/dlls/leech.cpp
index 1d64eae1..ca588128 100644
--- a/dlls/leech.cpp
+++ b/dlls/leech.cpp
@@ -134,6 +134,7 @@ private:
 };
 
 LINK_ENTITY_TO_CLASS( monster_leech, CLeech )
+LINK_ENTITY_TO_CLASS( monster_piranha, CLeech )
 
 TYPEDESCRIPTION	CLeech::m_SaveData[] =
 {
diff --git a/dlls/squeakgrenade.cpp b/dlls/squeakgrenade.cpp
index bfe17ed1..b8dfd095 100644
--- a/dlls/squeakgrenade.cpp
+++ b/dlls/squeakgrenade.cpp
@@ -408,9 +408,11 @@ void CSqueakGrenade::SuperBounceTouch( CBaseEntity *pOther )
 #endif
 
 LINK_ENTITY_TO_CLASS( weapon_snark, CSqueak )
+LINK_ENTITY_TO_CLASS( weapon_znark, CSqueak )
 
 void CSqueak::Spawn()
 {
+	pev->classname = MAKE_STRING( "weapon_snark" ); // hack to allow for old names
 	Precache();
 	m_iId = WEAPON_SNARK;
 	SET_MODEL( ENT( pev ), "models/w_sqknest.mdl" );
diff --git a/dlls/tentacle.cpp b/dlls/tentacle.cpp
index 44b8b45b..fc0f006f 100644
--- a/dlls/tentacle.cpp
+++ b/dlls/tentacle.cpp
@@ -111,6 +111,7 @@ int CTentacle::g_fFlySound;
 int CTentacle::g_fSquirmSound;
 
 LINK_ENTITY_TO_CLASS( monster_tentacle, CTentacle )
+LINK_ENTITY_TO_CLASS( monster_hentacle, CTentacle )
 
 // stike sounds
 #define TE_NONE -1