diff --git a/doc/fixes34.4 b/doc/fixes34.4
index ceccd9be4..b99520276 100644
--- a/doc/fixes34.4
+++ b/doc/fixes34.4
@@ -174,6 +174,7 @@ Call command could be used to remotely identify which high priest is which
 large amorphous, whirly, noncorporeal, or slithy creatures can fit through
 	tight diagonal gaps despite their size
 avoid "You summoned it!" for unseen monster produced by same-race offering
+recognize "mindflayer" as an alternative spelling for "mind flayer"
 
 
 Platform- and/or Interface-Specific Fixes
diff --git a/src/mondata.c b/src/mondata.c
index 9a219ac14..974087aae 100644
--- a/src/mondata.c
+++ b/src/mondata.c
@@ -517,6 +517,7 @@ const char *in_str;
 
 	if (!strncmp(str, "a ", 2)) str += 2;
 	else if (!strncmp(str, "an ", 3)) str += 3;
+	else if (!strncmp(str, "the ", 4)) str += 4;
 
 	slen = strlen(str);
 	term = str + slen;
@@ -542,6 +543,14 @@ const char *in_str;
 		{ "grey unicorn",	PM_GRAY_UNICORN },
 		{ "grey ooze",		PM_GRAY_OOZE },
 		{ "gray-elf",		PM_GREY_ELF },
+		{ "mindflayer",		PM_MIND_FLAYER },
+		{ "master mindflayer",	PM_MASTER_MIND_FLAYER },
+	    /* Inappropriate singularization by -ves check above */
+		{ "master of thief",	PM_MASTER_OF_THIEVES },
+	    /* Potential misspellings where we want to avoid falling back
+	       to the rank title prefix (input has been singularized) */
+		{ "master thief",	PM_MASTER_OF_THIEVES },
+		{ "master of assassin",	PM_MASTER_ASSASSIN },
 	    /* Hyphenated names */
 		{ "ki rin",		PM_KI_RIN },
 		{ "uruk hai",		PM_URUK_HAI },
@@ -568,8 +577,6 @@ const char *in_str;
 		{ "djinn",		PM_DJINNI },
 		{ "mumakil",		PM_MUMAK },
 		{ "erinyes",		PM_ERINYS },
-	    /* falsely caught by -ves check above */
-		{ "master of thief",	PM_MASTER_OF_THIEVES },
 	    /* end of list */
 		{ 0, 0 }
 	};