This is supposed to be the exhaustive list of appearances, variant covers, and mentions. So if there is something less obvious missing please let me know. It will be a while until I even get all the standard stuff on… but I am working on it.

For reference – http://www.comics.org

Last updated; March 20, 2008

Uncanny X-Men
X-Men
Astonishing X-Men
Classic X-Men
Marvel Comics Presents
Marvel Tales
The Last Defenders

Classic X-Men [1986]
#	5		TBC
#	7		TBC
#	15		TBC
#	21		TBC
#	25		TBC
#	27		TBC
#	29		TBC
#	30		TBC
#	34		TBC
#	35		TBC
#	41		TBC
Colossus [1997]
#	1		[C]
Colossus: Bloodline [2005]
#	1		[C]	November 2005
#	2		[C]	December 2005
#	3		[C]	January 2006
#	4		[C]	February 2006
#	5		[C]	March 2006
Excalibur [1988]
#	71		TBC
#	92		[C]
#	95		[C]
#	100		[C]
#	101		[C]
#	102		[C]
#	103		[C]
#	104		[C]
#	106		[C]
#	107		[C]
#	109		[C]
#	112		[C]
#	113		[C]
#	115		[C]
#	116		[C]
#	117		[C]
#	122		[C]
Gambit [2004]
#	10		[C]
Giant-Size X-Men
#	1		[C]	1975
Last Defenders, The [2008]
#	1	Destiny Falls	[C] [S - Joins The Defenders]	May 2008
New Mutants, The [1983]
#	46		[C]
#	73		[C]
Secret Wars [1984]
#	1		[C]
#	3		[C]
#	5		[C]
#	12		TBC
Uncanny X-Men [1981]
#	142		TBC
#	143		TBC
#	144		TBC
#	145		TBC
#	146		TBC
#	147		TBC
#	148		TBC
#	149		TBC
#	150		TBC
#	151		TBC
#	152		TBC
#	153		TBC
#	154		TBC
#	155		TBC
#	156		TBC
#	157		TBC
#	158		TBC
#	159		TBC
#	160		TBC
#	161		TBC
#	162		TBC
#	163		TBC
#	164		TBC
#	165		TBC
#	166		TBC
#	167		TBC
#	168		TBC
#	169		TBC
#	170		TBC
#	171		TBC
#	172		TBC
#	173		TBC
#	174		TBC
#	175		TBC
#	176		TBC
#	177		TBC
#	178		TBC
#	179		TBC
#	180		TBC
#	181		TBC
#	182		TBC
#	183	He’ll Never Make Me Cry	[C]	July 1984
#	184		TBC
#	185		TBC
#	186		TBC
#	187	Wraithkill	TBC	November 1984
#	188	Legacy Of The Ghost	TBC	December 1984
#	189		TBC
#	190		TBC
#	191		TBC
#	192		TBC
#	193		TBC
#	194		TBC
#	195		TBC
#	196		TBC
#	197		TBC
#	198		TBC
#	199		TBC
#	200		TBC
#	201		TBC
#	202		TBC
#	203		TBC
#	204		TBC
#	205		TBC
#	206		TBC
#	207		TBC
#	208		TBC
#	209		TBC
#	210		TBC
#	211	Massacre	TBC	November 1986
#	212		TBC
#	213		TBC
#	214		TBC
#	215		TBC
#	216		TBC
#	217		TBC
#	218		TBC
#	219		TBC
#	220		TBC
#	221		TBC
#	222		TBC
#	223		TBC
#	224		TBC
#	225		TBC
#	226		TBC
#	227		TBC
#	228		TBC
#	229		TBC
#	230		TBC
#	231		TBC
#	232		TBC
#	233		TBC
#	234		TBC
#	235	Welcome To Genosha…A Green And Pleasant Land	TBC	Early October 1988
#	236		TBC
#	237		TBC
#	238		TBC
#	239		TBC
#	240		TBC
#	241		TBC
#	242		TBC
#	243		TBC
#	244		TBC
#	245		TBC
#	246		TBC
#	247		TBC
#	248	The Cradle Will Fall!	[C]	Early September 1989
#	249		TBC
#	250		TBC
#	251		TBC
#	252		TBC
#	253		TBC
#	254		TBC
#	255		TBC
#	256		TBC
#	257		TBC
#	258		TBC
#	259	Dream A Little Dream	[C]	March 1990
#	260	Star 90	TBC	April 1990
#	261	Harriers Hunt	TBC	May 1990
#	262	Scary Monsters	TBC	June 1990
#	263		TBC
#	264	Hot Pursuit	TBC	Late July 1990
#	265	Storm	TBC	Early August 1990
#	266	Gambit: Out Of The Frying Pan	TBC	Late August 1990
#	267	Nanny Into the Fire	TBC	Early September 1990
#	268	Madripoor Knights	TBC	Late September 1990
#	269	Rogue Redux	TBC	October 1990
#	270	X-Tinction Agenda (Part 1)	TBC	November 1990
#	271	X-Tinction Agenda (Part 4)	TBC	December 1990
#	272	X-Tinction Agenda (Part 7)	TBC	January 1991
#	273		TBC
#	274		TBC
#	275		TBC
#	276		TBC
#	277		TBC
#	278		TBC
#	279		[C]
#	280		[C]
#	281		[C]
#	282		TBC
#	283		TBC
#	284		TBC
#	285		TBC
#	286		[C]
#	287		TBC
#	288		TBC
#	289		TBC
#	290		TBC
#	291		TBC
#	292		[C]
#	293		[C]
#	294		TBC
#	295		[C]
#	296		TBC
#	297		TBC
#	298		TBC
#	299		[C]
#	300		TBC
#	301		TBC
#	302		[C]
#	303		TBC
#	304		TBC
#	305		TBC
#	306		TBC
#	307		TBC
#	308		TBC
#	309		TBC
#	310		TBC
#	311		TBC
#	312		TBC
#	313		TBC
#	314		TBC
#	315		TBC
#	316		TBC
#	317		TBC
#	318		TBC
#	319		TBC
#	320		TBC
#	321		TBC
#	322		TBC
#	323		TBC
#	324		TBC
#	325		TBC
#	326		TBC
#	327		TBC
#	328		TBC
#	329		TBC
#	330		TBC
#	331		TBC
#	332		TBC
#	333		TBC
#	334		TBC
#	335		TBC
#	336		TBC
#	337		TBC
#	338		TBC
#	339		TBC
#	340		TBC
#	341		TBC
#	342		TBC
#	343		TBC
#	344		TBC
#	345		TBC
#	346		TBC
#	347		TBC
#	348		TBC
#	349		TBC
#	350		TBC
#	351		TBC
#	352		TBC
#	353		TBC
#	354		TBC
#	355		TBC
#	356		TBC
#	357		TBC
#	358		TBC
#	359		TBC
#	360		TBC
#	361		TBC
#	362		TBC
#	363		TBC
#	364		TBC
#	365		[C]
#	366		TBC
#	367		TBC
#	368		TBC
#	369		TBC
#	370		TBC
#	371		TBC
#	372		[C]
#	373		[C]
#	374		[C]
#	375		TBC
#	376		TBC
#	377		TBC
#	378		TBC
#	379		TBC
#	380		TBC
#	381		TBC
#	382		TBC
#	383		TBC
#	384		TBC
#	385		[C]
#	386		TBC
#	387		TBC
#	388		TBC
#	389		TBC
#	390		[C]
#	492		[C]
#	493		TBC
#	494		TBC
#	495		[C]
#	496		[C]
World War Hulk – X-Men [2007]
#	1		TBC
#	2		TBC
#	3		[C]
X-Men [1963]
#	94		[C]	August 1975
#	95		[C]	October 1975
#	96		[C]	December 1975
#	97		[C]	February 1976
#	98		[C]	April 1976
#	99		[C]	June 1976
#	100		[C]	August 1976
#	101		TBC
#	102		TBC
#	103		TBC
#	104		TBC
#	105		TBC
#	106		TBC
#	107		TBC
#	108		TBC
#	109		TBC
#	110		TBC
#	111		TBC
#	112		TBC
#	113		TBC
#	114		TBC
#	115		TBC
#	116		TBC
#	117		TBC
#	118		TBC
#	119		TBC
#	120		TBC
#	121		TBC
#	122		TBC
#	123		TBC
#	124		TBC
#	125		TBC
#	126		TBC
#	127		TBC
#	128		TBC
#	129		TBC	January 1980
#	130		TBC	February 1980
#	131		TBC	March 1980
#	132		TBC	April 1980
#	133		TBC	May 1980
#	134		TBC	June 1980
#	135		TBC	July 1980
#	136		TBC	August 1980
#	137		TBC	September 1980
#	138		TBC	October 1980
#	139		TBC	November 1980
#	140		TBC	December 1980
#	141		TBC	January 1981
X-Men [1991]
#	1	Rubicon	[C] Cover B	October 1991
#	1	Rubicon	[C] Cover E	October 1991
#	2	Firestorm	TBC	November 1991
#	3	Fallout	TBC	December 1991
#	4	The Resurrection And The Flesh	TBC	January 1992
#	5	BlowBack	TBC	February 1992
#	6	Farther Still	TBC	March 1992
#	7	Inside… Out	TBC	April 1992
#	8	Tooth And Claw	TBC	May 1992
#	9	The Not So Big Easy	TBC	June 1992
#	10	Where The Happy Little Bluebirds Fly	TBC	July 1992
#	11	The X-Men Vs The X-Men (Again)	TBC	August 1992
#	12	Broken Mirrors	TBC	September 1992
#	13	Hazardous Territory	TBC	October 1992
#	14	X-cutioners Song (Part 3) – Fingers On The Trigger	TBC	November 1992
#	15	X-cutioners Song (Part 7) – The Camel’s Back	TBC	December 1992
#	16	X-cutioners Song (Part 11) – Conflicting Cathexes	TBC	January 1993
#	17	A Skinning Of Souls	TBC	February 1993
#	18		TBC
#	19		TBC
#	20		TBC
#	21		TBC
#	22		TBC
#	23		TBC
#	24		TBC
#	25		TBC
#	26		TBC
#	27		TBC
#	28		TBC
#	29		TBC
#	30		TBC
#	31		TBC
#	32		TBC
#	33		TBC
#	34		TBC
#	35		TBC
#	36		TBC
#	37		TBC
#	38		TBC
#	39		TBC
#	40		TBC
#	41		TBC
#	42		TBC
#	43		TBC
#	44		TBC
#	45		TBC
#	46		TBC
#	47		TBC
#	48		TBC
#	49		TBC
#	50		TBC
#	51		TBC
#	52		TBC
#	53		TBC
#	54		TBC
#	55		TBC
#	56		TBC
#	57		TBC
#	58		TBC
#	59		TBC
#	60		TBC
#	61		TBC
#	62		TBC
#	63		TBC
#	64		TBC
#	65		TBC
#	66		TBC
#	67		TBC
#	68		TBC
#	69		TBC
#	70		TBC
#	71		TBC
#	72		TBC
#	73		TBC
#	74		TBC
#	75		TBC
#	76		TBC
#	77		TBC
#	78		TBC
#	79		TBC
#	80		TBC
#	81		TBC
#	82		TBC
#	83		TBC
#	84		TBC
#	85		TBC
#	86		TBC
#	87		TBC
#	88		TBC
#	89		TBC
#	90		TBC
#	91		TBC
#	92		TBC
#	93		TBC
#	94		TBC
#	95		TBC
#	96		TBC
#	97		TBC
#	98		TBC
#	99		TBC
#	100		TBC
#	101		TBC
#	102		TBC
#	103		TBC
#	104		TBC
#	105		TBC
#	106		TBC
#	107		TBC
#	108		TBC
#	109		TBC
#	110		TBC
#	111		TBC
#	112		TBC
#	113		TBC
#	114		TBC
X-Men Annual [1970]
#	4		[C]
#	5		[C]
#	6		[C]
#	7		[C]
#	8		[C]
#	9		[C]
#	10		[C]
#	12/td>		[C]
X-Men: Deadly Genesis [2006]
#	1		[C]	January 2006
#	2		[C]	February 2006
#	3		[C]	March 2006
#	4		[C]	April 2006
#	5		[C]	May 2006
#	6		[C]	June 2006
X-Men: Liberators [1998]
#	1		[C]
#	2		[C]
#	3		[C]
#	4		[C]
X-Men: Phoenix Warsong [1998]
#	1		[C]
X-Men: Unlimited [1993]
#	23	Lessons	[C]	June 1999
#	25	In Remembrance	[C]	December 1999
#	27		[C]	June 2000
#	30		[C]	January 2001
#	38		[C]	November 2002
X-Men: Unlimited [2004]
#	13		[C]	April 2006
#	14		[C]	June 2006

And there’s more;

Graphic Novels & Misc
Colossus: God’s Country			[C]
Wizard Special: Jim Lee Millennium Edition
Wizard Special: Marc Silvestri Millennium Edition