This data was graphically deduced from Fig. 25-3a of T. Sarna, HM Swartz, The physical properties of melanins, in "The Pigmentary System", ed. JJ Nordlund et al., Oxford University Press, 1988, which was a line drawing. They cite as the source of the data:

• T Sarna, RC Sealy, Photoinduced oxygen consumption in melanin systems. Action spectra and quantum Yields for eumelanin and synthetic melanin. Photochem. Photobiol. 39:69-74, 1984.
• RP Crippa, V Cristofoletti, N Romeo, A band model for melanin deduced from optical absorption and photoconductivity experiments. Biochim. Biophys. Acta 538:164-170, 1978.

wavelength [nm]
ext #1 = extinction coefficient [cm^-1 (mg/ml)^-1]
ext #2 = extinction coefficient [cm^-1 (moles/liter)^-1]

nm    	ext #1	ext #2
213.54	47.193	13922
217.92	46.140	13611
222.25	44.738	13198
226.55	43.161	12732
228.59	41.586	12268
232.91	40.183	11854
234.95	38.608	11389
241.54	37.204	10975
243.61	35.803	10562
247.96	34.576	10200
250.18	34.224	10096
256.82	33.170	9785.1
263.41	31.765	9370.7
270.05	30.711	9059.7
276.71	29.831	8800.1
285.60	28.599	8436.7
292.24	27.545	8125.8
298.88	26.490	7814.5
303.26	25.437	7503.9
312.08	23.856	7037.5
323.18	22.273	6570.5
334.25	20.516	6052.2
343.05	18.760	5534.2
351.88	17.179	5067.8
360.76	15.947	4704.4
376.38	14.361	4236.5
387.50	12.952	3820.8
403.20	11.890	3507.6
418.85	10.478	3091.0
430.04	9.5940	2830.2
443.45	8.3590	2465.9
459.17	7.4720	2204.2
481.61	6.0540	1785.9
501.83	4.9880	1471.5
524.32	3.9190	1156.1
549.09	3.0240	892.08
591.91	1.5890	468.76
600.98	1.7560	518.02
625.84	1.3850	408.58
652.98	1.1870	350.17
675.59	0.99300	292.93
700.47	0.79700	235.11
720.81	0.60500	178.48
750.22	0.40500	119.47
770.62	0.56200	165.79
786.44	0.37400	110.33
802.28	0.36100	106.50
820.37	0.17000	50.150
829.42	0.16300	48.085