记泥河湾盆地晚上新世—早更新世䶄亚科(Arvicolinae)和鼢鼠亚科(Myospalacinae)五新种

郑绍华, 张颖奇, 崔宁

Five new species of Arvicolinae and Myospalacinae from the Late Pliocene-Early Pleistocene of Nihewan Basin

ZHENG Shao-Hua, ZHANG Ying-Qi, CUI Ning

Table 2 E, Ea, Eb, HH-Index, PAA-Index, PA-Index, and length of molars of related Mimomys, Borsodia and Pitymys species* of China (min.|mean|max.,n) (mm)

Species	m1					m2		m3
Species	L	E	E_a	E_b	HH-Index	L	HH-Index	L	HH-Index
M. banchiaonicus	3.90\|3.90\|3.90, 1				na\|>3.76\|na, 1
M. bilikeensis	2.26\|2.46\|2.66, 30	0.32\|0.70\|1.00, 31	0.24\|0.50\|0.76, 31	0.08\|0.19\|0.36, 31	-0.08\|0.10\|0.25, 31	1.60\|1.71\|1.84, 16	-0.04\|0.10\|0.22, 16	1.28\|1.44\|1.60, 10	-0.09\|-0.16\|-0.20, 10
M. gansunicus	2.59\|2.74\|2.92, 15	na\|>3.33\|na, 1	na\|>3.20\|na, 1	na>3.17\|na,1	na\|>5.18\|na, 1
M. orientalis (Gaotege)	2.44\|2.87\|3.20, 14	2.00\|2.52\|2.84, 5	1.84\|2.45\|2.72, 5	0.96\|1.27\|1.48, 14	0.97\|1.27\|1.52, 14	1.60\|1.73\|1.92, 12	0.75\|0.97\|1.32, 12	1.44\|1.53\|1.56, 7	0.32\|0.43\|0.54, 7
M. orientalis (Danangou)	2.60\|2.73\|2.88, 26	1.00\|2.05\|2.48, 15	1.40\|1.87\|2.28, 15	0.80\|1.01\|1.24, 15	0.78\|1.16\|1.63, 26	1.68\|1.78\|1.88, 17	0.72\|0.94\|1.40, 17	1.40\|1.55\|1.72, 12	0.12\|0.37\|0.57, 12
M. orientalis (combined)	2.44\|2.78\|3.20, 40	1.00\|2.17\|2.84, 20	1.40\|2.02\|2.72, 20	0.80\|1.14\|1.48, 29	0.78\|1.20\|1.63, 40	1.60\|1.76\|1.92, 29	0.72\|0.95\|1.40, 29	1.40\|1.54\|1.72, 19	0.12\|0.39\|0.57, 19
M. nihewanensis sp. nov.	2.44\|2.80\|3.12, 51	1.32\|1.81\|2.40, 23	1.16\|1.63\|2.20, 23	0.08\|0.78\|1.40, 54	0.56\|0.81\|1.16, 51	1.52\|1.82\|2.12, 61	0.14\|0.67\|1.22, 61	1.24\|1.58\|1.76, 38	0.07\|0.27\|0.57, 38
M. peii	3.47\|3.64\|4.01, 7	na\|>5.30\|na,1	4.0\|4.32\|4.63, 2	2.25\|2.25\|2.25, 2	na\|>6.51\|na, 2
M. teilhardi	2.17\|2.55\|2.85, 102	0.40\|0.99\|1.64, 60	0.28\|0.92\|1.64, 60	0.14\|0.49\|1.12, 60	0.20\|0.46\|1.00, 62	1.52\|1.71\|1.88, 62	0.20\|0.40\|0.65, 62	1.28\|1.43\|1.56, 39	0.00\|0.12\|0.31, 39
M. youhenicus	2.61\|2.81\|3.00, 2	3.30\|3.30\|3.30, 1	2.95\|2.95\|2.95, 1	2.17\|2.35\|2.53, 2	3.06\|3.25\|3.44, 2
P. simplicidens sp. nov.	2.36\|2.36\|2.36, 1
B. mengensis	2.20\|2.38\|2.60, 5				0.50\|1.18\|1.61, 4	1.50\|1.60\|1.73, 4	0.58\|0.77\|0.89, 4	1.23\|1.27\|1.30, 2	0.26\|0.40\|0.53, 2
B. chinensis	2.32\|2.54\|2.80, 21				>4.74\|>5.35\|>6.63, 12	1.50\|1.51\|1.73, 8	>1.84\|>4.15\|>4.83, 8	1.37\|1.47\|1.57, 17	>2.11\|>3.08\|>3.84, 17
B. prechinensis sp. nov.	2.63\|2.63\|2.63, 1				na\|≥3.67\|na, 1	1.60\|1.60\|1.60, 1	na\|>3.62\|na, 1		1.84\|1.93\|2.01, 2
Species	M1					M2		M3
Species	L	PAA-Index	PA-Index			L	PA-Index	L	PA-Index
M. orientalis (Gaotege)	2.00\|2.38\|2.68, 24	0.79\|1.45\|2.09, 24	0.78\|1.38\|2.04, 24			1.52\|1.87\|2.12, 19	0.36\|0.73\|1.10, 19	1.64\|1.82\|2.08, 9	0.23\|0.36\|0.63, 9
M. orientalis (Danangou)	2.24\|2.45\|2.88, 40	1.09\|1.51\|1.84, 40	1.07\|1.43\|1.78, 40			1.72\|1.84\|2.04, 30	0.54\|0.86\|1.17, 30	1.56\|1.69\|1.88, 9	0.26\|0.50\|0.71, 9
M. orientalis (combined)	2.00\|2.42\|2.88, 64	0.79\|1.49\|2.09, 64	0.78\|1.41\|2.04, 64			1.52\|1.85\|2.12, 49	0.36\|0.81\|1.17, 49	1.56\|1.76\|2.08, 18	0.23\|0.43\|0.71, 18
M. nihewanensis sp. nov.	1.88\|2.45\|2.88, 69	0.60\|1.20\|1.84, 69	0.72\|1.17\|1.80, 69			1.56\|1.90\|2.08, 91	0.24\|0.65\|1.20, 91	1.52\|1.81\|2.12, 76	0.11\|0.39\|0.71, 79
B. mengensis	1.90\|2.04\|2.07, 4	0.69\|0.90\|1.15, 4	0.61\|0.67\|0.89, 4			1.73\|1.81\|1.90, 3	0.57\|0.67\|0.77, 2	1.37\|1.51\|1.83, 8	0.37\|0.55\|0.81, 8
B. chinensis	1.98\|2.16\|2.37, 20	>3.23\|>5.04\|>5.66, 20	>3.85\|>6.05\|>6.83, 20			1.63\|1.79\|1.87, 16	>2.69\|>4.90\|>6.25, 16	1.30\|1.46\|1.67, 8	>2.12\|>3.75\|>4.79, 8
B. prechinensis sp. nov.	2.03\|2.10\|2.17, 2	5.32\|5.42\|5.52, 2	4.57\|4.62\|4.67, 2			1.90\|1.90\|1.90, 1		1.67\|1.67\|1.67, 1	3.03\|3.03\|3.03, 1