Table 1.

Holotype dimensions, and mean, maximum (max), minimum (min), and standard deviation (sd) of shell measurements (see Figure 1) of four populations of Zospeum vasconicum sp. n.: Cueva de la Ermita de Sandaili, N=20; Cueva de Otxas, N=11; Cueva Silibranka-2, N=10; Cueva del Cranéo, N=11. SH – shell height, SW – shell width, HLW – height of last whorl, PH – peristome height, PD – peristome diameter, SA – spire angle, W – number of whorls, CT– coiling tightness. SA in degrees, other measurements in mm.

Sandaili	SH	SW	HLW	PH	PD	SA	W	H/D	HLW/H	PH/H	CT	PH/PW
holotype	1.20	0.83	0.77	0.43	0.43	59	4.7	1.45	0.64	0.36	25.78	1.0
mean	1.23	0.84	0.76	0.46	0.46	58	4.95	1.47	0.62	0.37	25.59	1.0
max	1.45	0.92	0.85	0.51	0.53	65	5.5	1.58	0.65	0.41	42.35	1.11
min	1.12	0.77	0.67	0.4	0.4	52	4.6	1.34	0.55	0.34	14.80	0.87
sd	0.07	0.046	0.041	0.035	0.030	3.68	0.228	0.072	0.027	0.023	6.31	0.068
Silibranka
mean	1.29	0.81	0.73	0.45	0.43	56.3	5.55	1.59	0.57	0.35	22.42	1.04
max	1.38	0.86	0.76	0.51	0.46	60	6	1.71	0.58	0.38	27.10	1.13
min	1.23	0.75	0.67	0.41	0.40	49	5.25	1.52	0.54	0.33	18.71	0.99
sd	0.048	0.033	0.029	0.029	0.018	3.335	0.194	0.054	0.016	0.016	3.068	0.044
Otxas
mean	1.29	0.80	0.74	0.44	0.45	58.5	5.29	1.61	0.58	0.34	21.04	0.98
max	1.36	0.85	0.82	0.48	0.49	65	5.6	1.70	0.60	0.37	24.44	1.05
min	1.24	0.74	0.68	0.40	0.42	54	5	1.46	0.54	0.32	17.44	0.933
sd	0.046	0.037	0.038	0.025	0.024	3.725	0.194	0.078	0.024	0.017	2.608	0.032
Cranéo
mean	1.24	0.87	0.80	0.52	0.50	63.1	4.97	1.41	0.64	0.42	23.59	1.05
max	1.28	0.9	0.88	0.62	0.55	68	5	1.48	0.69	0.48	26.23	1.15
min	1.21	0.84	0.75	0.44	0.46	61	4.85	1.38	0.61	0.35	20.25	0.90
sd	0.021	0.018	0.039	0.049	0.027	2.514	0.063	0.032	0.024	0.038	1.742	0.087