Table 6. Number of putative species delimited by the different species delimitation methods applied to the COI dataset: overall barcoding gap analysis (OGA), pairwise gap analysis (PGA), 3% threshold, stylommatophoran 4% threshold, 10× rule, 3.2–4.1× rule, ABGD method, SDP (Rosenberg’s P_AB and Rodrigo’s P(RD)), GSI with both BI and ML trees and GMYC method.

	Classical barcoding gap analysis						ABGD	SDP				GSI		GMYC
Putative species								PAB		P(RD)
	OGA	PGA	3%	4%	10×	3.2–4.1×		BI	ML	BI	ML	BI	ML	BI
A	+	+	+	+	−	+	+	+	−	+	−	+	+	+
B	na	na	na	na	na	na	na	na	na	na	na	na	na	na
C	+	+	+	+	+	+	+	+	+	+	+	+	+	+
D	−	− (B)	−	−	−	−		na	+	na	−	−	+	−
Da *	+	+	+	+	+	+	+	−	−	+	+	+	+	+
Db *	+	+	−	+	−	+	+	−	−	−	−	+	+	+
E	−	− (F)	−	−	−	−		+	+	−	−	−	−
Ea	−	− (F)	−	−	−	−	−					−	−	−
Eb	+	+	−	−	−	−	+	−	−	+	−	+	+	−
Ea3-4 *	+	+	+	+	+	+	+	−	−	+	+	+	+	+
Eb1-4 *	+	+	+	+	+	+	−	−	−	+	+	+	+	+
Eb5-8 *	+	+	+	+	−	+	−	−	−	+	+	+	+	+
F	−	− (Ea)	−	+	−	−	−					−	−	−
F+Ea1-2 *	+	+	+	+	+	+	+	+	+	+	+	+	+	+
R. saharica (S)	+	+	−	+	−	+		+	+	−	−	+	+	−
Sa	+	+	+	+	+	+	+	−	−	+	+	+	+	+
Sb	+	+	+	+	+	+	+	−	−	+	+	+	+	+
Species within R. decollata	7 or 8	7 or 8	7	8	5	8	7	4	4	6 or 7	6	7 or 8	6 or 8	8
Species within R. saharica	1 or 2	1 or 2	2	1 or 2	2	1 or 2	2	1	1	2	2	1 or 2	1 or 2	2
Species within Rumina	8 or 10	9 or 10	9	9 or 10	7	9 or 10	9	5	5	8 or 9	8	8 or 10	7 or 10	10

+: MOTU supported as a putative species;

−: no support as a putative species; empty cases: group is not suggested or cannot be analyzed by the method; parentheses: MOTU responsible for the absence of barcoding gap;

^*: additional MOTU defined by the COI data.