Table 2 (continued on the next page). Morphological variability in Ophioderma hybrida sp. nov. from Monastir (MON) and Kelibia (KEL), Tunisia. The dorsal disc has been cut off (but is present) in KEL2, 6, 11. Catalogue numbers are from Swedish Museum of Natural History, Stockholm. SMNH-Type-9185 is the holotype, all specimens in SMNH-Type-9186 are paratypes. For simplicity, oral papillae are counted from Lyman’s ossicle to infradental. AS-n = number of arm spines; DAP-no = dorsal arm plate numbers; DAP-th = dorsal arm plate thickness; DC = dorsal colouration; DD = disc diameter; FieldID = field number, OPa = number of oral papillae; RS = radial shield covering; VC = ventral colouration.

Cat. no.	FieldID	DD [mm]	DAP-no	DAP-th	AS-n	OPa	RS	DC	VC
SMNH-Type-9187	MON15	9.8	1–2 joints with 2 pieces on 4 arms	flat	6	8–9	covered	olive green, reddish brown patches, white spots	olive, white spots
SMNH-Type-9187	MON16	14.7	proximal mosaic, to 30 joints	weakly tumid	8	6–7	covered	brown white variegated	greenish olive, white pattern
SMNH-Type-9187	MON17	10.9	single	flat	7	7–8	covered	greenish grey, white spots	as dorsal
SMNH-Type-9187	MON18	12.7	few pieces, within 12 joints	flat	7–9	8	covered	grey brown, white spots	as dorsal
SMNH-Type-9187	MON19	14.8	few pieces on 2 arms, to 10 joints	flat	7	9	covered	olive, white spots	as dorsal
SMNH-Type-9187	MON20	13.1	2 pieces on many joints up joint 21	flat	7	8	covered	brown white variegated	as dorsal
SMNH-Type-9187	MON21	14.2	multiple pieces, to 16 joints	flat	8	8	covered	brown, white pattern	light brown
SMNH-Type-9187	MON22	11.2	single	flat	7–8	9	naked	dark brown, white spots, white radial shields	dark brown
SMNH-Type-9186	KEL1	18.7	1–3 pieces on proximal arms	flat	8–10	8	covered	dark olive brown with red	as dorsal
SMNH-178454	KEL2	16.8	2 pieces on several of first 20 joints	flat	9	9	covered	olive, white spots	as dorsal
SMNH-Type-9186	KEL5	17.5	≥2 pieces on several of first 20 joints	weakly tumid	8	7–8	covered	dark reddish brown	as dorsal
SMNH-178454	KEL6	17.8	multiple pieces	weakly tumid	7	8	covered	olive brown, white spots	lighter brown
SMNH-Type-9186	KEL8	12.3	single	flat	9	8	covered	olive disc, white spots, grey banded arms	olive all over, white pattern
SMNH-Type-9186	KEL10	9.9	single	flat	7	8	covered	olive, white spots	dark brown
SMNH-178454	KEL11	17.1	2 pieces on many of first 20 joints	flat	9	9	covered	olive grey	as dorsal
SMNH-Type-9186	KEL12	15.2	≥2 pieces on many of first 20 joints	flat	9	8–9	covered	dark olive brown, white spots	as dorsal
SMNH-Type-9186	KEL15	15.1	multiple pieces	tumid	9	8	covered	dark brown, large white radiating pattern	as dorsal
SMNH-Type-9186	KEL17	15.4	15 joints with 2+ pieces on first 23 joints	weakly tumid	8	8	covered	olive, white spots	as dorsal
SMNH-Type-9186	KEL18	13.1	mostly single, few joints with several pieces	flat	9	8	naked	dark olive, some red, white spots	as dorsal
SMNH-Type-9186	KEL20	15.1	few pieces, within 30 joints	flat	9	8	covered	dark brown, white spot pattern	as dorsal
SMNH-Type-9185	KEL30	17.4	multiple pieces, within> 30 joints	weakly tumid	10	7–8	covered	dark brown, white pattern	brown
SMNH-Type-9186	KEL33	12.0	entire	flat	8	8	covered	brown, white spots	greenish brown
SMNH-Type-9186	KEL35	11.6	entire	flat	8	7–8	covered	olive white variegated	olive, white spots