Table 4 in Systematic revision of the genus Peronia Fleming, 1822 (Gastropoda, Euthyneura, Pulmonata, Onchidiidae)

Table 4. Summary of traits that can help identify Peronia species, based exclusively on specimens examined for the present revision. Species are arranged in a phylogenetic order (Figs 2 - 4). Traits are described in detail in species descriptions.
SpeciesMax. animal length (mm)Papillae with dorsal eyesIntestinal type (transitional loop orientation)Retractor muscle insertion (near heart or end of visceral cavity)Muscular sac length (mm)Accessory penial gland spine length (mm)Accessory penial gland spine diameter base (μm)Accessory penial gland spine diameter tip (μm)Penis hooks length (μm)DistributionP. peronii14015-20I (12-3 o’clock)heart (exc. vestigial)>203.0-5.0400-500160-200<50Indo-West Pacific (Zanzibar to Okinawa and Tonga)P. okinawensis2710-15I (12-3 o’clock)heart<151.8-2.3240-300115-150<35Japan (Okinawa)P. madagascariensis8012-18Vend of VC<152-2.4200-23070-80<100Western Indian OceanP. platei307-10Vend of VC<50.7-1.065-10020-30<60Western Pacific (PNG to Hawaii & French Polynesia)P. setoensis208-12Vend of VC<50.9-1.280-8515-25<25Japan (Wakayama)P. griffithsi256-10Vend of VC (exc. heart)<50.50-0.6260-6515-20<25Indo-West Pacific (Mauritius to Kei Islands & New Ireland)P. sydneyensis508-16I (3-6 o’clock)end of VC<100.6-1.090-10020-50<30Queensland, New South Wales & New CaledoniaP. willani6510-25I (3-6 o’clock)end of VC<251.5-1.9240-25080-100<37Northern TerritoryP. verruculata#160 (exc. 73)10-22I (3-6 o’clock)end of VC<151.4-2.0100-27035-50<50Singapore to eastern Australia, New Caledonia & Japan#25514-22<101.4-1.7140-16030-35Sumatra & Andaman#34010-181.8-2.2200-27040-80<60Malaysia & Singapore#460(1.3) 2.2-2.820050Western India, Pakistan & Persian Gulf#55010-201.8-2.0150-18045-50<55Mozambique & Madagascar#64010-18<152.0-2.4140-20055-60Red Sea