Table 2 in Petrel extinction in Macaronesia (North-East Atlantic Ocean): the case of the genus Pterodroma (Aves: Procellariiformes: Procellariidae)

Table 2. Skull and mandible measurements of current species of Pterodroma (Pt. madeira from Madeira Island, Pt. deserta from Bugio Islet, Madeira Archipelago, Pt. feae from Cape Verde Archipelago, and Pt. cahow from Bermuda Island) and Pt. zinorum from Pico Island (Azores Archipelago), Pterodroma sp. A from North Dunes of Porto Santo (Madeira Archipelago), and Pterodroma sp. from Canary Islands. Sample size, mean length ± standard error (mm), and range are given. Measurements as in Rando (2002).
Pt. madeiraPt. desertaPt. feaePt. cahowPt. zinorumPterodroma sp. APterodroma sp.MadeiraBugioCape VerdeBermudasp. nov.Porto SantoCanary IslandsPicoSkullLength(1) 66.7(3) 74.2 ± 1.5(1) 71.3(1) 71.7(3) 64.8 ± 1.8(1) 72.2(1) 76.776.3–72.766.4–62.3Height(1) 19.7(3) 20.4 ± 0.1(1) 20.2(1) 20.1(5) 20.3 ± 0.2(2) 23.1 ± 0.720.3–20.420–20.423.6–22.6Width(1) 26.7(3) 29.5 ± 0.7(1) 28(1) 28.8(1) 26.3(1) 30.130.2–28.6Interorbital width(1) 9.6(3) 10.1 ± 0.1(1) 10.1(1) 8.5(5) 9.7 ± 0.6(2) 9.6 ± 0.1(2) 10 ± 0.910.1–1010.3–8.79.6–9.59.3–10.7Maxila dorsal length(4) 32.6 ± 0.6(3) 36.8 ± 0.4(1) 35.3(1) 35.2(2) 31.4 ± 1.2(1) 34.7(1) 39.533.6–31.837.1–36.232.5–30.2Maxilla length(3) 29.1 ± 0.4(3) 31.5 ± 1(1) 31.6(1) 30.9(2) 26.2 ± 0.2(1) 29.9(1) 33.1(from jugal articula-29.6– 28.632.9–30.826.4–26tion)Culmen length (from(6) 18.5 ± 0.4(3) 20.2 ± 0.8(1) 19.6(1) 19.6(3) 16.9 ± 0.9(1) 18.8(1) 21.3anterior edge of narina)19.2–1821.2–19.517.9–15.8Culmen width(3) 11.1 ± 0.7(3) 13.2 ± 0.5(1) 13(1) 11.1(2) 14 ± 0.511.8–10.113.8–12.714.4 –13.7Width of the(4) 8.8 ± 0.4(3) 10.8 ± 0.2(1) 10.4(1) 10.1(5) 8.5 ± 0.3(1) 8.9(2) 11.6nasofrontal join9.1–8.111–10.68.9–8.111.6–11.6MandibleLength(1) 52.35(3) 58.4 ± 0.6(1) 56.9(1) 60.2-59.2-57.6