Table 1 Developmental types in polyclads

Cotylea

Euryleptoidea/Euryleptidae

Maritigrella crozieri

Müller’s larva [12–14]

Euryleptoidea/Prosthiostomidae

Amakusaplana acroporae

Intracapsular Müller’s larva [15]

Pseudocerotoidea/Pericelidae

Pericelis cata

Intracapsular/reduced Müller’s larva [16]

Pseudocerotoidea/Boniniidae

Boninia divae

Reduced Müller’s larva [16]

Acotylea

Leptoplanoidea/Notoplanidae

Notoplana

Notoplana alcinoi

Direct development [17]

Notoplana australis

Goette’s larva [18]

Notoplana delicata

Direct development [19]

Leptoplanoidea/Leptoplanidae

Hoploplana

Hoploplana inquilina

Müller’s larva [10, 20]

Hoploplana villosa

Direct development [19]

Leptoplanoidea/Stylochoplanidae

Stylochoplana

Stylochoplana agilis

Direct development [B Egger, unpublished observations]

Stylochoplana maculata

Müller’s larva [21] after [22]/direct development [23]

Stylochoplana parasitica

Direct development [19]

Stylochoidea/Stylochidae

Stylochus

Stylochus (Imogine) aomori

Goette’s larva [19]

Stylochus (Imogine) mcgrathi

Goette’s larva [24]

Stylochus (Imogine) mediterraneus

Goette’s larva [25]

Stylochus (Imogine) uniporus

Goette’s larva [19]

Stylochus (Imogine) zebra

Direct development [26, 27]

Stylochus (Stylochus) flevensis

Goette’s larva [28]

Stylochus (Stylochus) frontalis

Direct development [29]

Stylochus (Stylochus) neapolitanus

Direct development [21]

Stylochus (Stylochus) pilidium

Goette’s larva [21]

Stylochopsis ellipticus

Goette’s larva [21] after [30]/Müller’s larva [31]

Stylochus luteus

Müller’s larva [21] after [32]

Stylochoidea/Planoceridae

Planocera

Planocera multitentaculata

Müller’s larva [19]

Planocera reticulata

Intracapsular larva [19]/Kato’s larva [33, 34]/direct development [35]