Fig. 1
From: Feeding ecology in sea spiders (Arthropoda: Pycnogonida): what do we know?
Chelifores and palps of different pycnogonid families showing different morphologies. Originals, except B after [115]. a Anoplodactylus angulatus, with dorsally positioned chelifores, palps absent. Bar 20 μm. b Anoplodactylus petiolatus, detail of chelifore with unarmed fixed and movable finger. Bar 20 μm. c Nymphon gracile, with laterally positioned chelifores and dorsally positioned palps. Bar 100 μm. d Nymphon gracile, detail of chelifore with toothed fixed and movable finger. Bar 100 μm. e Ammothella appendiculata, with reduced chela. Fixed and movable finger still present (arrow). Palps long, extending beyond proboscis. Bar 200 μm. f Achelia echinata, with reduced chela. Fixed and movable finger fused to small bud (arrow). Palps with approx. Same length of proboscis. Bar 200 μm. g Tanystylum conirostre, chelifore reduced to small bud with seta (arrowhead). Palps shorter than proboscis. Bar 100 μm. h Endeis spinosa, chelifore reduced protuberance with seta (arrowhead). Palps absent. Bar 200 μm. cf., chelifore; ff, fixed finger; mf, movable finger; pa, palpus; pr, proboscis