. Bulletin. Science; Natural history; Natural history. 122 SOUTHERN CALIFORNIA ACADEMY OF SCIENCES 2b. Notopodia beginning on setiger 2; peristomial rings distinct and not fused dorsally 3 3a. Notopodia shorter than neuropodia; furcate setae with subequal tines P. sanmatiensis Orensanz, 1973 3b. Notopodia as long or longer than neuropodia; furcate setae with unequal tines 4 4a. Prostomium pear-shaped; eyes large, situated behind antennae P. blakei Wolf, 1987 4b. Prostomium rounded; eyes small, situated in front of antennae P. urciensis Campoy & San Martin, 1980 5 a. Prostomium pear-shaped;


. Bulletin. Science; Natural history; Natural history. 122 SOUTHERN CALIFORNIA ACADEMY OF SCIENCES 2b. Notopodia beginning on setiger 2; peristomial rings distinct and not fused dorsally 3 3a. Notopodia shorter than neuropodia; furcate setae with subequal tines P. sanmatiensis Orensanz, 1973 3b. Notopodia as long or longer than neuropodia; furcate setae with unequal tines 4 4a. Prostomium pear-shaped; eyes large, situated behind antennae P. blakei Wolf, 1987 4b. Prostomium rounded; eyes small, situated in front of antennae P. urciensis Campoy & San Martin, 1980 5 a. Prostomium pear-shaped; palps shorter than antennae . P. brevipalpa n. sp. 5b. Prostomium rounded; palps longer than antennae 6 6a. Notopodia longer than neuropodia; anterior neuropodia with superior branchiae 7 6b. Notopodia subequal to neuropodia; anterior neuropodia without supe- rior branchiae 8 7a. Branchiae beginning on setiger 1; notopodia extending through setigers 13-17; all anal cirri short ... P. dibranchiata (Armstrong & Jumars, 1978) 7b. Branchiae beginning on setiger 3; notopodia extending through setigers 8-9; dorsal anal cirri long P. duofurca Wolf, 1987 8a. Notopodia extending through setiger 9; fiircate setae in median setigers serrated, with unequal tines P. bathyalis n. sp. 8b. Notopodia extending through setiger 19; furcate setae in median setigers smooth, with subequal tines P. australiensis Westheide & von Nordheim, 1985. Fig. 3. Worldwide distribution of species of Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Southern California Academy of Sciences. Los Angeles, Calif. : The Academy


Size: 2052px × 1217px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, booksubjectnaturalhistory, booksubjectscience