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Fieldtrip to Reef Point, Crystal Cove S.P., near Laguna Beach, Orange Co., CA, March 23, 2012

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owl limpet (Lottia gigantea) territories
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Initiating a territorial response with a small male limpet.
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juvenile owl limpet
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juvenile owl limpet side of foot and head are brown or black
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Chlorostoma aureotincta (gilded turban snail)
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Note the orange open umbillicus of Chlorostoma aureotincta.
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Chlorostoma funebralis (black turban shell) has a distinct division of light and dark areas on the underside of the shell, unlike the less distinct division of the similar species, Chlorostoma gallina (speckled turban snail).
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Chlorostoma funebralis has a scaly mid-sutural band, which is lacking in Chlorostoma gallina.
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Norrisia norrisi (Norris' top snail)
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Lottia "pelta" (southern shield limpet) and Cyanoplax hartwegii (Hartweg's chiton) under the rockweed, Silvetia compressa.
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the sipunculan (peanut worm) Themiste pyroides
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Trimusculus reticulatus, from under ledge, is a pulmonate suspension feeder.
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Lottia paleacea (surfgrass limpet) on the narrow surfgrass, Phyllospadix torreyi
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Pteropurpura festiva (festive murex)
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Callianax biplicata (purple olive shell; formerly Olivella biplicata)
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Brown pelican (Pelecanus occidentalis)
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Opalia funiculata (scallop-edged wentletrap) is a carnivore; it feeds on sea anemones.
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Cyanoplax keepiana (Keep's chiton)
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Lepidozona pectinulata
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Serpulidae
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Pachycheles rudis (thick-clawed porcelain crab)
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Eisenia arborea (southern sea palm)
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Fissurella volcano (volcano keyhole limpet)
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unusually high profile Lottia "pelta" (southern shield limpet)
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Mopalia muscosa (mossy chiton)
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Lepidozona pectinulata
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Tidepool ghost shrimp, Neotrypaea biffari (formerly Callianassa affinis)
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A mated pair of the California blind gobies (Typhlogobius californiensis) live in the burrow of a pair of tidepool ghost shrimps, Neotrypaea biffari - see also here
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