Family Panopeidae

Taxa Authority Ortmann, 1893

Species List Lophopanopeus bellus (Stimpson, 1860) Black-clawed Crab Lophopanopeus bellus Rathbun, 1900 diegensis

Geographic Range British Columbia south to California

Morphology

Cephalothorax hexagonal (xanthoid-shaped), wider than long. Eyes and orbits short. Carapace margins diverging. Posterior margin usually narrow. Thoracic sternum relatively narrow, not very enlarged behind sternite 4. Abdomen Male sexual opening coxal. Penial groove never closed. First gonopod typically panopeid. Proximal abdominal segments usually completely covering space between coxae of last pairof legs, sometimes small portion of sternite 8 uncovered. Type genus: Panopeus H. Milne Edwards, 1834.

References

Citation: Davie, P. (2012). Panopeidae. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=254358 on 2013-03-15

Citation: Davie, P. (2015). Lophopanopeus diegensis. Accessed through: World Register of Marine Species at http://marinespecies.org/aphia.php?p=taxdetails&id=443977 on 2017-03-10 additional source: Martin, J.W.; Davis, G.E. (2001). An updated classification of the recent Crustacea. Science Series, 39. Natural History Museum of Los Angeles County: Los Angeles, CA (USA). vii, 123 pp.

Stevcic, Z. 2005. The reclassification of Brachyuran crabs(Crustacea, Decapoda, Brachyura) Nat. Croat. Vol.14, Suppl. 1: 1-159. Zagreb Geographic Range Resurrection Bay, Alaska, to Point Sur, California; interfidal to 80 m. Distribution in British Columbia: Common intertidally.

Habitat lntertidally under rocks in mud or gravel.

Morphology carapace: surface relatively smooth with a few small granules on flat elevations. Pereopods: chelipeds stout with smooth surfaces; carpus may be slightly rugose. P2-5 stout with slight crest on dorsal margin of carpus. Some scattered setae and areas of short dense pubescence.

Size Carapace: male 23 X 34 mm; female 15 X 22 mm

Coloration Variable. Carapace and chelipeds a mixture of various shades of brown, violet, purple. grey and white; fingers black with white teeth and sometimes with pink tips. Walking legs may appear to be somewhat banded with dark and light colouring. Ventrally light coloured. Peduncle of antennules banded light and dark. Eyestalk brown and white; cornea black.

Synonyms Xantho bellus Stimpson, 1860 Xantho hemphilliana Lockington, 1877 (incorrect spelling) Xanthodes hemphillii Lockington, 1877

Remarks Ng et al. (2008) and WoRMS list Lophopanopeus bellus and L. diegensis as separate species. However, many NEP authors including Wickstein (2012a) treat the two as subspecies - Lophopanopeus bellus bellus and L. bellus diegensis.

References

Citation: Davie, P. (2012). Lophopanopeus bellus (Stimpson, 1860). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=443976 on 2013-02-11

Hart, J.F.L. 1982. Crabs and their relatives of British Columbia. British Columbia Provincial Museum Handbook 40. Victoria, British Columbia.

Ng, P.K.L., D. Guinot, and P.J.F. Davie (2008) Systema Brachyurorum: Part I. An annotated checklist of extant brachyuran crabs of the world.

Wicksten, Mary K., 2012. Decapod Crustacea of the Californian and Oregonian Zoogeographic Provinces. 307 pp. Magnolia Press.