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Schönberg, Christine H L (2007): Spicule dimensions of Siphonodictyon insidiosum (Johnson, 1899); from drawing of spicules of holotype. PANGAEA, https://doi.org/10.1594/PANGAEA.658976, In supplement to: Schönberg, Christine H L; Beuck, Lydia (2007): Where Topsent went wrong: Aka infesta a.k.a. Aka labyrinthica (Demospongiae: Phloeodictyidae). Journal of the Marine Biological Association of the United Kingdom, 87, 1459-1476, https://doi.org/10.1017/S0025315407058249

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Coverage:
Median Latitude: 32.750000 * Median Longitude: -16.775000 * South-bound Latitude: 32.366667 * West-bound Longitude: -17.283333 * North-bound Latitude: 33.133333 * East-bound Longitude: -16.266667
Minimum ORDINAL NUMBER: 1 * Maximum ORDINAL NUMBER: 20
Event(s):
CHLS_2 * Latitude Start: 32.366667 * Longitude Start: -16.266667 * Latitude End: 33.133333 * Longitude End: -17.283333 * Location: North Atlantic Ocean * Device: Agassiz Trawl (AGT)
Comment:
Substrate: upon shells of Ostrea and Chama; Sampled by 'fishermen' and identified by J. Johnson as 'Acca insidiosa'. All measurements are of mature, fully formed oxeas (from drawing). Small sample size insufficient, does not allow statistical comparison with other samples. Measurements conducted by C. Schönberg on Johnson's Fig. 1. Data are sorted vertically by spicule width.; Johnson, James Y. (1899) Notes on some sponges belonging to the Clionidae obtained at Madeira. Journal of the Royal Microscopical Society, Transactions of the Society 9: 461-463 (S. insidiosum: pp. 161-162, Fig. 1).
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1ORDINAL NUMBEROrd NoGeocode
2Oxea lengthOxea lµmSchönberg, Christine H LFrom photographs and drawings, measured with ruler
3Oxea widthOxea wµmSchönberg, Christine H LFrom photographs and drawings, measured with ruler
4Oxea length/width ratioOxea l/wSchönberg, Christine H LCalculated
Size:
60 data points

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