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Schönberg, Christine H L; Beuck, Lydia (2007): Spicule dimensions of Siphonodictyon spp., raw data, biometry and frequency distributions. PANGAEA, https://doi.org/10.1594/PANGAEA.659091, Supplement to: Schönberg, CHL; Beuck, L (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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Abstract:
Early descriptions for species of Aka were poor in detail, and the only spicule type that occurs in this genus does not vary much between species, which led to taxonomic confusion. Moreover, the type specimens of 5 species of Aka are lost, causing considerable problems. Mediterranean specimens of Aka were identified as Aka labyrinthica (Hancock, 1849) by Topsent (1900), even though this species was originally described from the Indo-Pacific. All following publications on Mediterranean Aka accepted Topsent's decision. We assessed this problem with new samples from the Ionian Sea. Our material consisted of only one specimen of Aka, and we had to rely mainly on spicule characters for comparison to other species. We developed a system for species recognition solely based on spicular characters and biometry, involving a combination of the parameters oxea length, width, tip form and angle of curvature. This approach was surprisingly accurate. Forming ratios of the above parameters was less helpful, but can sometimes provide additional information. We identified our sample as Aka infesta (Johnson, 1899), and describe it as a minute-fistulate species with large, multicamerate erosion traces and stout, smooth oxeas. Our data further imply that A. labyrinthica sensu Hancock has not yet been found in the Mediterranean. A. labyrinthica sensu Topsent is a collection of different species not including A. labyrinthica sensu Hancock.
Coverage:
Median Latitude: 15.551884 * Median Longitude: 16.481498 * South-bound Latitude: -26.000000 * West-bound Longitude: -79.250000 * North-bound Latitude: 44.300000 * East-bound Longitude: 146.483333
Date/Time Start: 1889-03-30T00:00:00 * Date/Time End: 2006-10-27T00:00:00
Event(s):
CHLS_1 * Date/Time: 1897-03-30T00:00:00 * Elevation: -880.0 m * Location: Aegean Sea * Device: Dredge (DRG) * Comment: unknown sample location
CHLS_10 * Latitude: -18.616667 * Longitude: 146.483333 * Date/Time: 1997-08-03T00:00:00 * Elevation: -3.0 m * Location: Coral Sea * Device: Sampling by diver (DIVER)
CHLS_11 * Latitude: -18.616667 * Longitude: 146.483333 * Date/Time: 1997-08-03T00:00:00 * Elevation: -3.0 m * Location: Coral Sea * Device: Sampling by diver (DIVER)
Size:
87 datasets

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Datasets listed in this Collection

  1. Schönberg, CHL (2007): Biometry of Siphonodictyon alberti Schönberg, in review; sample no. MNHN (LBIM) DT 875 (holotype). https://doi.org/10.1594/PANGAEA.659045
  2. Schönberg, CHL (2007): Biometry of Siphonodictyon brevitubulatum Pang, 1973; sample no. YPM 8717 (holotype). https://doi.org/10.1594/PANGAEA.659037
  3. Schönberg, CHL (2007): Biometry of Siphonodictyon cachacrouense Rützler, 1971; sample no. USNM 24094 (holotype). https://doi.org/10.1594/PANGAEA.659049
  4. Schönberg, CHL (2007): Biometry of Siphonodictyon cf. coralliphagum Rützler, 1971; sample no. MNHN DT 2423. https://doi.org/10.1594/PANGAEA.659051
  5. Schönberg, CHL (2007): Biometry of Siphonodictyon coralliphagum forma typica Rützler, 1971; sample no. USNM 24095 (holotype). https://doi.org/10.1594/PANGAEA.659050
  6. Schönberg, CHL (2007): Biometry of Siphonodictyon cruzi Schönberg, in review; sample no. ZMA POR 05194 (holotype). https://doi.org/10.1594/PANGAEA.659052
  7. Schönberg, CHL (2007): Biometry of Siphonodictyon fromonti Bergquist, 1965; Schönberg´s sample no. LPBF19. https://doi.org/10.1594/PANGAEA.659036
  8. Schönberg, CHL (2007): Biometry of Siphonodictyon fromonti Bergquist, 1965; Schönberg´s sample no. LPBF61. https://doi.org/10.1594/PANGAEA.659035
  9. Schönberg, CHL (2007): Biometry of Siphonodictyon infestum (Johnson, 1899); from drawing of spicules of holotype. https://doi.org/10.1594/PANGAEA.659053
  10. Schönberg, CHL (2007): Biometry of Siphonodictyon infestum (Johnson, 1899); sample no. ZMA POR 19927. https://doi.org/10.1594/PANGAEA.659062
  11. Schönberg, CHL (2007): Biometry of Siphonodictyon infestum (Johnson, 1899); sample no. ZMA POR 19927. https://doi.org/10.1594/PANGAEA.658949
  12. Schönberg, CHL (2007): Biometry of Siphonodictyon insidiosum (Johnson, 1899); from drawing of spicules of holotype. https://doi.org/10.1594/PANGAEA.659054
  13. Schönberg, CHL (2007): Biometry of Siphonodictyon labyrinthicum (Hancock, 1849); from photographs of spicules of holotype HMN 4.15.45-4.15.48. https://doi.org/10.1594/PANGAEA.659055
  14. Schönberg, CHL (2007): Biometry of Siphonodictyon maldiviensis (Calcinai et al., 2000); sample no. Calcinai collection MD 101. https://doi.org/10.1594/PANGAEA.659056
  15. Schönberg, CHL (2007): Biometry of Siphonodictyon minakestrum Schönberg, in review; sample no. MNHN DT 2534 (paratype). https://doi.org/10.1594/PANGAEA.659057
  16. Schönberg, CHL (2007): Biometry of Siphonodictyon minutum (Thomas, 1972); sample no. MRAC 1466. https://doi.org/10.1594/PANGAEA.659059
  17. Schönberg, CHL (2007): Biometry of Siphonodictyon minutum (Thomas, 1972); sample no. QM G322595. https://doi.org/10.1594/PANGAEA.659060
  18. Schönberg, CHL (2007): Biometry of Siphonodictyon mucosum Bergquist, 1965; sample no. USNM 23697 (holotype). https://doi.org/10.1594/PANGAEA.659061
  19. Schönberg, CHL (2007): Biometry of Siphonodictyon nodosum (Hancock, 1849); from photographs of spicules of holotype HMN 4.16.11-4.16.13. https://doi.org/10.1594/PANGAEA.659038
  20. Schönberg, CHL (2007): Biometry of Siphonodictyon oculatum (Hancock, 1849); holotype; from photographs of spicules of holotype of S. labyrinthicum HMN 4.15.45-4.15.48. https://doi.org/10.1594/PANGAEA.659039
  21. Schönberg, CHL (2007): Biometry of Siphonodictyon paratypicum (Fromont, 1993); sample no. QM G322242. https://doi.org/10.1594/PANGAEA.659040
  22. Schönberg, CHL (2007): Biometry of Siphonodictyon rodens (Johnson, 1899); from drawing of spicules of holotype. https://doi.org/10.1594/PANGAEA.659041
  23. Schönberg, CHL (2007): Biometry of Siphonodictyon siphonum (de Laubenfels, 1949); sample no. USNM 24107. https://doi.org/10.1594/PANGAEA.659042
  24. Schönberg, CHL (2007): Biometry of Siphonodictyon sp.; Calcinai collection, sample no. (no number, labeled ´Costa Brava´). https://doi.org/10.1594/PANGAEA.659046
  25. Schönberg, CHL (2007): Biometry of Siphonodictyon sp.; Schönberg collection, Calcinai sample labeled ´Portofino´. https://doi.org/10.1594/PANGAEA.659048
  26. Schönberg, CHL (2007): Biometry of Siphonodictyon sp.; sample no. MNHN DNBE 711. https://doi.org/10.1594/PANGAEA.659047
  27. Schönberg, CHL (2007): Biometry of Siphonodictyon sp.; sample no. MNHN DT 2521. https://doi.org/10.1594/PANGAEA.659044
  28. Schönberg, CHL (2007): Biometry of Siphonodictyon sp.; sample no. MNHN DT 2533. https://doi.org/10.1594/PANGAEA.659058
  29. Schönberg, CHL (2007): Biometry of Siphonodictyon xamaycaense Pulitzer-Finali 1968; sample no. USNM 47707 (holotype). https://doi.org/10.1594/PANGAEA.659043
  30. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon alberti spicule dimensions (Schönberg, in review); sample no. MNHN (LBIM) DT 875 (holotype). https://doi.org/10.1594/PANGAEA.659073
  31. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon brevitubulatum spicule dimensions (Pang, 1973); sample no. YPM 8717 (holotype). https://doi.org/10.1594/PANGAEA.659065
  32. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon cachacrouense spicule dimensions (Rützler, 1971); sample no. USNM 24094 (holotype). https://doi.org/10.1594/PANGAEA.659077
  33. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon cf. coralliphagum spicule dimensions (Rützler, 1971); sample no. MNHN DT 2423. https://doi.org/10.1594/PANGAEA.659079
  34. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon coralliphagum forma typica spicule dimensions (Rützler, 1971); sample no. USNM 24095 (holotype). https://doi.org/10.1594/PANGAEA.659078
  35. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon cruzi spicule dimensions (Schönberg, in review); sample no. ZMA POR 05194 (holotype). https://doi.org/10.1594/PANGAEA.659080
  36. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon fromonti spicule dimensions (Bergquist, 1965); Schönberg´s sample no. LPBF19. https://doi.org/10.1594/PANGAEA.659064
  37. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon fromonti spicule dimensions (Bergquist, 1965); Schönberg´s sample no. LPBF61. https://doi.org/10.1594/PANGAEA.659063
  38. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon fromonti spicule dimensions (Bergquist, 1965); sample no. USNM 23697 (holotype). https://doi.org/10.1594/PANGAEA.659089
  39. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon infestum spicule dimensions (Johnson, 1899); from drawing of spicules of holotype. https://doi.org/10.1594/PANGAEA.659081
  40. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon infestum spicule dimensions (Johnson, 1899); sample no. ZMA POR 19927. https://doi.org/10.1594/PANGAEA.659090
  41. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon infestum spicule dimensions (Johnson, 1899); sample no. ZMA POR 19927. https://doi.org/10.1594/PANGAEA.658948
  42. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon insidiosum spicule dimensions (Johnson, 1899); from drawing of spicules of holotype. https://doi.org/10.1594/PANGAEA.659082
  43. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon labyrinthicum spicule dimensions (Hancock, 1849); from photographs of spicules of holotype HMN 4.15.45-4.15.48. https://doi.org/10.1594/PANGAEA.659083
  44. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon maldiviensis spicule dimensions (Calcinai et al., 2000); sample no. Calcinai collection MD 101. https://doi.org/10.1594/PANGAEA.659084
  45. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon minakestrum spicule dimensions (Schönberg, in review); sample no. MNHN DT 2534 (paratype). https://doi.org/10.1594/PANGAEA.659085
  46. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon minutum spicule dimensions (Thomas, 1972); sample no. MRAC 1466. https://doi.org/10.1594/PANGAEA.659087
  47. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon minutum spicule dimensions (Thomas, 1972); sample no. QM G322595. https://doi.org/10.1594/PANGAEA.659088
  48. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon nodosum spicule dimensions (Hancock, 1849); from photographs of spicules of holotype HMN 4.16.11-4.16.13. https://doi.org/10.1594/PANGAEA.659066
  49. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon oculatum spicule dimensions (Hancock, 1849); holotype; from photographs of spicules of holotype of S. labyrinthicum HMN 4.15.45-4.15.48. https://doi.org/10.1594/PANGAEA.659067
  50. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon paratypicum spicule dimensions (Fromont, 1993); sample no. QM G322242. https://doi.org/10.1594/PANGAEA.659068
  51. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon rodens spicule dimensions (Johnson, 1899); from drawing of spicules of holotype. https://doi.org/10.1594/PANGAEA.659069
  52. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon siphonum spicule dimensions (de Laubenfels, 1949); sample no. USNM 24107. https://doi.org/10.1594/PANGAEA.659070
  53. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon sp. spicule dimensions (Schönberg collection, Calcinai sample labeled ´Portofino´). https://doi.org/10.1594/PANGAEA.659076
  54. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon sp. spicule dimensions; Calcinai collection, sample no. (no number, labeled ´Costa Brava´). https://doi.org/10.1594/PANGAEA.659074
  55. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon sp. spicule dimensions; sample no. MNHN DNBE 711. https://doi.org/10.1594/PANGAEA.659075
  56. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon sp. spicule dimensions; sample no. MNHN DT 2521. https://doi.org/10.1594/PANGAEA.659072
  57. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon sp. spicule dimensions; sample no. MNHN DT 2533. https://doi.org/10.1594/PANGAEA.659086
  58. Schönberg, CHL (2007): Frequency distributions of Siphonodictyon xamaycaense spicule dimensions (Pulitzer-Finali, 1968); sample no. USNM 47707 (holotype). https://doi.org/10.1594/PANGAEA.659071
  59. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon alberti Schönberg, in review; sample no. MNHN (LBIM) DT 875 (holotype). https://doi.org/10.1594/PANGAEA.658967
  60. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon brevitubulatum Pang, 1973; sample no. YPM 8717 (holotype). https://doi.org/10.1594/PANGAEA.658959
  61. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon cachacrouense Rützler, 1971; sample no. USNM 24094 (holotype). https://doi.org/10.1594/PANGAEA.658971
  62. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon cf. coralliphagum Rützler, 1971; sample no. MNHN DT 2423. https://doi.org/10.1594/PANGAEA.658973
  63. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon coralliphagum forma typica Rützler, 1971; sample no. USNM 24095 (holotype). https://doi.org/10.1594/PANGAEA.658972
  64. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon cruzi Schönberg, in review; sample no. ZMA POR 05194 (holotype). https://doi.org/10.1594/PANGAEA.658974
  65. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon fromonti Bergquist, 1965; Schönberg´s sample no. LPBF19. https://doi.org/10.1594/PANGAEA.658958
  66. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon fromonti Bergquist, 1965; Schönberg´s sample no. LPBF61. https://doi.org/10.1594/PANGAEA.658957
  67. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon infestum (Johnson, 1899); from drawing of spicules of holotype. https://doi.org/10.1594/PANGAEA.658975
  68. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon infestum (Johnson, 1899); sample no. ZMA POR 19927; 1/2. https://doi.org/10.1594/PANGAEA.658942
  69. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon infestum (Johnson, 1899); sample no. ZMA POR 19927; 2/2. https://doi.org/10.1594/PANGAEA.658984
  70. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon insidiosum (Johnson, 1899); from drawing of spicules of holotype. https://doi.org/10.1594/PANGAEA.658976
  71. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon labyrinthicum (Hancock, 1849); from photographs of spicules of holotype HMN 4.15.45-4.15.48. https://doi.org/10.1594/PANGAEA.658977
  72. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon maldiviensis (Calcinai et al., 2000); sample no. Calcinai collection MD 101. https://doi.org/10.1594/PANGAEA.658978
  73. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon minakestrum Schönberg, in review; sample no. MNHN DT 2534 (paratype). https://doi.org/10.1594/PANGAEA.658979
  74. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon minutum (Thomas, 1972); sample no. MRAC 1466. https://doi.org/10.1594/PANGAEA.658981
  75. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon minutum (Thomas, 1972); sample no. QM G322595. https://doi.org/10.1594/PANGAEA.658982
  76. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon mucosum Bergquist, 1965; sample no. USNM 23697 (holotype). https://doi.org/10.1594/PANGAEA.658983
  77. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon nodosum (Hancock, 1849); from photographs of spicules of holotype HMN 4.16.11-4.16.13. https://doi.org/10.1594/PANGAEA.658960
  78. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon oculatum (Hancock, 1849); holotype; from photographs of spicules of holotype of S. labyrinthicum HMN 4.15.45-4.15.48. https://doi.org/10.1594/PANGAEA.658961
  79. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon paratypicum (Fromont, 1993); sample no. QM G322242. https://doi.org/10.1594/PANGAEA.658962
  80. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon rodens (Johnson, 1899); from drawing of spicules of holotype. https://doi.org/10.1594/PANGAEA.658963
  81. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon siphonum (de Laubenfels, 1949); sample no. USNM 24107. https://doi.org/10.1594/PANGAEA.658964
  82. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon sp.; Calcinai collection, sample no. (no number, labeled ´Costa Brava´). https://doi.org/10.1594/PANGAEA.658968
  83. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon sp.; Schönberg collection, Calcinai sample labeled ´Portofino´. https://doi.org/10.1594/PANGAEA.658970
  84. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon sp.; sample no. MNHN DNBE 711. https://doi.org/10.1594/PANGAEA.658969
  85. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon sp.; sample no. MNHN DT 2521. https://doi.org/10.1594/PANGAEA.658966
  86. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon sp.; sample no. MNHN DT 2533. https://doi.org/10.1594/PANGAEA.658980
  87. Schönberg, CHL (2007): Spicule dimensions of Siphonodictyon xamaycaense Pulitzer-Finali 1968; sample no. USNM 47707 (holotype). https://doi.org/10.1594/PANGAEA.658965