Clathrina hirsuta, Klautau & Valentine, 2003
|
publication ID |
https://doi.org/ 10.1046/j.0024-4082.2003.00063.x |
|
persistent identifier |
https://treatment.plazi.org/id/03D5484C-D433-C372-FEA2-FB26FC8BFA1E |
|
treatment provided by |
Carolina |
|
scientific name |
Clathrina hirsuta |
| status |
sp. nov. |
CLATHRINA HIRSUTA View in CoL SP. NOV.
Original identification: Leucosolenia cerebrum ( Haeckel, 1872)
Etymology: Latin hirsutus (= full of bristles). Describing the hispid surface.
Type locality: Stil Bay, Cape Town, South Africa.
Type: BMNH 1932.7 .25.8 (holotype /alcohol). Stil Bay , Cape Town, South Africa. Professor T.A. Stephenson Collection (25 January 1932) (Collection number 183) .
The holotype of C. hirsuta sp. nov. is a little fragmented and mixed with sediment.
Colour: Its colour when preserved is light yellow.
Description: The largest fragment is 1.0 ¥ 0.8 ¥ 0.4 cm. Cormus formed of large, irregular and loosely anastomosed tubes ( Fig. 41A View Figure 41 ). Water-collecting tubes converge to form conical projections with an osculum. The surface of the tubes is hispid because of the presence of diactines and trichoxea. Cells with granules were not observed. The skeleton comprises equiangular and equiradiate triactines ( Fig. 41B View Figure 41 ) and very few tetractines. Actines are conical and straight, with a sharp tip. Diactines are fusiform and slightly curved ( Fig. 41C View Figure 41 ). They are projected towards the exterior of the tubes. Trichoxeas are also present, perpendicular to the surface of the tubes.
Length (Mm) Width (Mm)
Triactines 107.5 122.5 ± 8.0 135.0 13.3 ± 0.8 20
Tetractines 100.0 122.3 ± 12.8 155.0 12.5 ± 1.3 20
Apical 57.6 80.9 ± 17.8 100.8 6.5 ± 1.2 03
actine
Diactines 234.6 302.9 ± 49.0 408.0 14.3 ± 1.5 20 Triactines Tetractines Apical actine Diactines
L/ W 162.0 /15.5 159.8/14.5 156.8/9.5 474.3/29.6 (Mm)
C. hirsuta sp. nov.
L/ W 122.5 /13.3 122.3/12.5 80.9/6.5 302.9/14.3 (Mm)
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.