Sphaerodoridae Malmgren, 1867
At least five species of Sphaerodoridae were encountered in material collected from Falkland Islands. These are summarised in the table below.
|
Body shape |
No. of rows of macrotubercles |
Form of macrotubercles |
Arrangement of macrotubercles |
Form of chaetae |
|
|
Sphaerodoropsis cf. macrotubercula Böggemann, 2009 |
grub-shaped |
6-7 |
distally rounded, sessile |
forming a zig-zag pattern; tightly packed, completely covering dorsum |
compound unidentate |
|
Sphaerodoropsis sp. 1 |
grub-shaped |
6 |
distally rounded, sessile |
forming a zig-zag pattern; dorsum easily visible (not completely covered) |
compound unidentate |
|
Sphaerodoropsis sp. 2 |
grub-shaped |
about 15 |
rounded with terminal spot of red pigment, sessile |
forming a regular to zig-zag pattern; tightly packed, completely covering dorsum |
semi-compound unidentate |
|
Sphaerodoropsis sp. 3 |
spindle-shaped |
4 |
distally rounded, sessile |
in group of 2, each group just dorsal to parapodia; low lying, not very prominent |
compound unidentate |
|
Ephesiella? sp. 1 |
elongated |
2 |
rounded with terminal papilla, sessile |
one on each side, dorsal to parapodia |
compound? |
REFERENCES:
Böggemann, M. 2009. Polychaetes (Annelida) of the abyssal SE Atlantic. Organisms Diversity & Evolution, 9, 252-428. , available online at http://www.sciencedirect.com/science/article/pii/S1439609209000464page(s): 393
Borowski, C., 1994. Three new deep‐sea species of Sphaerodoridae (Annelida, Polychaeta) from the eastern tropical South Pacific. Zoologica Scripta, 23(3), pp.193-203.
Fauchald, K. 1974. Sphaerodoridae (Polychaeta: Errantia) from world-wide areas. Journal of Natural History. 8(3): 257-289., available online at http://dx.doi.org/10.1080/00222937400770241
Hartmann-Schröder, G. and Rosenfeldt, Pongchai 1988. Die Polychaeten der Polarstern-Reise ANT III/2 in die Antarktis 1984. Teil 1: Euphrosinidae bis Chaetopteridae. Mitteilungen aus dem Hamburgischen zoologischen Museum und Institut, 85: 25-72.
Moreira, J., Cacabelos, E. and Troncoso, J.S., 2004. A new species of Sphaerodoropsis (Polychaeta: Sphaerodoridae) from north-east Atlantic, with comments on other species of the genus. Journal of the Marine Biological Association of the UK, 84(05), pp.995-1000.
Moreira, J.; Parapar, J. 2011. Sphaerodoridae (Annelida: Polychaeta) from the Bellingshausen Sea (Antarctica) with the description of two new species. Polar Biology 34(2): 193-204, available online at http://dx.doi.org/10.1007/s00300-010-0869-x