– Species Fact Sheet - Synoicum globosum
The firm gelatinous colonies consist of oval to egg shaped or slightly flattened heads (5.0 x 3.5 cm in diameter and 4.5 cm high) cone-shape stalk (3.0 x 2.5 cm in diameter by 1.5 cm high).
Zooids are clearly visible in freshly collected specimens with the red coloured zooids in contrast with the mustard yellow of the test.
Zooids are arranged in compact circular systems of 8 - 12 zooids.
Internally the zooid (between 8 and 20 mm in length), thoraxes and abdomens are closely packed together in recognizable layers with little test material between them.
The branchial opening has 6 small lobes and the atrial opening is small with a single ribbon-like tongue, small teeth or lobes are present on the flattened distal end of the tongue.
The branchial sac has 11-14 rows of stigmata with 10-11 stigmata in each of the rows.
The smooth somewhat posteriorly flattened stomach is situated about half way down the abdomen.
Ova and testes follicles in a slender posterior abdomen.
One to two larvae are present in a developmental sequence in the atrial cavity of the zooids.
Larva have 12 or more ampullae arranged in 2-3 rows on each side of the adhesive organs, epidermal vesicles are present dorsally and ventrally.
Sikorska, J.; Parker-Nance, S.; Davies-Coleman, M. T.; Vining, O. B.; Sikora, A. E.; et al. 2012 Antimicrobial rubrolides P-S from a South African species of Synoicum.75:1824-1827