Polycarpa procera ( Sluiter, 1885 )

Kott, Patricia, 2006, Observations on non-didemnid ascidians from Australian waters (1), Journal of Natural History 40 (3 - 4), pp. 169-234: 218-219

publication ID

http://doi.org/ 10.1080/00222930600621601

persistent identifier

http://treatment.plazi.org/id/011D87C1-FFC1-CD71-1FBF-FB9DE3D5FE4D

treatment provided by

Felipe

scientific name

Polycarpa procera ( Sluiter, 1885 )
status

 

Polycarpa procera ( Sluiter, 1885)  

Styela procera Sluiter 1885, p 196   .

Polycarpa procera: Kott 1985, p 196   and synonymy.

Distribution

Previously recorded (see Kott 1985): Western Australia ( Cape Jaubert , Shark Bay , Cockburn Sound ); South Australia ( Upper Spencer Gulf ); Victoria ( Ninety Mile Beach , Bass Strait , Warnambool ); New South Wales ( Byron Bay ); Queensland ( Maroochydore , Hervey Bay , Gladstone , southern Great Barrier Reef , Innisfail ); Indonesia, Singapore, Sri Lanka, Japan. New records: Queensland (17.165 –17.935 ° S, 146.535– 146.8 ° E, 35–68 m) GoogleMaps   .

Remarks

The species is plentiful in inter-reefal locations in northeastern Queensland and a wide range in the Indo-West Pacific between Japan in the north to Sri Lanka and around the southern coast of the Australian continent. The species range supports the view that the Australian continental shelf acts as a bridge for gene flow between the tropics and temperate regions.

Externally the species resembles Polycarpa chinensis ( Tokioka, 1967)   which has a similar range and habit to the present species. Both have a test brittle with embedded sand, more or less sessile apertures, rootlets on the ventral surface and the gut usually forming a simple arc between the posterior oesophagus to the base of the atrial aperture. However, the branchial sac of P. procera   has distinct folds with up to 26 internal longitudinal vessels on each fold and at least seven, but sometimes many more between the folds; and it lacks the dorsal gonads and has lobes only on one lip of the bilabiate anal border. Polycarpa chinensis   has dorsal gonads as well as ventral ones, both lips of the anal border are lobed, and its branchial folds are low, each having only four or five vessels and only one or two vessels are between the folds (see Kott 1985). These two species are difficult to distinguish externally and often are sympatric.

Kingdom

Animalia

Phylum

Chordata

Class

Ascidiacea

Order

Stolidobranchia

Family

Styelidae

Genus

Polycarpa

Loc

Polycarpa procera ( Sluiter, 1885 )

Kott, Patricia 2006
2006
Loc

Polycarpa procera: Kott 1985 , p 196

Kott P 1985: 196
1985
Loc

Styela procera

Sluiter CP 1885: 196
1885