Polysyncraton magnetae Hastings, 1931

Kott, Patricia, 2007, New and little-known species of Didemnidae (Ascidiacea, Tunicata) from Australia (part 4), Journal of Natural History 41 (17 - 20), pp. 1163-1211 : 1172

publication ID

https://doi.org/ 10.1080/00222930701359218

persistent identifier

https://treatment.plazi.org/id/191287F0-FFD2-FFB9-FE25-FD859FF4CE7F

treatment provided by

Carolina

scientific name

Polysyncraton magnetae Hastings, 1931
status

 

Polysyncraton magnetae Hastings, 1931

( Figure 7A View Figure 7 ) Polysyncraton magnetae Hastings 1931, p 100 ; Kott 2001, p 109 and synonymy; 2004a, p 741.

Distribution

Previously recorded (see Kott 2004a): Queensland (Great Barrier Reef). New record: Queensland (Great Barrier Reef: 18.615 ° S, 146.645 ° E, 30 m, QM G308818 ) GoogleMaps .

Description

The newly recorded colony consists of large vertical lamellae with two sorts of spicules crowded throughout. Spicules, to 0.05 mm diameter, are both stellate (with 13–15 conical pointed rays) and globular (with rod-like, flat-tipped rays).

Zooids each have a large yellow egg at the posterior end of the abdomen and two loose coils of the vas deferens around seven or eight male follicles.

Remarks

Larger spicules (to 0.05 mm) are present than the 0.035 mm diameter previously recorded for this species. Also, the number of spicule rays in optical transverse section (15–17) that Kott (2001, Figure 162I) recorded appears to be too high. Other characteristics, including the yellow egg at the posterior end of the zooid, are reported previously for this species.

QM

Queensland Museum

Kingdom

Animalia

Phylum

Chordata

Class

Ascidiacea

Order

Enterogona

Family

Didemnidae

Genus

Polysyncraton

Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF