New records of aplousobranch ascidians from Central Chile
Author
Sanamyan, Karen
Author
Schories, Dirk
Author
Sanamyan, Nadya
text
Zootaxa
2010
2537
58
68
journal article
10.5281/zenodo.196669
70c7165d-3004-4826-a296-710cd0673bb8
1175-5326
196669
Aplidium falklandicum
Millar, 1960
(
Figures 2A
,
5A,B
)
Aplidium falklandicum
Millar, 1960
: 33
; 1970: 100;
Monniot & Monniot, 1983
: 15
(synonymy).
Material examined:
Chile
, 4. region: Punta de Choros, Rhodymenia,
10m
, two colonies; La gruta,
25m
, one colony.
Remarks.
Examined specimens have solid oval colonies with a rather small area of attachment. Zooids are in small circular or oval systems (
Figure 5A
). The test is soft, gelatinous, transparent and colourless; the living specimens are whitish or colourless. Thread-like zooids are up to
10 mm
long. Stomach wall has five longitudinal folds. According to
Millar (1960)
the number of rows of stigmata may vary from 12 to 23, a much wider range than occur in most
Aplidium
species. In the present specimens zooids have 12–14 rows of stigmata.
Monniot & Monniot (1983)
reported that the number of rows of stigmata is variable but rarely attain 16. Unusual white "thoracic triangles" described for this species by
Millar (1960: 35)
were not found in the present material. Other features of zooid agree well with the original description, and larva (
Figure 2A
) is identical to those illustrated by
Millar (1960)
.