Aplidium cf. grisiatum Kott, 1998

Lambert, Gretchen, Lee, Serina Siew-Chen & Teo, Serena Lay-Ming, 2021, Ascidians collected during the 2013 Singapore Strait International Marine Biodiversity Workshop, Zootaxa 4933 (1), pp. 1-38 : 11

Aplidium cf. grisiatum Kott, 1998 NEW RECORD

Figure 4F

#3845, small brownish-gray colony, dimensions about 1 x 1.5 cm; two rounded small cormidia. Tunic transparent, though encrusted and embedded with sand, except uppermost layer with few or no sand grains. Dorsal tubercle a prominent bump. Atrial languet contracted but apparently without side branches and with a rounded tip. Preserved zooids are a pale pink, about 5.5 mm long, with about 16 rows of stigmata. About eight or nine longitudinal stomach ridges very regular and parallel, plus a few irregular, not extending full length of stomach. No larvae.

Distribution: Australia, Palau.

References: Kott (1992, 1998, 2002a), Monniot F. & Monniot C. (2001).

Figures

FIGURE 4. A–D: Eudistoma laysani. A: whole living colony 3 cm across; B: one head; C: unhatched tadpole 800 µm in length; D: one head of preserved colony. E: Eudistoma regina, part of large colony; F: Aplidium cf. grisiatum colony 1.5 cm in width; G–H: Pseudodistoma fragile. G: whole living colony 4 cm across; H: single zooid 8 mm in length, somewhat contracted. Scale bar: E, 0.4 cm.