Molgula dione, (SAVIGNY, 1816)
publication ID |
https://doi.org/ 10.1046/j.1096-3642.2002.00017.x |
persistent identifier |
https://treatment.plazi.org/id/436F3F3C-FFE2-FF9C-FF26-FE11FC95193A |
treatment provided by |
Carolina |
scientific name |
Molgula dione |
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MOLGULA DIONE ( SAVIGNY, 1816) View in CoL ( Fig. 38 View Figure 38 )
Cynthia dione Savigny, 1816: 93 View in CoL , 153, pl. 7, fig. 1, –
Red Sea. Ctenicella dione: Harant, 1927: 366 , – Suez. Molgula dione: Van Name, 1952: 218 View in CoL , – Aqaba Gulf. Molgula somaliensis Millar, 1988: 845 View in CoL , figs 10,30m, –
Somalia.
Material
Yemen, Socotra Island, coll. C. Monniot, 1997. Description
The single specimen collected is spherical, 26 mm in diameter, entirely embedded with sand and broken shells, making the thin tunic brittle. The siphons are short, close to each other, not protruding.
The body wall is thin. The musculature is limited to the siphonal sphincters and to strong but short longitudinal fibres that do not extend beyond the siphonal bases ( Fig. 38A,B View Figure 38 ). The thick oral tentacles arise at the base of a velum and have two orders of ramifications. The prepharyngeal band forms a wide and deep dorsal V. The slit in the dorsal tubercule is in shape of a C opening anteriorly, with the end of the left horn curved in and the end of the right horn curved out ( Fig. 38C View Figure 38 ).
The short dorsal lamina increases in height posteriorly. The branchial sac has seven folds on each side. The infundibula are constituted of two spiral stigmata wound in opposite ways. The formula on the right side is:
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Molgula dione
Monniot, Claude 2002 |
Cynthia dione
Savigny JC 1816: 93 |