Ascidonia quasipusilla (Chace, 1972)

(Fig. 3)

Ascidonia quasipusilla — Brinkmann & Fransen 2016: 438, tab. 1 (Curaçao); Horká et al. 2016: supplementary table S1 (Curaçao).

Material examined. Curaçao: RMNH. CRUS.D.57050: 1 ovigerous female; stn COA. 01, Hilton Reef, 12°07′18.44″N 68°58′10.23″W, 07.xi.2013, depth 1 m, snorkeling, in solitary ascidian, red-yellow inside, inner surface of sac purple, Pyura torpida (Sluiter, 1898), collected by C.H.J.M. Fransen (photo COA.01 220–231) .

Ecology. Endosymbiont of solitary ascidians: P. torpida, Pyura spec. (cf. Fransen 2002); Microcosmus exasperatus Heller, 1878, Herdmania spec. (Fransen 2006).

Distribution. Known from scattered shallow water localities in the tropical West Atlantic: Antigua (Chace 1972); Martinique (Fransen 2002); Guadeloupe (Fransen 2006); and from Mauritania in the East Atlantic (Fransen 2002).