Some ascidians from Indonesian marine lakes (Raja Ampat Islands, West Papua) Author Monniot, Françoise text Zootaxa 2009 2106 13 40 journal article 10.5281/zenodo.274849 eecca8e3-6355-42e3-be72-51494ecadcb8 1175-5326 274849 Didemnum ahu Monniot & Monniot, 1987 ( Figures 1A , 2 ) Didemnum ahu Monniot C. & Monniot F., 1987 : 25 , fig. 6 A,B,C, pl. 1E; Monniot F. & Monniot C., 2008 : 803 and synonymy. Material. Indonesia . West Papua , Gam Island, Danau Hidden Gam marine lake, 00°26.959’S – 130°30.071’E , 0m, 10/XII/2007 , coll. L.J. Bell and L.E. Martin, DHG 0 50 ( MNHN A2 DID C 588); West Papua ,Gam Island, Danau Nine Gam marine lake, 00°26.970’S – 130°29.149’E , 0.5m , 03/XII/2007 , coll. L.J. Bell and L.E. Martin, DNG 0 54 ( MNHN A2 DID C 586). The very thin colonies ( Fig. 1A ) are white with small zooids and small larvae of 0.3mm for the trunk. The spicules are irregular in size and shape, of 30µm for the largest; the fibrous structure of the rays obviously appears. The species was also previously recorded from a marine lake in Palau ( Monniot & Monniot 2008 ).