taxonID	type	description	language	source
039587DB4378FFF4FF51F96AFABDBF36.taxon	diagnosis	Diagnosis (emended from Manconi & Pronzato, 2002) Potamolepidae with encrusting growth form up to some metres in diameter. Stony hard, fragile consistency. Spongin scanty except for the basal spongin plate and gemmular theca. No special ectosomal skeleton except for spicular tufts supporting conules. Choanosomal skeleton irregularly alveolate with paucispicular tracts, sometimes with ascending fibres towards the surface. Megascleres abruptly pointed oxeas to strongyles from smooth to ornamented by variably dense short spines / tubercles. Microscleres typically absent. Gemmules at the sponge base strictly adhering to the basal spongin plate, sometime free in the basal portion also in layers. Gemmular theca bi- to tri-layered with apparently absent to scarcely developed pneumatic layer of fibrous, not chambered spongin. Foramen not always evident. Gemmuloscleres tangentially arranged, elongate to ovoid oxeas to strongyles, variably ornamented to entirely smooth.	en	Manconi, Renata, Ruengsawang, Nisit, Ledda, Fabio D., Hanjavanit, Chutima, Sangpradub, Narumon (2012): Biodiversity assessment in the Lower Mekong basin: First record of the genus Oncosclera (Porifera: Spongillina: Potamolepidae) from the Oriental Region. Zootaxa 3544: 41-51
039587DB4379FFF4FF51FE92FD13BA13.taxon	description	Figures 1 – 4; Table 1	en	Manconi, Renata, Ruengsawang, Nisit, Ledda, Fabio D., Hanjavanit, Chutima, Sangpradub, Narumon (2012): Biodiversity assessment in the Lower Mekong basin: First record of the genus Oncosclera (Porifera: Spongillina: Potamolepidae) from the Oriental Region. Zootaxa 3544: 41-51
039587DB4379FFF4FF51FE92FD13BA13.taxon	materials_examined	Materials. Holotype MSNG 56534 a, Ban Huai Sai (16 ˚ 46 ʹ 20.40 ˝ N, 102 ˚ 42 ʹ 48.22 ˝ E) type locality, Pong River, Thailand, 14. vi. 2008, encrusting on submerged bamboo stick in contact with the paratype, leg. Nisit Ruengsawang (schizotype DTRG FW 719). Paratype MSNG 56534 b, associated with the holotype on submerged bamboo stick (Fig. 2, arrow), Ban Huai Sai (16 ˚ 46 ʹ 20.40 ˝ N, 102 ˚ 42 ʹ 48.22 ˝ E), Pong River, Thailand, 14. vi. 2008, leg. Nisit Ruengsawang. Topotype OS DP 2, Ban Huai Sai (16 ˚ 46 ʹ 20.40 ˝ N, 102 ˚ 42 ʹ 48.22 ˝ E), type locality, Pong River, Thailand, 20. viii. 2010, leg. Nisit Ruengsawang, 1 specimen on PVC net. Comparative materials. O. jewelli, Rio Tainhas, São Francisco de Paula, Rio Grande do Sul, 10. ix. 1960, C. Volkmer-Ribeiro det. (Holotype MNRJ 001, schizotype DTRG FW 547); O. jewelli, Rio Tainhas, São Francisco de Paula, Rio Grande do Sul, Brazil, C. Volkmer leg. det., 17. i. 1971 (topotype BMNH 1978.12.12.12, ex-FZBRS 124, schizotype DTRG FW 410); O. jewelli, FZBRS MCN 1080, River Teinhesves, 11. i. 1983 (fragment FW 487); O. macrospiculata Niger, Timbuktu, on shells of Aetheria sp., 1931, A. Chevalier leg., Topsent det. (MNHN DT 2846, fragment DTRG FW 508 ab); O. rousseletii, Zambezi River above Victoria Falls (holotype BMNH 06.2.28. IC, 13. IIIC, alcohol, schizotype DTRG FW 390); O. schubotzi, Aruwimi River near Banalia, on Aetheria elliptica, v. 1908, Schubotz leg., Weltner 1919 det. (holotype ZMB 3716 a, schizotype DTRG FW 539); O. schubotzi, Aruwimi River near Banalia, v. 1908, Schubotz leg., Weltner 1919 det. (paratype MRAC 205 ex-ZMB 3716, dry, schizotype DTRG FW 471); O. gilsoni, River Waidina, Viti Levu, Fiji Islands, E. Topsent det., 22. x. 1897 (Type IRScNB POR. 048, schizotype DTRG FW 361).	en	Manconi, Renata, Ruengsawang, Nisit, Ledda, Fabio D., Hanjavanit, Chutima, Sangpradub, Narumon (2012): Biodiversity assessment in the Lower Mekong basin: First record of the genus Oncosclera (Porifera: Spongillina: Potamolepidae) from the Oriental Region. Zootaxa 3544: 41-51
