1. Abercrombie M (1941) Estimation of nuclear populations from microtomic sections. Anat Rec 94: 239?247
2. Ayling AL (1980) Patterns of sexuality, asexual reproduction and recruitment in some subtidal marine Demospongiae. Biol Bull mar biol Lab, Woods Hole 158: 271?282
3. Battershill CN, Bergquist PA (1990) The influence of storms on asexual reproduction, recruitment, and survivorship of sponges. In: Rutzler K (ed) New perspectives in sponge biology. Smithsonian Institution Press, Washington, D. C., pp 397?403
4. Bergquist PR, Kelly-Borges M (1991) An evaluation of the genus Tethya (Porifera: Demospongiae: Hadromerida) with descriptions of new species from the Southwest Pacific. The Beagle, Records of the Northern Territory Museum of Arts and Sciences 8 (1): 37?72
5. Bergquist PR, Sinclair ME, Hogg JJ (1970) Adaptation to intertidal exstence: reproductive cycles and larval behaviour in Demospongiae. Symp zool Soc Lond 25: 247?271