This article explores a range of ethical issues that arise in community-based participatory research (CBPR), drawing on literature and examples from practice. The experience of CBPR practitioners adds further weight to the growing critique by many other social researchers of regulatory approaches to research ethics (which focus on rule following in accordance with research governance frameworks, codes of conduct and ethics review procedures). Yet, whilst many of the ethical challenges in CBPR are common to social research generally (informed consent, anonymity, issues of ownership of data and findings), the dynamic, complex and value-based nature of CBPR gives them particular prominence. There are also specific issues relating to the ethics of partnership working, collaboration, blurring of boundaries between researchers and researched, community rights, community conflict and democratic participation that are more frequently encountered in CBPR. Four practice examples are used to demonstrate this argument. These are taken from a young women's community allotment, a community organisation researching poverty, a youth peer research project and a museumbased digital storytelling project. The article concludes that current institutional ethical codes, guidelines and ethical review procedures are not particularly well-suited to CBPR, in that they adopt principle-based and regulatory approaches to ethics; whereas character-and relationshipbased approaches to ethics are also very important in CBPR, which is adopted by many researchers with a strong value commitment to social justice.

One hundred six species of Bryozoa collected from the northern Adriatic in the vicinity of Rovinj, Croatia, are distributed among the orders Ctenostomata (8 species), Cheilostomata (79 species), and Cyclostomata (19 species). Ctenostomes are underrepresented in the collections relative to the two orders with calcified colonies. Five of the cheilostome species are new: Hagiosynodos hadros n. sp., Schizomavella subsolana n. sp., Cellepora adriatica n. sp., Celleporina siphuncula n. sp., and Rhynchozoon revelatus n. sp. (previously referred to as Rhynchozoon sp. II Hayward). Seven species named by Heller (1867) are stabilized by selection of lectotypes (Beania hirtissima, Adeonella pallasii, Hagiosynodos kirchenpaueri, Exidmonea triforis, Crisia recurva) and neotypes (Mollia circumcincta, Schizomavella cornuta) from Heller's collection in the University of Innsbruck Institute of Zoology. Lectotypes are designated for the Adriatic species Hippoporina lineolifera (Hincks, 1886) and for Schizomavella mamillata (Hincks, 1880). Beania cylindrica (Hincks, 1886) and Schizoporella asymetrica (Calvet, 1927) are recognized as species rather than as subspecific units. The species-rich cheilostome genus Schizoporella Hincks, 1877, which contains some of the most widely known fouling bryozoans, is designated a nomen protectum. The species name Smittina cheilostoma (Manzoni, 1869) is preserved as established usage.

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