Mission statement The Boa and Python Specialist Group (BPSG) mission is to provide expert opinion and scien- tific advice to IUCN and other conservation organisations, government and non-govern- ment agencies, applicable to the conservation of boas and pythons and snakes in general. Projected impact for the 2017-2020 quadrennium By the end of 2020, we envision: (1) an improved knowledge of the trade of South- east Asian reptiles; (2) a change in the supply chain of skins from Southeast Asian reptiles due to a better interaction with traders and local governments; (3) a substantial advance in CITES provisions related to snake trade; (4) a better knowledge on the status of several threat- ened species but particularly of the Endangered Cropani’s Boa ( Corallus cropanii ); (5) a signif- icant advance in Red List assessments of the species in our remit; and (6) a more integrated and communicated group which will redound in more effective conservation actions worldwide. Targets for the 2017-2020 quadrennium Assess Red List: complete assessment of Boidae and Pythonidae species. Research activities: (1) develop a standard refer- ence for BPSG species taxonomy; (2) improve knowledge and status of Cropani’s Boa; (3) develop research programmes on priorities established under Southeast Asian Reptile Conservation Alliance (SARCA) cooperation. Plan Planning: develop BPSG Strategy Planning. Proposal development and funding: increase number of grants delivered. Network Capacity building: train two BPSG members in Red List assessments. Membership: increase BPSG membership in species’ range countries. Synergy: (1) keep participating in international forums (e.g. CITES); (2) attend Southeast Asian Reptile Conservation Alliance (SARCA) Steering Committee meetings. Communicate Communication: (1) increase frequency of Serpens newsletter to twice a year; (2) publish scientific and technical reports. Membership: improve communication with membership. Scientific meetings: organise the first BPSG global members meeting. Activities and results 2019 Assess Red List i. By the end of 2019, most of the species in our remit (ca. 200 species) were already assessed under the IUCN Global Reptile Assessment process, with the follow up of the BPSG Red List Authority Mark Auliya. A short list of 34 species with outstanding issues were moved forward and the full BPSG remit of species is estimated to be completed by early 2020. (KSR #1) Research activities i. Bruno Rocha continued with the project “Building a Conservation Strategy for the Cropani’s Boa ( Corallus cropanii )”. The main project activities in 2019 were public awareness and environmental education. Bruno expects that education and awareness will increase the probability of detecting new specimens of this elusive snake. (KSR #12) IUCN SSC Boa and Python Specialist Group Tomás Waller 2019 Report Chair Tomás Waller (1) Red List Authority Coordinator Mark Auliya (2) Location/Affiliation (1) Fundación Biodiversidad, Buenos Aires, Argentina (2) Department of Conservation Biology Helm- holtz Centre for Environmental Research – UFZ, Germany; Zoologisches Forschungsmuseum Alexander Koenig, Adenauerallee 160, 53113 Bonn, Germany Number of members 91 Social networks Facebook: IUCN Boa & Python Specialist Group