PLATE VII. 



Fig. I. Acts serrata n. sp. Natural size. \a, part of branch X 5- 



Fig. 2. Acis squamata n. sp. Natural size. 2 a, part of branch X 5- 



Fig. 3. Acis solorensis n. sp. Natural size. 3«, part of branch X 5- 



Fig. 4. Bebryce thomsoni n. sp. Natural size. 417, part of branch X 5- 



