PLATE XXX. 



FIGS. 

 1 and 2. Cynthia claudicans Sav. (p. 78) 1. Test: natural 



size. 2. Branchial siphon and aperture : twice 



natural size. 

 3. Cynthia sqnamulosa Alder, (p. 81) Test: natural 



size. 

 4 and 5. Cynthia ovata sp. nov. (p. 84) 4. Test, to show 



position only, adhering to shell : two-thirds natural 



size. 5. Test : one and a third natural size. 

 6 and 7. Cynthia morus Forbes, (p. 86) 6. Test : natural 



size. 7. Mantle : natural size. 

 8 and 9. Cynthia tessellata Forbes, (p. 89) 8. Test : twice 



natural size. 9. Portion of test, showing form 



of tessellations : a little further enlarged. 

 10. Cynthia echinata (Linn.) Alder, (p. 93) Test : one 



and a third natural size. 



