58 Pholas Silicula p. 6 



59 Panopaea Zelanica p. 18 



PLATE X. 



1 Thracia Curta p. 22 



2 Mactra Elongata p. 33 



3 Mesodesma Solenoides 



p. 39 



4 Solen Californianus p. 16 



5 Cytherea Trimaculata 



p. 101 



6 Myodora Crassa (Anatina 



C.) p. 25 



7 Solen Novaculina p. 16 



8 Solenella Norrissii p. 17 



9 Myodora Pandoriformis 



(Anatina P.) p. 25 



10 Lyonsia Hyalina (Osteodes- 



ma H.) p. 24 



11 Periploma Argeiitariap.21 



12 Anatina Papyracea p. 23 



13 Myodora Brevis (Anatina 



B.)p. 24 



14 Lyonsia Cuneata p. 25 



15 Anatina Elongata p. 24 



16 Mya Semistriata p. 20 



17 Glauconorae Chinensis 



p. 17 



18 Solen Medius p. 15 



19 Aspergillum Agglutinans 



p. 2 



20 Mactra Rufescens p. 30 



21 Clavagella Balanorum p. 2 



22 Gnathodon Cuneatus p. 35 



23 Mactra Ovalina p. 31 



24 Glauconome Rugosa app^ 



25 Mulinla Lateralis p, 31 



26 Lutraria Ensis p. 27 



27 Mactra Alba p. 31 



28 Mactra Vitrea p. 33 



29 Mulinia Donaciformisp. 34 



30 SoIenThuelchap. 13 



31 Mulinia Bicolor p.3t 



32 Periploma Trapezoides 



(Anatina T.) p. 20 



33 Periploma Planiuscula 



p. 21 



