638 



report; — 1863. 



Family Pandoridee. 



27. Clidiophora punctata, n. g. (Type of genus =Pa»ci'oca elaviculata, P. Z. S. 1855, 



p. 228.) Teeth f , posterior long, -with ossicle. Conr. sp. ; like CI. trilmeata, 

 but teeth more divergent ; inside strongly punctate. 



28. Keivnerlia filosa, n. s. New subgenus of Pandora with ossicle : outer layer ra- 



diately grooved. Shell beaked. 



29. Kennerlia bicarinata, n. s. Not beaked ; 2 post, keels in convex valve. 40-60 



fm. r. Cp. Blay prove=P. bilirata, Oonr. 



Family Anatinides, 

 SO. Periphma argentaria, Conr. Hani. Large, subqiiadrate. 



31. Thracia curta, Oonr. Hani. Strong, subovate. 



32. Lyonsia Califomica, Conr. Hajil.+bracteata+nitida, Gld. Outline variable : often 



close to Atlantic X. Floridana : striated external layer fugacious. 



33. Entodesma saxicola, Baird. Subgenus of Lyonsia : animal nestling, irreo-ular. 



Close to E. cuneata, Ad. & Rve. Form protean : brittle, thick, lurid,°witli 

 enormous ossicle. Var. cylindracea has the form of Saxicava pholadis. 



34. Entodesma inflata, Cojir.=diaphana, Cpr. P. Z. S. 1855, p. 228. From Southern 



fauna. Like picta, but pale, without pinch. 



35. MytUimeria Nuttalli, Com-. Hani. ? Subgenus of Lyonsia : rounded, vsath spiral 



umbos. 



36. Plectodon scaher, a. g., n. s. Shape of Theora : dorsal margins twisted-in spirally 



inside umbos. Lateral teeth laminated, with internal cartilage hidden, ap- 

 pressed. 2 r. valves, 40-60 fm. Cp. 



Family Solenidai. 



37. Sohn sicarius, Gld. Otia. Nearly straight, rather short, truncated. 



Vb. Solen ? yai: rosaceus. Straight, narrower, longer, smaller ; glossy rosy. 



Family Solecurtidte. 



38. Solecurtus Califomianus, Com-. Hani. May be a var. of the Peruvian ?Dombeyi. 



Yellowish ash, with ventral parallel grooves. A Pvar. without grooves closely 

 resembles ffibbiis, 

 89. Sok'ci/rtus sabteres, Conr. Hani. Small, compact, with violet rays. 



40. Machaira patula, Dixon=5'. mavimus, Wooi=grandis, Gmel. = siliqua NuttalK 



?+lucida, Conr. (var. jun.) Asia. 



Family Tetlinida. 



41. Sviguinokria Nuttalli, Gonr.H9,n\. = Psammobia decora, lUs. Flat rounded 



42. Psummobia rubro-radiata, Nutt. Large : shape of vespertim : rayed with lilac 



124 



