638 



REPORT— 18C3. 



Family Pandorid<e. 



27. CUdiopJtnra punctata, n. g'. (Type of gPiiiis = Prt«<fom claviculata, P. Z. S. 185.5, 



p. 228.) Teeth Jf, posterior lonrr, with o<.<icle. Conr. sp. ; Yike CI. trilineuta, 

 but teeth more diverjrent ; inside stronyly punctate. 



28. Kennerlia filom, n. s. New subjrenus of Pandora with ossicle : outer layer ra- 



diately <rrooved. Shell beaked. 



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



fin. r. Q^. May prove=P. bilirata, Conr. 



Family Anatinida. 



30. Periploma arffentaria, Conr. Ilanl. Larjre, subquadrate. 

 .31. Tiiracia eurta, Conr. Hani. Stronpr, subovate. 



32. Lyonmi Caiifornica. Conr. Ilanl. +6>"ffc^m<«-|-«jViV/rt,Gld. Outline variable : often 



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



33. Entndesma sa.vicola, Baird. Subgenus of Lyonsia : animal nestling, iri'Pgular. 



Close to E. cimeata, Ad. & Kve. Form protean : brittle, thick, luri'l, with 

 enormous ossicle. Var. cylindracea has the form of Sa.vicava pfioladis. 



34. Entodesma injlata, Conr. = diaphana, Cpr. P. Z. S. ISoo, p. 228. From Southern 



fauna. Like picta, but pale, without pinch. 



35. Mytilimeria yuttalli, Conr. Ilanl. ? Subgenus of Lyonsia : rounded, with spiral 



umbos. 

 30. Plectodon scnher,n. g., U.S. Shape of 7%eo/*a : dorsal margins twisted-in spirally 

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

 pressed. 2 r. valves, 40-00 fm. Cp. 



Family Solenidee, 



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



376. <So/e» ? var. roaacem. Straight, narrower, longer, smaller ; glossy, rosy. 



Family Solecurtidce. 



38. Solecurtus Californianm, Conr. Ilanl. May be a var. of the Peruvian ?Domheyt. 



Yellowish ash, with ventral parallel grooves, A ?var. without grooves closely 

 resembles yihbtis. 

 ,39. SoWurtm siibferes, Conr. Hani. Small, compact, with violet rays. 



40. Manhfera patida, Dixon siS. mavimtts, '\Vooi:= yrandis, Gmel. = Siliqua Xuttalli 



? -{-lucida, Conr. (var. jun.) Asia. 



Family Tellinida. 



41. Sin^uinohria NidiaUi, Conr. \l'\r\\. = Pi<immob{a decora, Hds. Flat, rounded. 



42. Piaiinivjbia rubro-radiata, Nutt. Large : 9hap3 of veiperLina : rayed with lilac 



124 



