ox >rnLruscA or the west coast of xorth amekica. 



GCD 



43. Macoma secta, Conr. Hani. Large, flat, rounded, glossy; winged behind ligament. 

 43 b. Macoma var. eclulis, Nutt. Northern form, le.ss transverse ; texture dull. 



44. Macoma indentata, n. s. Like secta, jun., but beaked, indented, and ventrallj 



produced. 



45. Macoma yoldiformis, n. s. Small, white, glossy, very transverse ; ligament-area 



scooped-out. 



46. Macoma nasuta, Conr. &\\ct.-\-tersa, Gld. Large, beaked, twisted; mantle- 



bend touching opposite scar in one vah'e. From Kamtschatka to S. Diego. 

 Cape Lady Franklin, 76°, Belcher, 1826. 3 ft., mud, between tide-marks, 

 Lord. 



47. Macoma inquinata, Desh. P. Z. S. 1854, p. 357. Like degraded nasuta ; mantle- 



bend a little separated from scar in both valves. 

 47 6. Macoma ? edentula, Brod. & Sby. jun. ; or an abnormal var. of inquinata. 



48. Macoma ?var. e.rpanm. Scars like lata and calcarea in Mus. Cum., but teeth 



not bifid, veiy thin, glossy. Scarcely differs from lata, Desh. in B. M. 

 Greenland. 



49. Macotna inconspicua, Br. & Sby. = San(j. Californiana, Conr. Probably = " Fa- 



bricii=fra(/ilis, Fabr." in Mus. Cum. Like thin, flat solidula: pink; var. 

 large, white. 8-15 fm. Lyall. 



50. Anr/ulus modestus, n. s. (Subg. of Tellina.) Like tener, Say ; but with callus 



between mantle-bend and scar. White. 

 50 6. Angidiis ?var. obtusus. Inside like modestus ; but beaks obtuse. 



51. Angulus varieqatus, n. s. Shape of obtusus : no callus ; rayed with pink and 



yellow. 20-60 fm. r. Cp. 



52. ^«^«Z/«Go?fWiV, Hani. MS. inMus. Cum. Small, white; ant. ventr. side swollen. 



53. Mcera salmonea, n. s. (Scarcely differs from Angulus.) Small, subquadrate, 



glossy, salmon-tinted. Beach-20 fm. Cp. 



54. Tellina Bodegensis, Hinds, Voy. Sulph. Large, strong, transverse, with con- 



centric grooves. 



55. Arcopagia lamellata, Maz. Cat. no. 58. One fine pair in shell washings. 



56. (Edalia subdiaphana, n. g., n. s. Thin, swollen, shape of Kellia, ligament sur- 



rounding beaks : hinge with 5 bitid teeth (3-2) ; no laterals ; large mantle- 

 bend. 



57. Cooperella scintillt^formis, n. s. New subgenus of CEdalia. Cai'tilage semi- 



internal : only 1 tooth bifid. 

 53. Lutricola aHa, Conr. (Tellina). For this group (= Capsa, "Bosc," Add. non 

 Lam.), scarcely agreeing -with either Macoma or Scrobicularia, Blainville'a 



125 



