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

 43 b. Macoma var. edulis, Nutt. Northern form, less transverse ; texture dull. 



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



produced. 



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



scooped-out. 



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



bend touching- opposite scar in one valve. From Kamtschatka to S. Die-zo. 

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

 Lord. 



47. Macoma inquinata, Desh. P. 7*. S. 1854, p. 357. Like degraded nasuta ; mantle- 



bend a little separated from scar in both valves. 

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



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



not bifid, very thin, glossy. 

 Greenland. 



Scarcely differs from lata, Desh. in B. M. 



49. Macoma inconspicua, Br. & Sby. = Sang. Calif orniana, Conr. Probably = " Fa- 

 bricii=fragilis, Fabr." in Mus. Cum. Like 



thin, flat solidula : pink ; var. 

 Like tener, Say; but with callus 



large, white. 8-15 fm. Lyall. 

 60. Angulus modestus, n. s. (Subg. of Tellina.) 



between mantle-bend and scar. "White. 

 50 b. Angulus ?var. obtusus. Inside like modestus ; but beaks obtuse. 



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



yellow. 20-60 fm. r. Cp. 



52. Angulus Gouldii, Hani. MS. in Mus. 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. 68. 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 bifid teeth (3-2) ; no laterals ; large mantle- 

 bend. 



57. Cooperella scintillceformis, n. s. New subgenus of (Edalia. Cartilage semi- 



internal : only 1 tooth bifid. 



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

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



125 



