a eo 
' 
ON MOLLUSCA OF THE WEST COAST OF NORTH AMERICA. 639: 
Nutt. } Jew. | B. A. ||Smiths. Ins.| Ken. | Lord. |Swan.} Cooper. 
43. Macoma secta .......... D/D|C]} MIL.|—|—/]— D 
43 6, Oredulis: ..-.5..0%. Oo;—|— PO P}|—|— — 
44, —— indentata .......... =| | — —|-—|—- D 
45. yoldiformis ........ =—}=—} = — P|—|V D 
46. PRUE. se. we ea OD; D|OC}} VPOF} P| V}| V| MD 
47, ——inquinata .......... —|—|0 O P|—|V F 
47b. Pedentula.......... —j—'} — — —/;—|V — 
48. Ve CXPANSA......002- oa — P|—|— — 
49, —— inconspicua ........ Oo|;—|}— OF P.M Vie PM 
50. Angulus modestus ...... —};—|— — P|—j|;— “= 
506,——_ —— obtusus ...... —|—|/— D P|—/|V D 
51. variegatus.......... — a — —|—|V MI 
52. Gouldit. 7 me. . oso —)}—|— DL. | —|—]— D 
53. Mera salmonea ....| — | — | — EF —|—|V M 
54. Tellina Bodegensis ...... — |— | OF O —j|;—|V D 
55. Arcopagia lamellata..) — | — | — — —/}—|—-— D 
56. Cidalia subdiaphana...... =i i D —|—} — — 
57. Cooperella scintilleeformis .. — | — | — — —|—|— DI 
58. Lutricola alba .......... B+} By © — —|—|— DI 
43. Macoma secta,Conr.Hanl. Large,flat,rounded, glossy; winged behind ligament. 
43 6. 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. auct.+tersa, Gld. Large, beaked, twisted; mantle- 
bend touching arte scar in one valve. From Kamtschatka to S. Diego. 
care Lady Franklin, 76°, Belcher, 1826. 3 ft., mud, between tide-marks, 
ord. 
47, Macoma inquinata, Desh. P. Z.S. 1854, p.357, Like degraded nasuta; mantle- 
bend a little separated from scar in both valves. 
47 b. Macoma Pedentula, Brod. & Shy. 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. Scarcely differs from data, Desh. in B.M. 
Greenland. 
49, Macoma inconspicua, Br. & Sby.= Sang. Californiana, Cour. Probably =“ Fa- 
bricti= fragilis, Fabr.” in Mus. Cum. Like thin, flat solidula: pink; var. 
large, white. 8-15 fm. Lyall. 
50. Angulus modestus,n.s. (Subg. of Tellina.) Like tener, Say; but with callus 
between mantle-bend and scar. White. 
506. Angulus Pvar. obtusus. Inside like modestus; but beaks obtuse. 
51. Angulus variegatus, n.s. Shape of obtusus: no eallus; rayed with pink and 
yellow. 20-60fm.r. Cp, 
52. AngulusGouldii, Hanl. MS. in Mus. Cum. Small, white; ant. ventr. side swollen. 
53. Mera salmonea, n.s. (Scarcely differs from Angulus.) Small, subquadrate, 
lossy, salmon-tinted. Beach—20fm. 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, Gidalia subdiaphana, n.g.,n.8. Thin, swollen, shape of Kellia, ligament sur- 
gounding beaks: hinge with 5 bifid teeth (3-2); no laterals; large mantle- 
end. 
57. Cooperella scintilleformis, n.s. New subgenus of Gidalia. Cartilage semi- 
internal: only 1 tooth bifid. 
58. Lndricola alta, Conr. (Tellina). For this group (= Capsa, “ Bosc,” Add. non 
Lam.), scarcely agreeing with either Macoma or Serobicwaria, Blainville’s 
