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ON MOLLUSCA OF THE WEST COAST OF NORTH AMERICA. 643 
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. ||Smiths. Ins. Ken, | Lord./Swan.| Cooper. 
115. Lucina borealis .,...... a= 
116, Cryptodon flexuosus ....| — 
ine serricatus..4...... == 
118, Diplodonta orbella...... B 
119. Kellia Laperousii ...... = 
119. yar. Chironii 
120. 
121. 
We. WeASea. TODEA. . .niss ovine: 
128, Pythina rugifera........ 
124. Lepton meroéum ..,.... 
125. Tellimya tumida........ 
126. Pristes oblongus........ 
127, Mytilus Californianus. ...| MD 
128. BLES tieecne. 6 «sc eras» C 
1286. —— var. glomeratus ..| — 
129. Septifer bifurcatus ...... PC 
130. Modiola capax ........ B 
131. AT GHETOUEIS sys «| s viceaye' + — 
132, —— fornicata.......... — 
133. LE LUD, oq eG Oris B 
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115. Lucina borealis, Linn. auct.--acutilineata, Conr. Widely diffused, from Coral- 
line Crag. Philippines, teste Cuming, 380-120 fm. Cp. 
116. Cryptodon fleruosus, Mont. auct. Atlantic, circumpolar. Cat. Is. 120 fm. Cp. 
117. Cryptodon serricatus, n.s, Small, circular, flat; epidermis silken. ? Cat, Is. 
Cp. 120 fm. 
Family Diplodontide. 
118. Diplodonta orbella, Gld. Otia.=(Mysia) Spherella tumida, Cony. 
Family Kelliade. 
119, Kellia Laperousii, Desh. Woodw, ‘Typically large, strong, transverse. 
119}, Kellia var. Chironii. Thinner, less transverse, margins rounded. 
120. Kellia rotundata, nu. s. Larger, flatter, and less pearly than suborbicularis. 
Margin circular. { 
121. Kellia suborbicularis, Mont. auct. Maz. Cat. no. 153. N. Atlantic: W. Mexico. 
Exactly accords with British sp. 30-40 fm. Cp. 
122. Lasea rubra, Mont. auct. Maz. Cat. no. 154, N. Atlantic: W. Mexico. Exactly 
accords with British sp. 
123. Pythina rugifera, u.s. Large, thin, slightly indented ; teeth minute ; epidermis 
shagey. 
124, Lepton cite n.s. Small, shaped like Swnapta. 
125, Tellimya tumida, n.s. Between bidentata and substriata: ossicle minute. 
126. Pristes oblongus, u.g.,n.8, Like Tellimya, with long marginal teeth, serrated 
near hinge, 
Family Mytihde. 
127. Mytilus Californianus, Cour. 9 in. long: stained with sienna: obsoletely ribbed. 
128. Mytilus edulis, Linn. auct.=trossulus, Gld. Abundant on whole coast, with the 
usual Atlantic vars. Between tide-marks, Zord: also brown var, on float- 
ing stick, 
128 6, Mytilus ? var. glomeratus, Gld. Otia. Short, stumpy, solid, crowded. 
129. Septifer bifurcatus, Rve. Outside like Mytilus b. Cony. from Sandw. Is. 
130. Modiola capax, Cony. Maz. Cat. no. 170. From Southern fauna. 
131. Modiola modiolus, Linn, auct. Cireumboreal. 8-15 fm. jun. Lyall. 
182. Modiola fornicata, n.s. Short, swollen, like large M. marmorata ; but smooth, 
not crenated. 
133. Modiola recta, Cony. 6 in, long, thin, narrow, rhomboidal, Chaff-like hairs 
over glossy epidermis. : 
272 
