ON MOT.LUSCA OF THE WEST COAST OF NORTH AMERICA. 



653 



287. Calliostoma mpragranosum, n. s. Swollen, with sharp ribs ; posterior 1-4 



gi'anular. 



288. Calliostoma gemmulatum, n. s. Vei-y swollen : painted like eximium : with 2 



principal and 2 smaller rows of granules. 

 239. Calliostoma splendens, n. s. Orange-chestnut, with fleshy nacre ; small, rather 

 flattened, base glossy. 6-40 fm. Op. 



290. Phorcus puUigo, Mart.+maculosus, A. A.A..=euryomphalus, 3oxv&s-\-marcicIus, 



Gld. Subgenus of Gihhuli, -with expanded, rounded umbilicus, and flat 

 whirls ; sometimes obsoletely ribbed. 



291. Gihbula parcipicta, n. a. Like strong growth of Marg. lirulata, var. 



202. Cjfibbula optabilis, n. a. Wider: decussated between ribs : 2 spiral lines insida 



umbilicus. 

 20-3. Gibbulafumculata,n.a. Shaped like illfo»fo^Mj: with rounded spiral riblets. 

 294 Gihbula succincta, n. s. Small, scarcely sculptured, with spiral brown pen- 



cillings. 

 295. Gibbula lacunata, n. s. Very small, nearly smooth ; umbilicus hemmed-in bj 



swelling of columella. 

 ^296. Solariella peramabilis, n. s. Subgenus of Marganta, with open, crenated urn- 

 ' bilious. Species most ornate, with delicate sculptm'e. Umbilicus with 3 



internal spiral lines, crossed by lirulas : operculum sculptured. Like Mwolit 



aspecta, A. Ad. 40-120 fm. living, Cp. 



297. Margarita cidaris, A. Ad. n. s. Larg$, knobby, like thin Turcica, with simple 



pillar and small umbilicus. 



298. Margarita pupitta, Gld. 'li.E.=calostoma, A. Ad. Sti'ong, with sharp ribs, de- 



cussated between, and fleshy nacre. 8-15 fm. Lyall. 

 208 b. 'ilargarita ? var. salmonea. Between jnipilkt and undulata : salmon-tinted, 

 sculpture fine, not decussated : sutures not waved. 6-40 fm. Cp. 



299. Marijarita acuticostata, n.s. Small, painting clouded: 3 sharp ribs on epiie. 



8-20 fm. Op. 



300. Margarita injiata, n. s. Thin, whirls vexy swollen ; sculptiu'e verj' fine ; spiial 



hollow inside keeled umbilicus. 



301. Margarita lii-ulata, n. s. Small : operc. smooth : 2 sharp principal riblets on 



spire : outline variable, Var. subeleiiata, raised, livid : var. obsoleta, sculp- 

 ture evanescent : ? var. conica, very tall, with intercalary ribs, like G. parci' 

 picta. 



302. Margarita Vahlii, Moll. Raised, smooth : operc. with spiral rib. 



303. Margarita tenuisculpta, ? n. s. Like obsoleta, but operc. ribbed. 



304. Margarita heliciiia, Mont, like the Finmark sheU^. Cu-cumborcaL 



139 



