ON MOIXUSCA OF THE WEST CO.\ST OF NORTH AMERICA. 



G33 



287. 



Calliostoma supragranumm, n. s. Swollen, with shaip ribs ; posterior 1-4 



granular. 

 Catlioitoma aemmitlatinn, n. s. Very swollen : painted like eximium : with 2 



principal and 2 smaller rows of gmnules. 

 Culliosioma splendens, n. s. Omnge-chestnut, with fleshy nacre ; small, rather 



flattened, base glossy. 6-40 tm. Cp. 

 Phorcus pulliijo, Mart.+wj«c«</o«iM, A. Ad. =:euryomphalus, Jon&s-\-mnrci(Ii(s, 

 Gld. (Subgenus of Gibbuli, with expanded, rounded umbilicus, and Hut 

 whirls ; sometimes obsoletely ribbed. 

 Gibbula parcipicta, n. 8. Like strong growth of Mai g. lirulata, var. 

 292. Gibbula optabilis, n. s. Wider : decussated between ribs : 2 spiral lines insida 

 umbilicus. 



Shaped like Montagui: with rounded spiral riblets. 

 Small, scarcely sculptured, with spiral brown pen- 



288. 

 289. 

 290. 



291. 



293. 

 294 



Gibbula funiculata, n. s. 

 Gibbula succincta, n. s. 

 cillings. 



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



swelling of columella. 



296. Solnriella peramnbilis, n. s. Subgenus of Margarita, with open, crenated um- 



bilicus. Species most ornate, with delicate sculpture. Umbilicus with 1 

 internal spiral lines, crossed by lirulse : operculum sculptured. Like Mi/ioli^ 

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



297. Margarita cidaris, A. Ad. n. s. Large, knobby, like thin Turcica, with sinifla 



pillar and small umbilicus. 



298. Margarita pupilla, Gld. E.E.=cn/os/omrt, A. Ad. Strong, with sharp ribs, dts- 



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

 298 b. Margarita ? var. sahnonea. Between jmpiUa and undulata : salmon-tin:ed, 

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



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



8-20 fm. Cp. 



800. Margarita inflata, n. s. Thin, whirls very swollen ; sculpture very fine ; spial 

 hollow inside keeled umbilicus. 



SOI. Margarita lirulata, n. s. Small : operc. smooth : 2 sharp principal riblets on 

 spire : outline variable. Var. sttbelerata, raised, livid : var. obsolefn, sculp- 

 ture evanescent : ':' var. cornea, very tall, with intercalary ribs, like G. parctm 

 picta. 

 Margarita Vahlii, Miill. Raised, smooth : operc. with spiral rib. 



302, 

 303, 



Margarita temtisnifpfa, ? n. s. Like obsoleta, but operc. ribbed 



304. Maryarita heliciitu, Mout. 



Like the Fiuioai'k ahelld. 

 139 



Qii'cuiuborcal. 



