268. ? Imperator serratus, n. s. Small, finely sculptured, base stellate, nucleus Plan- 



orboid : operc. Hat, with more whirls. 10-20 fm. = 266 or 267 jun. teste Cp. 



269. Leptonyx sanyuineus, Linn. n. g. Like Collonia, not umbilicate. Operc. with 



horny and shelly layers, many whirls, outside flattish, not ribbed, margin 

 broad. Species red 'or purple, lirate. Bch.-20 fm. Cp. 



270. Leptonyx bacula, u. s. Small, ashy, Ilelicina-shaped, nearly smooth. Bch. 



d. Cp. Genus=IIomalopoma, p/537 : nom. preoc. 



271. Liotia fenestrata, n. s. Small. Strongly ribbed each way. Bch.-40 fm. d. Cp. 



272. Liotia^ acuticostata, n. s. Small. Sharply keeled, without radiating sculpture. 



10-20 fin. Cp. 



273. Ethalia supravallata, n. s. Minute : with keel and furrow near suture. 

 2736. .Ethalia ?var. invallata. Without keel. 



274. Livona picoides, Old. Otia. Probably the remnant of an ancient colony of pica. 



275. Trochiscus Norrisii, Sby. Tank. Nucleus as in Solarium : perhaps a Probosci- 



difer, though pearly. 



276. Trochiscus convexus, n. &. Small, subturrited, whirls swollen : umbilicus with 



2 ribs, the outer crenated. 



277. Chlorostoma funebrale, A. Ad. P. Z. S. 1854, p. SI6=marginatum, Nutt. non 



Rve. Blackish, often puckered near suture. 

 2776. Chlorostoma funebrale, var. subapertum, with umbilical pit. 



278. Chlorostoma gallina, Fbs. P. Z. S. 1850, p. 271. Olive, dashed with purple. 



Var. pyriformis, Old., umbilicus partly or wholly open. 



279. CJilorostoma brunneum, Phil. Auburn : finely striate : Gibbuloid aspect. The 



young (teste Cp.) has a basal rib. 



280. Chlorostoma Pfeifferi, Phil. Like brunneum : outside Ziziphinoid : umbilicus 



keeled. 



281. Chlorostoma aureotinctum, Fbs. P. Z. S. 1850, p. 271 =nigerrimum, Gmel. ? Mus. 



Cum. Gibbuloid : with distant grooves and fine sculpture ; mouth orange- 

 spotted. 



282. Omphalius fuscescens, Phil. Almost identical with liyulatus, Maz. Cat. no. 293. 



283. Calliostoma canaliculatum, Mart.=6fo/<Y/m/rw. Large, with strong grooves. 



284. Calliostoma costatum, Mart.=/?/osww, &c. Smaller, swollen, reddish j finely 



ribbed. 8-15 fm. Lyall 



285. Calliostoma annulatum, Mart.=ftVr/iw<f/w. Large, granular, stained with violet, 



286. Calliostoma variegatum, n. 8. Small, more conical; nodules more distant; white 



on rosy ground'. 



