SCALARIA.— Plate XI. 



Species So. (Mas. Brit.) 



ScALAniA EsCHRiCHTi. Scd. Ustd pi/ratindatd, jiaUide 

 ijriseo-fulvd ; spird elevatd, acuminata, anfractibus 

 octo, vix convexis, ultimo magno, ventricoso, antice 

 anijulato, varidhus nullis, aperturd uuKjitd, vtrinque 

 acuminaid; labia externa tenui. 



KscHFtiCHT's ScALARiA. Shell pyramidal, pale grey- 

 fulvous ; spire elevated, acuminated, whorls eight, 

 scarcely convex, last large, ventricose, anteriorly 

 angular, varices none, aperture large, acuminated 

 at each end ; outer lip thin. 



HOLHOLI. ? 



Hab. Greenland. 



Of a similar form to Sralaria tjraimlosa, but much 

 lighter in texture and less compact. 



Species 84. (Fig. a, b, Mus. Brit.) 



SCALARIA DiADEMA. Sca. testd soUdd, brevi, ventricosd, 

 pallide fulvd, vel subcai-uled, Iceviyaid; spird brevi, 

 (ibtusd, scalatd ; anfractibus qiiadratis, superni 

 (ingulatis, infra costd conspiaid earinatis, coslis 

 rotundis, crassis, longitudinalibus prape suluram 

 nodosis sculptii, ultimo nonnunquam planulato, 

 rostis langitudinaUbus nullis. 



The diadem Scalaria. Shell solid, short, ventricose, 

 pale fulvous or greyish, smooth ; spire short, 

 obtuse, ladder-like ; whorls quadrate, angular 

 above, keeled with a conspicuous rib below, 

 j^culptured with rounded, thick, longitudinal ribs 

 nodose near the suture, the last sometimes flattened, 

 without longitudinal ribs. 



SdWERBY. Thesaurus Conchyliorum, Species 89, fig. 

 121, 122. 



J[fib. St. James's Island, Gallapagos. 



Species 85. (Mus. Brit.) 



Scalaria optabilis. Sca. testd parvd, brevissimd, ven- 

 tricosd, albidd, inter varices regulanter piallide 

 bimaculatd ; spird brevi, anfractibus paucis, ultimo 

 anfractu ventricoso, varicibus rotundia, (pgiia/ibus, 

 subdistantihis ; aperturd suhovatd. 



The desirable Scalarla. Shell small, very short, 

 ventricose, whitish, with two pale regularly placed 

 spots between the varices ; spire short, whorls few, 

 last whorl ventricose, varices rounded, equal, 

 rather distant ; aperture subovate. 



A. Adams. Proc. Zool. Soc. 



Uah. — ? 



A remarkable jiretty little species. 



(.Species 8G. Mus. Brit.) 



Scalaria casta. Sca. testd parvd, acuminatd, albd ; 

 anfractibus octo, moderate convexis, suturd dis- 

 tinctd ; varicibus nnmerosis, inceqiialibus, nonmdlis 

 crOtSsiitscuUs, ad suturam subnndosis ; aperturd 

 ovald. 



The chaste Scalaria. Shell small, acuminated, white ; 

 whorls eight, moderately convex, suture distinct ; 

 varices numerous, unequal, some rather thick, 

 slightly nodose at the suture ; aperture rather 

 oval. 



A. Adams. Proc. Zool. Soc, 



Hab. Japan, 



In appearance rather resembling Scalaria Philippi- 

 narum, but the varices are much more numerous and 

 some of them laminar. 



