S C A L A R I A. 



Species 37. (Mus. Brit.) 



ScALAlUA TENUIS. Scci. tcstil alba, teiiui, aiKjiistd ; spini 

 aitemiatd, anfraclibus brevihus, varicibus numerosis, 

 laminalis, tenuibus, obliquis, ad suturam migiilathn 

 aeulealis ; apertwd pai-vd, kibio (xtenio propi- 

 suturam angulattm aculeato. 



Thk THIN ScALARiA. Shell white, til ill, luirrow ; spire 

 tapering, whorls short, varices numerous, laminated, 

 thin, oblique, angularly aculeatcd at the suture; 

 aperture small, outer lip angularly aculeated near 

 the suture. 



SowEP.nY. Proc. Zool. Soe., 1811. 



llab. West Indies. 



Species 38. (Mui^. lirit.) 



ScALARiA LAXATA. Sca. testd teiiui, laivi, albd, anfrac 

 tibus multd disjunctis, varicibus numerosis, tenuibus 

 vix regularibus, laminatis, simplicibus ; aperture 

 ovali. 



The loosened Scalakia. Shell tliin, smooth, white 

 whorls much disunited, varices numerous, thin 

 scarcely regular, laminated, simple ; apertun 



SowERiiY. Proc. Zool. Soc, 1844. 

 Hob. Isl. Luzon, Philippines. 



Species 39. (.Mus. Brit.) 



Scalaria replicata. jSca. testa bred, albd, aiifractibus 

 sex, pauld disjunctis ; varicibus subdistantibus, 

 laminatis, replicatis, prope suturam in lobam 

 elevatam expansis ; aperturd mac/nd, subquadratd, 

 margine subexpanso. 



The refolbed Scalaria. Shell short, white, whorls 

 six, a little disunited ; varices rather distant, 

 laminated, folded back, expanded into an elevated 



lobe near the suture; aperture large, suliquadrate. 



margin rather expanded. 

 SowERBY. Proc. Zool. Soc, 1844. 

 Hub. Lord Hood's Island. 



A well cliaracterizcd shell with varices curiously 

 Iblded back upon themselves. 



Species 40. (Fig. a, b, Mus. Brit.) 



Si'ai.aria Pallasii. Sca. testd pt/ramidatd, perforata, 

 inter varices pallide fulvd, vel fused ; anfractihus 

 septem, pauld disjunctis ; varicibus laminatis, pro- 

 minentihus, distantibus, rrgiilariter sequenfibiis, 

 prop!' suturam obtuse augulatis. 



Pallas's Scai.aima. Shell ])yramidal, perforated, pale 

 fulvous, or brown between the varices ; whorls 

 seven, a little disunited ; varices laminar, pro- 

 minent, distant, following in regular sequence, 

 obtu.sely angular near the suture. 



KiENER. Icon. 



Scalaria principalis, Nonnul. 



Hah. C'atannan, Pliilippines. 



I shall describe further on in the monogi-aph the 

 larger shell, hitherto included as a distinct species, 

 under the name of S. neglecta. It has a larger whorl 

 and more numerous varices, with their angular points 

 more distinct. 



Species 41. (Fig. a, b, Mus. Brit.) 



Scalaria iiyalina. Sca. testd pyramidatd, albd, lari. 

 tenui, pel/ucidd; anfractibus muiti) disjunctis: 

 varicibus distantibus, laqueatis ; apierturd rotundaid, 

 ab ultimo anfractu separata, margine laqueato. 



The in-ALiNE Scalaria. Shell pyramidal, white, 

 smooth, tliin, pellucid; whorls much disunited. 



August, 1873. 



