﻿S P II /E K 1 U M 



Plate V. 



riute V. (iV[ns. Brit.) 

 Fig. 17 d Splia^riiuu conienm, var. //f;rr.sr»')(.<, JIf 



gillivTay v, PI. II. 

 Fig. b. Sphierium lacnstre. Sec Pliite I. 



Species 41. (Mas. Brit.) 



SpH.BRIUM INCONSPICUUM. ^7</i. /.■v7'< sfnirifni-ini, 

 Jlavidn.cariied, siipervr .•nirrini',!, I,rn'(/ii'd, ah/iqiid, 

 inceqiiUaterali ; latere aiUir.o Imu-i, ulili.(jiic Iniuciita; 

 latere pnstico subexpanso, margine postico veutruli 

 oblique producto, mnrijine dorsal!, elevalo ; margine 

 vciiiridi ri'i-tiiisriihi, lalo; vmhonibus produdis, 

 niil„(fin,iiinti;s. 



The ixco.Nsi'ii'niis Si'ii.KitiiM. Shell liatchet-shaped, 

 yellowisli-flesli, amber above, smootli, oblique, 

 inequilateral ; anterior side short, obliquely 

 truncated ; posterior side a little expanded ; 

 postero- ventral margin obliquely produced, dorsal 

 margin raised ; venti-al margin ratlicr straight, 

 broad ; umboes jiroduced, a little acuminated. 



Prime. Proc. Zool. Soc. Bost. 



Hab. Asia Minor. 



Species 42. (Mus. Brit.) 



SPH.ERIUM BOENEENSE. Sjdi. (r<l,! iihhni.j.'i . frrriiiji iiiji'i, 

 tenuiter striata, fitsco-'ihsniro ii mjulali ,:i nificiihild : 

 lat.i-r aiifin, ^iihrntii ,ulo : hit,,;: pv^ti,;, nhUqilO, 

 siil.qitndnil.,, n<.u:j:,ir rr„t,:ii; rrrlin.-^rnh' ; ,nar,jim 

 dorsal: iitmiqiir i„n,l,', .l.rh'ri. 



TiiK BoENEAN SPHiEiauM. Shell oblong, ferruginous, 

 finely striated, angularly spotted with dull 

 brown ; anterior side rather round ; posterior 

 side oblique, rather square, ventral mai'gin rather 

 straight, dorsal margin on each side a little 

 sloped. 



SoWERHY. 



Hah. Borneo. 



h,>.<; latr 

 paiilo uwi 



iH.<nd.> 



lair 



Inlrrai: 



obll.i.r ,.ro,l„rl„, u 

 oUiqui- suhiniiicafa: t,n,r',!ur r.'n. 

 ehiiiijato; ■mufglne dur.-iaJi ■utriin/iu: ncln, hrcri. 

 The elongated Spil^jeium. Shell large, oblong, 

 tumid, subovato, greenish, horny grey towards 

 the apex ; umboes obtuse, depressed, nearly 

 central ; anterior side rather siiort ; posterior 

 side a little more obliquely produced, lateral 

 margin obliquely slightly truncated ; vcntrnl 

 margin rather straight, elongated; dorsal iiiavi.i'in 

 on each side straight, short. 



SOWEEBV. 



Hah. ? 



We have no information respecting the locality of 

 this rather handsome species, of which the three dm> 

 specimens in our possession are the only ones we 

 have seen. 



Species 44. (/, a., h, Mus. Brit. I 



SpH.ERIUM ]\IoR-\10XICUM. Sidi. Ir.<l,! snli'ih!. xilhinnlil. 



niliU /'■!■:■ h<r:,jah',. ulf.i :<„l.,r,j„ih,trral,\ r, „■„>',!, 

 flL.ru./.isnahl rl Inu'.lt,; : niti).< ,:r,;,lr,!,j\,sr;„l.;: 

 laln-lhas ,Miisi.-<siaw tniucalis; ,n,ih,uiibn.-i rataadis 

 iihtiisis; margine dursali nlrliiqiie brevi, vix 

 declivi. 



The Moe.mon's Spu.bkium. Shell solid, rather s(|uare, 

 nearly smooth, high, subequilateral, horny, 

 banded and lineated with brown ; bluish within, 

 banded ; sides very obtusely truncated ; umboes 

 rounded, obtuse, dorsal margin short on eai-li 

 side, scarcely sloped. 



Sowerby. 



Hab. Great Salt Lake. 



Broader and more solid than the European Spli. 



rivularis. 



.>pc 



. (Mns. So\N 



5PU-ERIUM ELOXOATir.M. Sjdi. /fx/'i 

 tuntidd, stibocutd, aubciridi, c<:t: 



Species 45. (Fig. a, h. Mus. Brit . 



SpII.ERIUM CaL'EXSE. Sjjh. Ir.<la SHh.piadnil 

 l,un;dd.fa-rii.j<'„r,:, iiili.s .iihrim.-^d, /agri 

 bnnil.n^ rulitndls; hilvrc autioj hnwi, 



