Bl l-l \. 



,tr,n* fi/./n'ti, irif/i I,H mrrn*, f 

 or te.n rir*. 



'.I'll n r// n <ir i' ir 



S. \<II.K\I\. MM>S,.|I. I'l. '.Mi. li-. Jl."); |>l. HI. liu-. Hii. 117. 

 IJody ov.Mtc. rounded, smooth, ruther pointed behind; I'm- 



broad, thick, commencing nitlu-r behind the front cd^'e : :irm-> 

 elongate, unequal, order of len^ili t. :;.-_'. I. the cup- irlobnhir. 



with rin^s minutely toothed :ill around; lcnt:iciil;ir r|nl> with 

 \cr\ >m:dl dips in trn or t\\cl\c row-, with di>t:int. .-iciiti 1 teeth 

 on Jin- riniis. Shell o\:ite. oldon^. t nlxTciihirlv wi'iid<led. de- 

 |>iv-sed. ronn<h'd ;it the ends; with :i loim. >t r.-ii^ht . :ient e le:ik. 

 con\c\ l>ene:ith in IVoiit :ind eonc:i\c l>ehind. Length. 1 " inches. 



Indian Ocean; Java. 

 S. Kl.oN(,ATA. Fer. ;ilid Orl.. PI. IM . tili's. 4 IS. 4 I'.l. 



Aninuil nidoiown. Sliell very elongated, narrow, pointed in 

 front. enhirLivd hehind. :ind provided with n >vin--likr expnnsion 

 :ind :i lon^ nciite le:d< : rugose above, with :i me<li:il lon^it ndiiml 



rili: swollen beneath, li'ihbons in the middle. 



Red Sea. 

 S. SINOPK. (irnv. I'l. !)4. lio-. 44:;. 



Auiinnl unknown. Shell elongate. snllnn<-eoh)te : l>:ick smooth. 

 >liirhtlv concent i-ic;illv wrinklccl. with :i deep groove :don^ ench 

 ^id<- of the middle: rnthei 1 t:i]H'rin>- Mt the nppt-r p:i rt : :ipe\ im- 

 (ei'fect . 



China. 



DescriU-d from :in imperfect cult le-lone in |>rit . M us., with 

 reference ( don t.t full y) to S. Atiistralix, (^uov (not of ()rh.)_ 

 which I li^-urc. 



f f Shell oblong, posterior end expanded, produced, cartilaginous, not beaked, 

 convex beneath. SKPIKLLA. 



8. OENATA, li.-ni.ii-. IM. ( .1. fio-. \-l() ; pi. \\-l. liM>. 4-2\. 4'2'2. 



l)ody <>\;ite. t-loiiii'Mtrd. very smooth, brOWB, Spotted with white : 



fins very broad, broader l>ehind : e:ir> with hrond. thick e.i 



:inn> ^liort. thick. nne<|ii;d. length I. :;. L, 2, the rinii'> "f Hie cup> 

 oblique, smooth on the II.MITOW. :ind with short. iine(|ii:il teeth on 

 the lro:id e<lM V ; trnt.Mrlrs hinceol.Mt e. wit h very sm:dl. cle cup- 

 '!' e(|ii:d >i/e in ei^-lil or ten lines, with toothed rin^s. Shell 



