M A G I L L S. 



Species G. (Fig. a, >', Mus. Scott.) 



Magilus striatus. Mag. testd bulbifomii, mUurhiiMtd, 

 lemii, vndulatim striatii, in/rd, subc(intrart<'i, spini 

 bred ; anfractibus dvobiis, obtusis, sutiuv obaoletd ; 

 aperturd magnd, subpi/rifonui, labia intevno fix 

 reflexo, columelld obliqud, tortuosd, untice pro- 

 ductd ; labia externa in medio ampio, antice propi' 

 (•analem subcontracto. 



The STitiATED Magilus. Shell bull>sliapeil, subturbi- 

 uate, tliin, undulately striated, slightly coutracted 

 below, spire short; whorls two, obtuse, suture 

 obsolete ; aperture large, somewhat pyriform, 

 inner lip scarcely reflected, columella obliijue, 

 tortuous, anteriorly produced ; outer li]i wide in 

 the middle, anteriorly contracted near the canal. 



Rih'ELL (Leptoconchus). Trans. Zool. Soc, vol. i. p. 25'.), 

 pi. 35, figs. 9, 10. 



Magilus Peuonii? Lauarck. 



Hab. Mauritius. 



This shell is supposed to differ fntm the similarly 

 shaped young of JIagilus antiquus in the alisence of a 

 reflected inner lip. This may, however, result from 

 the thickening of the lip being later in commencing. 

 There is so much uncertainty respecting Lamarck's 

 Magilus Peronii, that it is better to adopt the specific 

 name given by the describer of the genus, Lepto- 

 conchus. 



Spec 



b, Mus. r.rir.) 



Magilus ellipticus. Mag. testa lemii, ocatd, angiistd 

 squamoso-stiiatd ; infra medium spiraliter sub- 

 costatd, spird ccelatd ; apevturd magnd ovutd, medii 

 laid, antice oblique acutninatd ; coliimethl planl 

 usculd, valde arcuald ; labia e.rierna .«i//)r</ .<pii-(iii 

 elerato, pnqx- canalcm leviier e.ccavato, ad canati ii 

 acuminalo. 



The ELLirncAi. Mahii-is. SIk^U thin. ..vate, narr 

 si|uanK>sely striated ; spirally slightly rib' 

 below the middle; spire concealed; aprrr 

 large, ovate, niiilill.' widr, anteriorly oblif|ii 

 acuminated ; columella rather tlat, much arcli< 

 outer lip raised above the spire, slightly e.\cav:i 

 near the canal, acuminated at the canal. | , 

 SowEHBY. Genera of Shells. No. L'l. , . ^. \ 



Hab. Maurhius. "■-'^■'\,. ', , 



Species 8. (Fig. a, b, Mus. Brit.) 



Magilus serhatus. Mag. testd ovato-subglobasd, tenni. 

 spiraliter rastis leviier elevatis, i-ugaso-striati.-- 

 cinctd : spird birrissijud, obtiisd, anfrartirs inn. ; 

 apcrtin-d inuipi,}, inarji/ie s,rrato ; vuluvielld 

 arcuatd. 



The serrated JLvgilus. Shell ovately subglobose, 

 thin, spirally circled by slightly elevated, rugosely 

 striated ribs ; sjiiro very short, oljtuse, with a 

 single whorl ; apei-turo large, with serrated mar- 

 gin ; columella arched. 



Deshayes? MS. in Mus. Brit. 



Uah. .' 



The spiral rounded and serrated ribs of this sj.eeies 

 are represented in Magilus sli-iatus by oidy very slight 

 spiral impressed lines, with the striation slightly raised. 

 In the present species the ribs are marked by crenatiuiis 

 at the edge of the outer lip. Some specimens, liowever, 

 of Magilus anti'pius in a young state, show this cha- 

 racter with e'jual force. 



Species 0. (Fig. '/, b, Jlus 



Magilus fimbri.\tus. Mag. 

 pjaluld, depres.'^-d, rosti.< 

 extantibus laiuiuafis ro 

 latd ; spird depnssd, 



niihii.- 

 unct /- 



Deceml 



1872. 



