Zoo/uffical Society. 139 



obsciiri zonatd, in/erne albidd, submedio zond pallidd cincld ,- 

 spird glaucescente ; aperturd intiis fusco-purpurascente. 



Operculum testaceum, solidum, ad apicem tenuiusrulutn, lactcum, 

 postice marginem versus fusrum, hevigatum, antice lined angustd 

 circumdatum. Varietates inmmiercB Naticse maroccanse Chem- 

 nitzii (Nat. 7narochiensis Lamk. non IMenke nee Philippi, quae 

 est Nerita (Natica) glaucina Linne certe) differt, formd, facie, 

 consistentid, umbilico, funiculo et operculo. Rara. 



Hub. "River Gambia; found on the sands by Mr. Beale of Jer- 

 sey." H. Cuming. 



11. Natica canrexa, Lamk. 



Nerita canrena, Linn., Mus. L. U. p. 674. no. 383. Synonymis 

 et variet. exclusis. 



Var. ft. Minor, temtlor, magnitudinis avellanee, zonis tribtis albis et 

 totidem fuscis pallidis cincta ; zonis albis medio ventris lineis 

 arcuatis spadiceis ornatis, supcrd maculis spadiceis arcuatis pictd ; 

 suturd fascid angustd luted marginatd, striis radiatis crebris 

 sculptd ; nmbilico parvo ; canali profiindo, araiato, zond lutissimd 

 albd circumdato et maculis spadiceis remotis notatd. 



Hab. " Jacna, isle of Bohol, Philippines ; twelve fathoms, sandy 

 mud." H. Cuming. 



An eadem ut t}-pus Linnei .-' 



Var. y. Testd, omninh albd, ad suturam lacteo fasciatd ; labro fra- 

 gili. 



Hab. " Island of St. Vincent, North America." H. Cuming. 



12. Natica pavimentum. Nat. testd ovato-obtusd, subglobosd, par- 

 vuld,exalbidd,lacteo-quadrifasciatd, supremd laid lineis rufis radia- 

 tis, tribus inferioribus angustioribus viaculis quadratis rufis seriatis 

 articulatis pictd ; spird convexo-rotundatd, parvd, vix prominenti ; 

 aperturd albd, obliqud ; columelld rectd, solidd; funiculo semi- 

 rotundo, umbilico parvulo omninu occultante. 



Var. ft. Testd fascid medii ventris maculis longitudinaliter oblongo- 

 quadratis remotioribus pictd. 



Testd anfractibus quinis, convexo-depressis, infimo convexiore ; su- 

 turd vix impressd. Operculum ? 



Hab. "The island of Ticao, Philippines; found on the reefs." 

 H. Cuming. 



13. Natica Gualteriaxa. Nat. testd subovatd, semigloboso-acutd, 

 tenui, subepidermide fuscescente albidd, punctis quadratis spadi- 

 ceis seriatis in medio ventris trifasciatd, superne lineis concolori- 

 bus obsoletisque decurrentibus ornatd ; anfractibus ventricosis, ad 

 suturam longe et crebre striatis, fascid albd circumdatis ; spird 

 conico-acutd ; aperturd dilatatd, basi subproductd et angulosd ; 

 umbilico parvo ; funiculo semiovato, supra oblique piano, umbi- 

 licum et canalem valde occultante. 



Var. ft. Testa minor ,fasciis punctorum in medio ventris ultimi duabus. 

 Hab. " Sual, province of Pangasinan, island of Luzon; found at 

 five to seven fathoms, on sand." H. Cuming. 



