Zoological Society. 37J. 



Length, fVo of an inch ; width, -^^f, of an inch. 

 Jrlab. Africa ; West Indies. Cab. Metcalfe, Cuming, Gaskoin, &c. 



16. CoLUMBELLA CONSPERSA. Tcsttt oblongo-ovata, pyrami- 

 dalis, pallide brunnea, maculis anticis, albi-opacis, irregulari- 

 bus ; fasciis tiibus albi-opacis, brunneo interruptiSy duabus 

 posticis ab aperturd ad apicem continvis ; spird acuminata an- 



^i' fractibus novem vel decern convexiusculis ; aperturd rectd^ latius- 

 <is- ciddj labia externa ad marginem acutOy margins externa lata 

 <^\ prominentCy intv^ denticulis quatuor quinque vel sex parvis ; 

 '^s: labia interna Iceviy nitida, intus varice parvo denticulatOy extus 

 varice subprominente ad latiis canalis extenso ; st?iis tenui- 

 bus per anticam partem dorsi cantinuis ; canali langiusculoy an- 

 gusto, leviter recurvo ; peritremate subquadrangulOf Ulacino. 

 Length, -^^-^ of an inch; width, -f^-^ of an inch., ,^^^..,^^ v/..^^,^i, \ 

 Hab. ? Cab. Gaskoin. fj^/jj ^^^ '\o'j^^ ^i-^^il 



1 7. CoLUMBELLA FORMOSA. Tcsta oblon\;0'OmttWyhaMsy bifida, 

 colore Jlari-lactea induta ; fasciis duabus maculis albicantibus 

 brunneisque interruptis '; spird acuminatdy ad dimidium longi- 



'..' tudinis testcB cequali ; anfractibus septem vel acta convexiuscu- 

 lisy suturd subprominente ; aperturd latiusculd et breviusculd ; 

 labia externa l(Evi tenui, interna Icevi ; canali lato^ ^ ^ 



« Length, /^ of an inch ; width, ^%\ of an inch. ^ ,^,^^^J^ 



^,Jiab. '. Cab. Gaskoin. . u» ,•..>,. v.., 



t*5i8. CoLUMBELT.A HiRUNDO. Tcsta ovato-pyramidalisy IceviSy 

 '' . nitenSy pallida, strigis punctisque brunneis leviter maculata ; 

 spird mucranatdy dimidium langitudinis testes cequante ; an- 

 fractibus novem vel decern planis ; aperturd latiuscidd ; labia 

 externa crasso albo semicirculariy dentibus duabus vel tribus 

 latis posticis internis, margine externa crasso alba ; labia in- 



"f terno Icevi, subspiraliy dente salitaria majusculo ad posticam 

 partem; canali langa, latiuscula, recurvo, rostris 2)rominenti- 

 bus, externa divergente quasi furcato ut in forma caudce hirun- 

 dinis. "^ -.,-.-. 



Length, -^^ of an inch ; width, ^% of an inch. ^^^ 



Hab. Per the * Samarang.' Cab. Gaskoin. 



' This species is of the stamp of Col. bicanalifera of Sowerby, Proc. 



Zool. Soc. part ii. page 113 ; Sowerby's Thesaurus, fig. 144. 



19. CoLUMBELLA Californiana. Tcsta oblonga-avatay sub- 

 pyramidalis, Icevisy nitenSy brunneUy vel brunneo variabilis, ali- 

 quando lineis tenuibuSy fortiaribus, aut latiusculis irregulari- 

 bus ; spird acuminatd dimidium testce subcequante ; anfracti- 

 bus septem convexis ; aperturd latd sub quadr angular i ; labia 

 externa tenuiusculo intus denticulato, labia interna leviter den- 

 , , ticulato ; dorso antice transversim striata; peritremate pur- 

 '•'. pureo-niyricante ; canali brevi. V 



■ Length, -^^^ of an hich ; width, ^^ of an inch. -''^^ * ~^- 



Jlab. Sandeago, California. Cab. Cuming, Gaskoirii'^ os«»i 



.>v20. CoLUMBELLA loDOSTOMA. Tcsta oblongo-ovata, irregula- 

 riter brunnea; spird acuminatd, apice C(^^\\d^q-.lii'm^in^^^ an- 



