179 



Obs. Tubercula seriatim disposita, elevata, magna, subacuta, ut 

 plurimum serie unica in quoque anfractu, ultimo excepto. 



Found in sandy mud from seven to ten fathoms. — W. J. B. 



Ranella nitida. Ran. testa subrhomboided, valde depressd, trans- 

 versim tuberculato-striatd, (tuberculis subacutis), nigro-purpuredj 

 inter dum albo fasciatd, varicibus latis, pinnatis, laciniatis, albis ; 

 columella Icev'i ; labri limbo intics denticulato ; canali subelongatd: 

 long, 1, lat. %poll. 



Hab. ad Columbiam Occidentalem. (Bay of Caraccas.) 



Found under stones in the bay. — W. J. B. 



Ranella mukiciformis. Ran. testa subpyriformi, fused, fultd 

 vel sordide albd, transversim striatd (striis subremotis), varicibus 

 pinnatis, latiusculis, albidis, interstitialiter tuberculatd vel sub- 

 foliatd; columella lavi ; labri limbo intics denticulato; canali 

 elongatd, subrecurvd: long. 1-J-, lat. £ poll. 



Hab. ad Columbiam Occidentalem. (Bay of Montija.) 



This species, which approaches very closely to Murex, was found in 

 loose gravel at the depth of seven fathoms. — W. J. B. 



Ranella affinis. Ran. iestd pyramidally depressd, ponderosd, 

 striis transversis frequentibus tuberculato-granosis, albido-rubente 

 maculis fasciisque castaneis ; columelld valde rugosd; labri ere- 

 nulati, subfimbriati limbo intus dentato : long. 2-J-, lat. \% poll. 

 Hab. in Oceano Pacifico. (Annaa.) 



This differs from Ran. granifera of Lamarck in having a much 

 more ponderous shell, with its varices much thicker and wider in pro- 

 portion, and the border of the outer lip much wider. It is also much 

 more depressed and broader in proportion to its length. 

 Found on the reef. — W. J. B. 



Ranella c^elata. Ran. testa pyramidali, subponderosd, caslaned, 



costis striisque transversis granoso-momliformibus, nigricantibus ; 



aperturd rugoso-granosd, fulvd, dentibus rugisque albidis ; labri 



limbo fimbriato, lato,fusco, albo radiato; long. 1£, lat. \\poll. 



Hab. ad Panamam. 



This handsome species reminds the observer of some of the antique 

 carved ornaments in oak and chestnut. The apex of the spire is ge- 

 nerally eroded. 



Found under stones. — W. J. B. 



Ranella tuberculata. Ran. testa pyramidali, seriatim tubercu- 

 latd, transversim striatd y subfulvd albo fasciatd, tuberculis sub- 

 cequalibus nigricantibus; aperturd albidd ; columelld subrugcrd ; 

 labri limbo intus dentato, dentibus subremotis : long. 1-$, Id. 1 

 poll. 



Hab. in Oceano Pacifico. (Taheite.) 



Only one individual of this pretty species was found, and that was 

 on the reef.— W. J. B. 



Mr. Owen exhibited a preparation of the mammary gland of 

 Echidna Hystrix, Cuv. j and read the following Notes : — 



" It is well known that the idea of constituting a new class for the 



