179 



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

 plurimum serie iniicri 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 tiiberculato-striatd, (tuberculis subucutis), nigro-purpured, 



interdum albo fasciatd, varicibus latis, pinnatis, ladniatis, albis ; 



columelld Icevi ; labri limbo intus denticulato ; canali subelongatd: 



long. I, 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 striata {striis subremotis), varicibvs 



pinnatis, latiuscuUs, albidis, inter stitialiter tuberculatd vel sub- 

 ■ foliatd; columelld Icevi; labri limbo intus denticulato; canali 



elongatd, subrecurvd : long, li, 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. testd pyramidali, depressd, ponderosd, 

 striis transversis frequentibus tuber culato-grannsis, albido-rubente 

 maculis fasciisque castaneis ; columelld valde rugosd ; labri cre- 

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

 Hab. in Oceano Pacifico. (Annaa.) 



This differs from Ran. gran'ifera 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^lata. Ran. testd pyramidali, subponderosd, casianed, 

 costis striisque transversis granoso-mouiliformibus, nigricantibtis ; 

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

 limbo fimbriato, lato,fusco, albo radiato: long. H, lat. l^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. — VV. J. B, 



Ranella tuberculata. Ran. testd pyramidali, seriatim tubercu- 

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

 (equalibus nigricantibus ; aperturd albidd ; columelld subrugcsd ; 

 labri limbo intiis dentato, dentibus subremotis: long. l-Jj lo-'"- 1 

 poll. '^ 



Hub. in Oceano Pacifico. (Taheite.) 



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

 on the reef. — VV. J. B. 



Mr. Owen exhibited a preparation of the mammary gland of 

 Echidna Hystriv, Cuv. ; and read the following Notes : — 



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



