124 



antice subęffusd; labro subiticrassato, purpureo ; labio purpuras- 

 cenli-nigro ; columeUd ayitich redd ; guld albd ; periostraco oli- 

 vacco. 

 Axis 3 1 unc. ; diameter 2. 



This shell approaches most nearly to Bul. Phasianella, Vai. ; it 

 is distinguishable by its bands, the dark colour of its inner lip, and 

 the straightness of its piliar in front. 



A paper was read, entitled, " Descriptions of some new Species 

 of Cuvier's Family of Brachiopoda, by W. J. Broderip, Esq., 

 V.P.G.S. and Z.S., F.R.S., L.S., &c." 



The characters of these new species are as follovvs: — 



Genus Terebratula. 



Terebratula Chilensis. Ter. testd suborbiculari,gibbd, albente, 

 rndiatim striatd, striis latioribus, margine subcrenidato, subjlex- 

 uoso: long. Ii, lat. If, crass. i poli. 

 Hab. in sinu Valparaiso. 



This species varies much in size and appearance. In the older 

 shells the radiated siria; almost disappear ; and very young indivi- 

 duals are nearly smooth and oblong; vvhile those of intermediate 

 grovvth have the strics strongly marked. 



Mr. Cuming found this Terebratula in the Bay of Valparaiso, at 

 a depth ranging from sixty to ninety fathonns. The older shells 

 were attached to rocks, and the younger to CoraUines and Fuci. — 

 W. J. B. 



Terebratula Uva. Ter. tesld ovato-oblongd, ventricosd, sub- 

 glabrd, subdiaphand, lineis concentricis substriatd ; valvd perfo- 

 ratd subelongatd : long. 1 , lat. -§-, crass. iV poli. 

 Hab. in sinu Tehuantepec. 



This Terebratula was found by Captain Darė, while dredging for 

 Meleagrinm margaritiferce , attached to a dead sea-worn bivalve, at 

 a depth of from ten to tvvelve fathoms, and on a bottom of sandy 

 mud.-W. J. B. 



Genus Orbicula. 



Orbicula LAMELL08A. Ovb. testd comed, fuscd, suborbiculūri, 



subdepressd, lamellis concentricis elevatis riigosd : long. 1 ,V, 



lat. 1 poli. 



Hab. ad Peruviae oras. (Iquiqui. — Bay of Ancon.) 



This species was found by Mr, Cuming in groups, the individuals 



being in many instances piled in layers one over the other on a sandy 



bottom, at a depth ranging from five to nine fathoms. At Ancon they 



were found attached to dead shells, and also clinging to the wrecK 



of a Spanish vessel of about 300 tons, which went down in the bay 



about tvvelve years ago. Thesunken timbers (for the sheathing wa3 



gone to decay,) were covered with these shells, much in the šame 



way that beams on land are sometimes invested with flat parasitic 



Fungi. At Iquiqui they were taken adhering to a living Mytilus. — 



w.j.'b. 



Orbicula Cumingii. Orb. testd subconicd, suborbiculari, eras- 



