35 



Numerous specimens were exhibited from Mr. Cuming's collec- 

 tion, in illustrufion of a Paper by Mr. Broderip, entitled, " Descrip- 

 tions of several New Species of Cdbjplrmda." 



The new species described in this paper are distributed and charac- 

 terized as follows : 



Subgenus Calyptr^a. 

 Testa subconica, subucuniinala, cyalhi basi adhserentc, lateribus 

 liberis. 



a. Cyatho integro. 

 Calyptb^ba rudis. Cul. testd fused, auidepressd, suborbiculari, ra- 

 diatim corrugatd, limbo crenato ; cyatho concentrice lineato,alb'ido, 

 irregulariter subcirculari ; epidermide subfuscd : diam. 2 poll, 

 circiter, alt. -^. 

 Hub. ad Panamam et Real Llejos. 



This species, whose white onyx-like cup, adhering only by its base, 

 shows to great advantage against the ruddy brown which is the ge- 

 neral colour of the inside of the protecting shell, was found under 

 stones. The young shells are the flattest and most regular in form, but 

 their inside is generally of a dirty white, dimly spotted with brown. — 

 W. J. B. 



/3. Cyatho hemiconico, longiludinaliter quasi diviso. (Calyptreea, Less.) 

 CALYPTHiE.\ CORBUGATA. Citl. testd subalbidd , suborblcuUtri, subde- 

 presid, corrugatd ; intiis nitente ; cyatho concentrice Uneato, pro- 

 ducto ; epidermide fused : diam. \-^ poU. circ, all. ~i%f. 

 Hab. in America Centrali. (Guacomayo.) 

 Found under stones at a depth of fourteen fathoms. — W. J, B. 



Calyptu^a varia. Cal. testd nlbidd, suborbiculari, crassiusculd, 

 longiludinaliter creberrime striata ; cyatho concentrice Uneato, 

 crassiusculo, producto : diam. \f, alt. max. 1, alt. min. -^ poll. 

 Hab. in Oceano Pacifico. (Lord Hood's Island, the Gallapagos, 

 and the Island of Muerte in the Bay of Guayaquil.) 



This is a very variable species allied to Cal. equestris, and taking 

 almost every shape which a Calyptraa can assume. It difi'ers in 

 thickness according to localities and circumstances. — W. J. B. 



Calyptr.sa ckpacea. Cal. testd alba, suborbiculari, subconcavd, 

 tenui, diaphand, slriis numerosis subcorrugatd ; intus nitente ; 

 cyathi lerminutionibus lanceolatis : long, \-r-j, lut. 1 i, tilt, i poll. 

 Hab. in sinu Guayaquil. (Island of Muerte.) 



This was dredged up, adhering to dead shells, from sandy mud, at 

 a depth of eleven fathoms. Besides other difierences, the terminat- 

 ing points of the divided cyathus axe much more lanceolate than they 

 are in Cal. varia. — W. J. B. 



CALYPTRiEA CORNEA. Cal. tsstd suborbiculori, complanatd, albidd, 

 subdiaphand, concentric^ lineatd et radiaiim striatd ^ intUs ni- 

 tente : diam, -I, alt. -j- poll. 



Hab. ad Aricam Ptruviae, 



Predged up from sandy mud at a depth of nine fathoms. — W.J. B. 



