85 



Variat interdum immaculatum. 



Hab. ad Insulam 4nnaa inOceano Pacifico. 



At first I took this for the young of Card. Cardisce, but find it 

 difFers in several particulars, and theie are a great number of spe- 

 cimens exactly alike. 



Found in fine corai sand on the reefs in great abundance. — G. B. S. 



Cardium Consors. Card. testu ohovalt, turgidd, altiore qudm 

 longd, 2}aUesceiiie,Jusco-7-2tfescente marmoratd, radiatim multi- 

 costatd ; costis conf'ertim squamosis, sųuamis Jhrnicatis, ariteri- 

 oribus mnrginibus rejlexis, posterioribiis porrectis ; intūs purpu- 

 rascenti-fuscd : long. 2', lat. 2-2, alt. 2-6 poli. 



Hab. ad Sanctam Elenam et ad Guacamayo. 



Collected in sandy mud at from six to eleven fatlioms. 



The number of ribs in tliis species is 34- ; they are raore numer- 

 ous and more closely set together than in Card. Isocardia, vvhich 

 it otherwise inuch resembles. — G. B. S. 



Cardium laticostatom, Card. testd rotundatd, subveniricosd, 

 postice subangulatd, ringente, paUidd, fu&co maculosd, radiatim 

 costatd ; costis anticis medianisįne latis, rotundatis, posticis an- 

 gulatis : interstitiis angiistis : long. 1-7, lat. 1"3, ali. \-1 poli. 



Hab, in Sinu Xipixapi. 



Found in sandy mud at the depth of eleven fathoms. — G. B. S. 



Cardium maculosum. Card. testd obovali, sulventricosd, postice 

 subdeclivi, marmoratd, radiatim costatd ; costis anticis planatis 

 marginibiis crenatis, posticis rotundatis; interstitiis anticis an- 

 gustissimis : long. i 9, lat. I '.5, alt. '2 5 poli. 



Hab. ad Insulas Tres Marias, in Sinu Californiensi. 



Found on the sands. — G. B. S. 



Cardium Panamense. Card. testd obovali, antici rotundatd, 

 postice subangulatd, ringente; costis radiantibus anticis media- 

 nisque latis, magnis, primiim angulatis, demum rotundatis, pos- 

 ticis angustioribus antice crenatis: long. 15, lat. r4, alt. r9 

 poli. 



Hab. ad Panamam. 



Found in sandy mud at a depth of ten fathoms. — G. B. S. 



Cardium aspersum, Card. tęst i longitudinaliter ovali, postice 

 hiante, pallida, rujescente marmoratd, serrat i ; laleribus subce- 

 qualibus ; costis radiantibus numerosis, Uiteralibus crenulalis, 

 medianis planulatis : long. 1*6, lat. 0"75, alt. ]-2poll. 



Hab. ad Sanctam Elenam et ad Montem Christe. 



Found in sandy mud at seven fathoms depth. 



This resembles Card. solenįforme ; by comparison, hovvever, it is 

 easily distinguished. — G. B. Š. 



Cardium multistriatum. Card. testd obovali, jMllide Julvd, 

 rtijb punciulatd ; striis radiantibus numerosis, anticis decussatis, 

 posticis subgraniferis : long. 0*8, lat. 0-7, alt. 0-9 poli. 



Hab. 



Oniy one specimen was found.— G. B. S. 



