'272 Zoological Society. 



Hab. Island of Guimaras, Philippines (attached to stones) ; Cu- 

 ming. 



An extremely delicate and characteristic species, in which the 

 upper valve is very finely laminated, whilst the ground sculpture of 

 both that and the lower valves is of a curious roughened character, 

 somewhat similar to the Tellince scobinata and lingua-felis. 



Chama PELLis-PHOCiE. Cham, testd suborbiculari, valvd superiore 

 undique minutissime squamatd, squamis umbonem versus brevissim^ 

 retusis, marginem versus longioribus subspiniferis, inferiore rud^. 

 lamellatd, valvarum marginibus IcBvibus ; albd, squamis marginem 

 versus rufo-fuscis, umbone roseo. 



Hah. Island of Ticao, Philippines (attached to stones) ; Cuming. 



The pink stain upon the umbone is probably a character which 

 may help to distinguish this species. 



Chama appressa. Cham, testd orbiculari, valvis ambabus concen- 

 trice laminatis, laminis tenuibus piano -appressis, inferiore postice 

 liris perpaucis minutis oblique exsculptd, valvarum marginibus 

 Icevibus ; albd, roseo -fuscescente sparsim tinctd. 



Hab. Honduras ; Dyson. 



Distinguished by its concentric flatly appressed laminae. 



Chama Ruppellii. Cham, testd suborbiculari, valvd inferiori vald'h 

 productd, crassiusculd, leevigatd, plus minusve erosd ; albidd, val- 

 varum marginibus intemis vivide rufo-purpureis. 



Hab. Red Sea. 



Approximating closely to the C iostoma, but from so remote a 

 locality that I venture to distinguish it as a new species. 



Chama brassica. Cham, testd suborbiculari-ovatd, circiter tri- 



gond, valvis ambabus rugosis, profuse squamatis, squamis valvce 



superioris subfoliaceis, inferioris brevibus, erectis ; albidd, squamis 



roseis. 



Hab. Island of Cabul, Philippines (under stones at low water) ; 



Cuming. 



An interesting species, curiously scaled, and of peculiarly circui- 

 tous growth. 



Chama Cardit^formis. Cham, testd transversim oblongd, valvis 

 ambabus radiatim minutissime squama: liratis, squamis appressis, 

 posticis majoribus, valvarum marginibus crenulatis ; albd, lirarum 

 interstitiis postice coccineo-rufis. 



Hab. ? 



Easily distinguished by its peculiar oblong growth, which appa- 

 rently is not accidental. 



Chama venosa. Cham, testd circiter trigond, lateraliter affixd, 

 valvis ambabus Ictvibus, radiatim subobsolete tricostatd, costis 

 aspere nodulosis ; albd, lineis purpureo -roseis obliquis undique 

 venosd, intus albd. 



Hab. ? (Attached to shells.) 



The blood- red lines with which the entire surface of this shell is 



