196 
Conch. Icon., Cypricardia, pl. 2. f. 8. 
fab. Island of Burias, Philippines (found under a stone at low 
water); Cuming. 
The surpassing delicacy of the ridges is exceedingly characteristic 
in this species ; instead of looking raised upon the surface, they have 
all the appearance of undulating rays of light. 
CypricarDIA Laminata. Cypr. testd trapezio-oblongd, tenui, albd, 
latere pustico valde latiore, rotundato, compresso, laminis duabus 
vel tribus elenatis subdistantibus fimbriato. 
Conch. Icon., Cypricardia, pl. 2. f. 9. 
Hab. Lord Hood's Island, Pacific Ovean (found at the depth of 
five fathoms piercing, and partially imbedded in, the Avicula mar- 
garitifera) ; Cuming. 
This peculiarly shaped shell exhibits the same kind of delicate 
marginal frill of Jamina as the well-known Cypricardia corallio- 
phaga, and belongs to a mollusk of the same terebrating habits. The 
shells of terebrating mollusks vary so exceedingly in form, accord- 
ing to circumstances of situation, &c., that were the C. laminala not 
entirely destitute of the fine radiating striaz which characterise the 
C. coralliophaga, it might be regarded as a modification of that 
species. 
Cypricarpia opesa. Cypr, lestd subquadrato-ovatd, valdé gibbosd, 
tunudd, latere postico suboblique angulato ; longitudinaliter stri- 
ald, striis profunde incisis ; lutescente-albd. 
Conch. Icon., Cypricardia, pl. 2. f. 10. 
Hab. 
This remarkable shell may be easily recognized by its stout 
swollen formation ; it differs materially in this respect from its near- 
est allied species the C. Guinaica, as well as in the absence of any 
nodulous divergent striz. ‘The ridges between the longitudinal 
striz in these species are singularly opposite: in the Cypricardia 
obesa they are sharp and parallel to each other; in the Cypricardia 
Guinaica they are rounded and irregularly waved. Ditferences in 
regard to colour are also conspicuous, for the shell under consider- 
ation exhibits no indication of pink in the interior, but 2 kind of 
a burnt reddish-yellow tinge around the posterior muscular cicatrix. 
Cypricarpia Sorenowes. Cypr. testd angustatd, Soleniformi, 
latere postico plano-angulato ; albd, posticé purpurco-fusco obso- 
leté radiatd ; umbonibus purpureo-fuscis ; intus albd, ad extremi- 
tatem posticam purpureo-violaceo tinctd, 
Conch, Icon., Cypricardia, pl. 2. f. 11. 
Hab. Calbayog, island of Samar, Philippines (found piercing soft 
slaty rocks ; low water); Cuming. 
The Cypricardia Solenoides, though approximating greatly in form 
to the Cypricardia coralliophaga, differs materially in structure and 
composition ; the two species indeed exhibit all the differences upon 
which De Blainville founded his genus Coralliophaga. Instead of 
