JOURNAL 
CONCHYLIOLOGIE 
2° Trimestre 1900 
DESCRIPTION D°’UNE ESPECE NOUVELLE 
DU GENRE CYRENA, 
PROVENANT DES NOUVELLES-HÉBRIDES 
par PH. DAUTZENBERG 
Cyrena ingens Dautzenberg 
PI. V. 
Testa maxima, solida, ponderosa, valde inflata, subtrigona, 
antice rotundata, postice, versus basim late truncata. Apices 
antrorsum incurvati, sat remoti atque erosi ad 1/3 latitudinis 
sit. Area lunularis excavata. Vulva complanata angulatim 
obtuse marginata. Latus anticum primum declivis, deinde regu- 
lariter rotundatum. Latus posticum arcuatum ac deinde late 
truncatum. Latus palleale arcuatum postice paulo sinuatum. 
Tota testa extus, sub cpidermide fibroso, versus margines cras- 
siore, wrregulariter concentriceque sulcata. Valvularum pagina, 
interna acute marginata, medio haud nitente ; impressiones muc- 
culares ac margo pallealis vero nitidiusculue. Margo cardinalis 
lata, solida, in valvula dextra dentes cardinales 3 praebet : 
