A SWARM OF SILIQUARIA CUMINGII. 
Some kinds of shells often occur in large masses of irregular shape, 
This illustration shows a swarm of Sv/iguaria cumingit which have bored into a sponge. This specimen is 
one foot and two inches long, and nine inches wide. 
The shells appearing on the surface number not less than 120. 
This species is closely coiled in the earlier whorls, but towards the last whorl it is irregularly and variously 
twisted like a worm. A long fissure, or series of holes, runs along a considerable part of the shell. 
2» KAORAE 
PORULZE 2 FEMI PRET ZL SHY. x Ae B—MOBEM Plc HEA SRA LT. FEROB—R—TT 
WALT AML St > KW LOMAALE EY —HORMART. t > Awe OMDB RAR LR IC OB GE S 
b FAB AT AA S Tey FARE. BRA ES. MRO EA ATT. 
