. The shell book . MUREX SHELLSI Murex, Mum srnicostala 2 Cabbage Murex. Murex brassica. 1 Murtx trialatus. X Murex jestivus. 3, 4 Alurex }oliatus The Oyster Drill orous snails. Through this hole the soft parts are sucked; thesolid flesh may be picked at leisure from between the gaping valves. At intervals the oysterman drags his tangle, a great mopmade of untwisted rope fibre, and his dredge over the oysterbeds, and destroys all the drills caught up by them. These arenot effectual exterminators by any means; but they are the bestthings yet devised to combat the enemy. T
. The shell book . MUREX SHELLSI Murex, Mum srnicostala 2 Cabbage Murex. Murex brassica. 1 Murtx trialatus. X Murex jestivus. 3, 4 Alurex }oliatus The Oyster Drill orous snails. Through this hole the soft parts are sucked; thesolid flesh may be picked at leisure from between the gaping valves. At intervals the oysterman drags his tangle, a great mopmade of untwisted rope fibre, and his dredge over the oysterbeds, and destroys all the drills caught up by them. These arenot effectual exterminators by any means; but they are the bestthings yet devised to combat the enemy. The creatures smallsize, its rapid multiplication and its ravages when present innumbers make continuous warfare upon it the only salvationfor the oyster beds. Chesapeake Bay was probably the original home of thedrill. From this locality it has migrated north and south; trans-planted with the oysters to San Francisco Bay, it has spreadalso on the west coast. Each female lays during a period of several weeks a totalof ten to one hundred egg cases. Each one is vase-shaped,vertically flattened and ke
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Keywords: ., bookcentury1900, bookdecade1900, bookidshellbook00r, bookyear1908
