SCATOLOGICAL S T U D I E S OF THE BIVALVIA (MOLLlISCA)
355
Measurements when size of producer is 54.0 mm in shell length :
Length of pellet (mm)
1.91 2.18 1-78 1.91 1.73
Breadth of pellet (mm)
1.07 1.00 1.27 1.06 1.22
Ratio length/breadth
1.79 2-18 1.45 1.80 1.42
Fig. 10. Faecal pellets of: top, Nuttalia olivacea; bottom, Hiatella jlaccida.
124. Nuttalia oliwacea (Jay) (Pl. 2-23; Fig. 10, top)
The pellets are elongated ellipsoidal with round ends. The surface
355
Measurements when size of producer is 54.0 mm in shell length :
Length of pellet (mm)
1.91 2.18 1-78 1.91 1.73
Breadth of pellet (mm)
1.07 1.00 1.27 1.06 1.22
Ratio length/breadth
1.79 2-18 1.45 1.80 1.42
Fig. 10. Faecal pellets of: top, Nuttalia olivacea; bottom, Hiatella jlaccida.
124. Nuttalia oliwacea (Jay) (Pl. 2-23; Fig. 10, top)
The pellets are elongated ellipsoidal with round ends. The surface