PLATE XLII. ° 
METACRINUS MURRAYI, 0. sp. 
Diam. 
Fig. 1. Anentire specimen, . : : : ; . nat. size 
Fig. 2. A pinnule from some way out on the free arm, ; ie Se = 
Fig. 3. A pinnule from the fourth arm-division, : bk ae} 
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