NOES OF THE PACIFIC, I. GEODIDAB. 



PLATE 15. 



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Pig. 1 — 12 Sidotwps angulata n. sp. 

 2, 4, .9 massive specimen of S. a. var. megana: 3, 7, 8, 11 lobose specimen of S. a. var. m:ga,u.: 5, 6, 12, S. a. var. orthotriacur, 10 S. a. var. microana. 



ndenfeld photographed. 



