. Echinoidea . Fig. ig. Abaclinal part of the left posterior Interambiilacruin (4), of Hemiastei' gibbosus; comp. with PI. XX. Fig. 9 of the < Challeuger»- Echinoidca. â lu tlie exphiiiation of Piates (p. 292) it statcd tliat Fig. 5 and 6 represent the same specimen which is evidently and in contradictiou to the text (p. 1S4).

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Keywords: ., bookcentury1900, bookcollectionbiod, bookdecade1900, bookyear1903