. A manual of zoology. Zoology. GENERA L EMBU YOL 0 G T. 155 Distribution of the Types of Cleavage.—Of the four types of cleavage meutioned tlie superficial one has an interest from the point of view of the S3'stematist, since it occurs exclusively in the arthrojiods. The other modes of cleavage are distributed as fol- lows : the discoidal has been observed in the niajorit}' of the vertebrates and in the most highly organized molluscs, the A „ C. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearanc
. A manual of zoology. Zoology. GENERA L EMBU YOL 0 G T. 155 Distribution of the Types of Cleavage.—Of the four types of cleavage meutioned tlie superficial one has an interest from the point of view of the S3'stematist, since it occurs exclusively in the arthrojiods. The other modes of cleavage are distributed as fol- lows : the discoidal has been observed in the niajorit}' of the vertebrates and in the most highly organized molluscs, the A „ C. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hertwig, Richard, 1850-1937; Kingsley, J. S. (John Sterling), 1854-1929. New York, H. Holt and Company
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1902
