. A manual of zoology. Zoology. I. CRUSTACEA: DEC APOD A. 435 ASTACOiDEA. Carapace crossed by a transverse groove. The Astacid^ have well-developed chelte. Cumharus * includes the crayfish of the. A B Fig. 444.—^, Crangon vulgaris *; B, Pandxdus moyitagui*. 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