. A manual of zoology. PHYLUM ARTHROPODA 2jI the appendages, and the essential features of the internal anatomy. The crabs and the hermit-crabs differ from the other forms mentioned, mainly in the abdomen being re- duced. In the crabs (Fig. 131) this region is extremely small, its appendages are only feebly developed, and it is. Fig. 132. — Pagurus bernhardus. ch, chela of first right leg; /. 4, , fourth and fifth legs: t, abdominal terga; «/, uropods. (After Bell.) permanently flexed on the sternal surface of the cephalo- thorax, so that it is completely concealed from view when the animal
. A manual of zoology. PHYLUM ARTHROPODA 2jI the appendages, and the essential features of the internal anatomy. The crabs and the hermit-crabs differ from the other forms mentioned, mainly in the abdomen being re- duced. In the crabs (Fig. 131) this region is extremely small, its appendages are only feebly developed, and it is. Fig. 132. — Pagurus bernhardus. ch, chela of first right leg; /. 4, , fourth and fifth legs: t, abdominal terga; «/, uropods. (After Bell.) permanently flexed on the sternal surface of the cephalo- thorax, so that it is completely concealed from view when the animal is looked at from In the hermit-crabs 1 The European Cancer is represented by our common Cancer irro- ratus, and the explanation of Fig. 131 will equally well apply to our 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 Parker, T. Jeffery (Thomas Jeffery), 1850-1897; Haswell, William A. (William Aitcheson), 1854-1925. New York, The Macmillan Company; London, Macmillan & Co. ,Ltd.
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