. Elementary text-book of zoology. NEPHROPS. 209 will be on the basal joint of the anti-penultimate leg. In front of the legs are the chela, or pincers, usually asym- metric, as one is modified for cutting and the other for crushing. They are evidently large legs and do not differ essentially from a typical leg. Fig. 132.—A Chela of Nephrops (9th appendage). (Adnat.). Ischiopodite., Coxopodite.' Basipodite. Fig. 134.—A Non-Chelate Leg of Nephrops (12th appendage). (Ad nat.) In front of the chelae are three pairs of maxillipedes or foot-jaws. The second maxillipede may be examined first. It has
. Elementary text-book of zoology. NEPHROPS. 209 will be on the basal joint of the anti-penultimate leg. In front of the legs are the chela, or pincers, usually asym- metric, as one is modified for cutting and the other for crushing. They are evidently large legs and do not differ essentially from a typical leg. Fig. 132.—A Chela of Nephrops (9th appendage). (Adnat.). Ischiopodite., Coxopodite.' Basipodite. Fig. 134.—A Non-Chelate Leg of Nephrops (12th appendage). (Ad nat.) In front of the chelae are three pairs of maxillipedes or foot-jaws. The second maxillipede may be examined first. It has a leg-like five-jointed endopodite, a two-jointed protopodite and a long filamentous exopodite Finally there is a long epipodite, but no gill.* The third maxilli- pede is like it, but can be easily distinguished by the serrated In Astacus there is a gill on this appendage. M. 15. 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 Masterman, Arthur Thomas. Edinburgh, E. & S. Livingstone
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