Annual report of the Commissioners of Inland Fisheries made to the General Assembly . rostrum;the exopodites show definite traces of segmentation. Maxillipeds : As in second stage. Chelipeds: The claw portion approximates more to the shape of the adultclaw; owing to a gradual torsion of the limb from the carpopodite(fifth segment from base), the dactyl now opens upward and sometimesslightly inward. Ambulatory appendages: Much a,s in the third stage, except that the claws on the first two pairsare more fully developed; the first segments of the last two pairs aretipped with spurs; the
Annual report of the Commissioners of Inland Fisheries made to the General Assembly . rostrum;the exopodites show definite traces of segmentation. Maxillipeds : As in second stage. Chelipeds: The claw portion approximates more to the shape of the adultclaw; owing to a gradual torsion of the limb from the carpopodite(fifth segment from base), the dactyl now opens upward and sometimesslightly inward. Ambulatory appendages: Much a,s in the third stage, except that the claws on the first two pairsare more fully developed; the first segments of the last two pairs aretipped with spurs; the exopodites are still functional. appendages: These are now fringed with delicate setse, but are not yet functional;the appendages of the sixth abdominal segment are now observable;they consist of exopodite and endopodite of about equal size, both ofwhich are fringed with long setse. Tail: By the appearance of the appendages of the last abdominal segment thetail now resembles .somewhat more closely that of the adult lobster; thetelson is bordered with a fringe of I CO ^m cq
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Keywords: ., bookcentury1900, bookdecade1900, bookidannualreport, bookyear1906
