Annual report of the Commissioners of Inland Fisheries made to the General Assembly . ick has shown, the carpopodite or fifth joint)so that in the present position of the claw the dactyl opens inward; theexopodites have been lost in the recent molt. Ambulatory appendages: These have lost, in the recent molt, the exopodites which, as is also thecase in the chelipeds, have atrophied to functionless stvunps (notshown in the drawing); no torsion has taken place in the first two pairs(the second and third chelate limbs), and the dactyls of the claws openupward and outward as before. Abdominal appen
Annual report of the Commissioners of Inland Fisheries made to the General Assembly . ick has shown, the carpopodite or fifth joint)so that in the present position of the claw the dactyl opens inward; theexopodites have been lost in the recent molt. Ambulatory appendages: These have lost, in the recent molt, the exopodites which, as is also thecase in the chelipeds, have atrophied to functionless stvunps (notshown in the drawing); no torsion has taken place in the first two pairs(the second and third chelate limbs), and the dactyls of the claws openupward and outward as before. Abdominal appendages: These have become fringed with a border of delicate setae; the exopoditesand endopodites of each are clearly distinct and, for the first time,functional; the appendages of the last abdominal segment have increasedin size and are now bordered by a fringe of long matted setse; the ap-pendages of the first segment have not appeared at this stage. Tail: Owing to the changes in the appendages of the last abdominal segment,the tail now closely resembles that of the adult Plate ZOIXII, Fourth Stage Lobster Drawij from Life by Philip B, Hadley, 19 05. REPORT OF COMMISSIONERS OF INLAND FISHERIES. 233 EXPLANATION OF PLATE 33. Young male lobster; fourteenth stage; length, 65 mm.: age, approximately 14 months. First antenna: These are relatively longer than in the fourth stage; the olfactory setaeare not distinct. Second antenna: The endopodites have developed into long whip-like filaments longerthan the whole body; the exopodites show no further development. Eyes: These are relatively smaller. Chelipeds: These are differentiated, after the sixth stage, into a nipping and a crushing claw; the tip of the dactyl often closes far past the tip ofthe propodos. Ambulatory appendages: As in the fourth stage; the atrophied stumps of the exopodites disap-pear after the fifth stage. Abdominal appendages: Much as in the fourth stage; the external reproductive organs (modifiedswimmere
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Keywords: ., bookcentury1900, bookdecade1900, bookidannualreport, bookyear1906
