. Natural history of the American Decapoda (Crustacea); Lobster fisheries. NATURAI, HISTORY OF AMERICAN I^OBSTER. THE SECOND I^ARVA. 337 [Fig. 41.] Under favorable conditions the first larval stage of the lobster lasts from i to 2 days. Upon molting for the first time after birth, the animal emerges into its second larval, free swimming Fig. 41.—Second larva, or second swimming stage of lobster in profile. For natural swimming position hold page sidewise with head of animal down, and consult figure 40 of text. I^ength 9 mm., or 5 inch. In habits and color the second larv
. Natural history of the American Decapoda (Crustacea); Lobster fisheries. NATURAI, HISTORY OF AMERICAN I^OBSTER. THE SECOND I^ARVA. 337 [Fig. 41.] Under favorable conditions the first larval stage of the lobster lasts from i to 2 days. Upon molting for the first time after birth, the animal emerges into its second larval, free swimming Fig. 41.—Second larva, or second swimming stage of lobster in profile. For natural swimming position hold page sidewise with head of animal down, and consult figure 40 of text. I^ength 9 mm., or 5 inch. In habits and color the second larva resembles the first closely, but is distinguished by its slightly larger size and by the presence under the tail of four pairs of swimmerets on the second, third, fourth, and fifth abdominal segments, which appeared as minute buds beneath the cuticle of the first larva at birth. These appendages lack the swim- ming hairs, and do not become completely functional until the fourth 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 Herrick, Francis Hobart, 1858-1940. Washington, Govt. Print. Off.
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