. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 264 WILLIAM H. LANG n. FIGURE 8. A. Cyprid of Octnlasiitis ini'illcri recovered from blue crab gill 16 hours after exposure. Prominent features include the cemented antennules (a.), compound eye (), natatory appendages (), nauplius eye () and orange pigment spot (p.)- B. By 36 hours after recovery the cyprid carapace (c.) is nearly shed. C. The newly emerged juvenile barnacle still retains the nauplius eye () and pigment spot (p.). Primordial valves () and expanded peduncle (ped.) are evident. opaque.
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 264 WILLIAM H. LANG n. FIGURE 8. A. Cyprid of Octnlasiitis ini'illcri recovered from blue crab gill 16 hours after exposure. Prominent features include the cemented antennules (a.), compound eye (), natatory appendages (), nauplius eye () and orange pigment spot (p.)- B. By 36 hours after recovery the cyprid carapace (c.) is nearly shed. C. The newly emerged juvenile barnacle still retains the nauplius eye () and pigment spot (p.). Primordial valves () and expanded peduncle (ped.) are evident. opaque. From 20 to 72 hours post-recovery, the carapace, natatory appendage exuvium and compound eyes were shed (Fig. 8B). The newly emerged adults exhibited stalk movement and slight cirral and valve movement. The naupliar eye and orange pigment were still visible and the five primordial valves evident (Fig. 8C). The orange pigment appears closely associated with the gut region. Young adults exhibit little activity at first but between two to three days after metamorphosis a full extension of the cirri was noted. At this point the orange pigment has disappeared and the naupliar eye is indistinct. The young barnacles will readilv feed on crushed Artcniia. DISCUSSION Field results indicate that breeding of 0. ini'tllcri and cyprid settlement on crabs is restricted to summer and fall months. Although adults are often maintained in. 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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