. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. BURROWING IN CHIRIDOTEA COECA 303. FIGURE 5. Limb planes of pereiopods of C. coeca. Quadrilaterals represent planes of equal dimensions oriented within the limb plane of each pereiopod, identical in position relative to a vertical plane through the coxae of each pereiopod pair, and a vertical plane through the major axis of the body. Plumodenticulate setae (Fig. 6C). These are 200-250 yum long, with a basal diameter of 10 yum. The setules are 80-120 yum long, with pointed, tooth-like setulettes. Two opposite rows of pointed
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. BURROWING IN CHIRIDOTEA COECA 303. FIGURE 5. Limb planes of pereiopods of C. coeca. Quadrilaterals represent planes of equal dimensions oriented within the limb plane of each pereiopod, identical in position relative to a vertical plane through the coxae of each pereiopod pair, and a vertical plane through the major axis of the body. Plumodenticulate setae (Fig. 6C). These are 200-250 yum long, with a basal diameter of 10 yum. The setules are 80-120 yum long, with pointed, tooth-like setulettes. Two opposite rows of pointed denticules, 1-4 yum long, occur post- annularly. These become narrower and more closely applied to the shaft near the pointed tip. There is no terminal pore (Fig. 6D). Plumodenticulate setae occur in a single row of 5-10 on the anterior margin of the basis of each ambulatory leg (Fig. 4B). Serrulate setae (Fig. 6E). These setae, 200-400 nm long, have a basal diameter of 10-15 yum. The shaft is smooth until approximately one-tenth the length from the tip, where, on one side only, the surface is raised in a dense concentration of 3 /urn-long fingerlike denticules. The tip is tapered, emerging from underneath the denticulate area. There is a crease-like subterminal pore (Fig. 6E). These are the stout, distally pointing setae on the anterior and distal margins of the basis, ischium, merus, carpus, and propodus of the ambulatory legs and the merus, carpus, and propodus of the first and second gnathopods (Fig. 4A-C). A tuft of these setae emerges from the posterior side of the tip of the propodus on the ambulatory legs. The dactyl emerges adjacent to the setal tuft, forming a "splayed ; A single row of serrulate setae is found on the posterior margin of the propodus of each gnathopod. Serrate setae (Fig. 6F). These are 400-500 yum long. The basal diameter is about 15 /urn. There are two rows of large, V-shaped denticules which end approximately 10 /urn from the roughen
Size: 1776px × 1407px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
