. Bulletin - United States National Museum. Science. Fig. 346— caudata (female) (After Ives), o, Dorsal view. c, Fourth leS of right side. X 4. h, Left side, x 4. median one, and each with a groove in the center from which extends a long movable spine-like bristle. The terminal segment has the con- vex anterior half provided with one large median tubercle with a groove in the center from which extends a bunch of hairs. On either side of this median tubercle is a row of two large tubercles in longi- tudinal series, the lower one in each series being in a transverse line with the median


. Bulletin - United States National Museum. Science. Fig. 346— caudata (female) (After Ives), o, Dorsal view. c, Fourth leS of right side. X 4. h, Left side, x 4. median one, and each with a groove in the center from which extends a long movable spine-like bristle. The terminal segment has the con- vex anterior half provided with one large median tubercle with a groove in the center from which extends a bunch of hairs. On either side of this median tubercle is a row of two large tubercles in longi- tudinal series, the lower one in each series being in a transverse line with the median tubercle. Below this transverse row of three tubercles and almost hidden by them are three small tubercles in a transverse row and much closer together than those directly above them. The posterior half of the terminal segment is deeply excavate, the post- lateral angles being very acute. Within the exca- vation are four acute teeth, two on either side of the center. The post-lateral angles have a small rudimentary tooth on the inner side near the extremity'. The fixed immovable branch of the uropoda extends oidy half the length of the termi- nal segment. The outer movable ])ranch is long and narrow and is curved inward, so that when folded its extremity meets that of the branch of the opposite side in the median line of the bod3^ The outer branch is furnished on its exterior margin with bimches of hairs scattered here and there. The legs are all ambulatory. On each segment of the thorax there are seven bunches of a few hairs, forming seven longitudinal series on the 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 United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S.


Size: 1427px × 1751px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience