. Bulletin - United States National Museum. Science. Fig. 571.—Pseudione furcat.*.. a, Dorsal view of female, h. Ventral view of same, x 4. Mouth parts and antenna^ concealed by first lamelhv of marsupium. The first antenna are composed of three, the second of four joints. The thorax has all the segments distinct. Ovarian bosses are large and prominent on the first four segments. The epimcra on these seg- nuMits are represented by narrow ridges lateral to the ovarian bosses; those of the three last segments occup\^ all of the lateral margin. The segments of the abdomen are all distinct with th


. Bulletin - United States National Museum. Science. Fig. 571.—Pseudione furcat.*.. a, Dorsal view of female, h. Ventral view of same, x 4. Mouth parts and antenna^ concealed by first lamelhv of marsupium. The first antenna are composed of three, the second of four joints. The thorax has all the segments distinct. Ovarian bosses are large and prominent on the first four segments. The epimcra on these seg- nuMits are represented by narrow ridges lateral to the ovarian bosses; those of the three last segments occup\^ all of the lateral margin. The segments of the abdomen are all distinct with the epimera pro- duced in wide plates on either side of the narrow middle portion of the segment. The sixth or terminal segment is without epimera, and terminates posteriorly in two small, rounded lobes. The pleopoda are five pairs of smooth, narrow, elongated, biramous appendages, all similar and equal in size, with the excep- tion of the inner branch of the first pair, which is exceedingl}^ large and is inwardly directed, meeting the corresponding branch of the opposite side in the median ventral line, just below the incubatory pouch. All the remaining branches are directed post-laterally. The surfaces of all the lamelhis are quite smooth. The uropoda consist of a single pair of simple appendages, similar in shape and size to the pleopoda. The incubatory pouch consists of five pairs of large lamelhe, over- 28589—05 34. 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. Govt Print. Off.


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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience