. Bulletin - United States National Museum. Science. Fig. 703.— portork'ensis. «, ab- DOMEN. ''. Uropoda (INSIDE). Spliuruniscus Richardson, Proc. U. S. Nat. Mus., XXIII, 1901, p. 573. Locality.—El Yunque, Porto Rico, at an altitude of 2,800 feet. Body oblong, very convex, con- tractile into a ball. Surface per- fectly smooth. Head set in first thoracic segment; front straight; epistoma forming a triangular shield. Eyes very small. An- tenna' with tlagellum composed of three joints. First thoracic segment twice as long as head, and longer than any of the other segm
. Bulletin - United States National Museum. Science. Fig. 703.— portork'ensis. «, ab- DOMEN. ''. Uropoda (INSIDE). Spliuruniscus Richardson, Proc. U. S. Nat. Mus., XXIII, 1901, p. 573. Locality.—El Yunque, Porto Rico, at an altitude of 2,800 feet. Body oblong, very convex, con- tractile into a ball. Surface per- fectly smooth. Head set in first thoracic segment; front straight; epistoma forming a triangular shield. Eyes very small. An- tenna' with tlagellum composed of three joints. First thoracic segment twice as long as head, and longer than any of the other segments. Cox- opodites not distinct from seg- ment. First two abdominal segments with the lateral parts concealed, the three following ones con- tinuing the outline of the body. The terminal segment is twice as broad as long, very short, widely rounded posteriorly. The basal joints of the uropoda are large,. Fig. 704.— portoricensis. a, second K 51f. 6, X 27^. fi, Outer lamella of first maxilla, x 51 |. d. Inner l.\.mella of .' x 51f. f, Mandible. X 27i. «SeeBudde-Lnnd for cliaracters of genus, Crustacea Isopoda Terrestria, 1885, pp. 44-45. &This species differs from all the other Arniadillidid;!' in liaving the inner lobe of the first ; armed with three plumose ijrocesses instead <if two. med several specimens and find that they agree in this characti'r. I have exam-. 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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