NOTES ON SOME SPECIMENS OF A SPECIES OF 



ONYCHOPHORE (OROPERIPATUS CORRADOI) 



NEW TO THE FAUNA OF PANAMA 



By AUSTIN HOBART CLARK 



Through Professor T. D. A. Cockerell I have recently received 

 four specimens of a species of Peripatus collected at Ancon, Canal 

 Zone, by Mr. J- Zetek, which represent'a genus, as well as a species, 

 not previously definitely known as an inhabitant of the region. 



These specimens are now in the collection of the United States 

 National Museum. 



OROPERIPATUS CORRADOI (Camerano) 



J'l-ri flatus corradoi 1898. Camerano. Boll. Mus. Zool. ed Anat. comp. di 

 Torino, vol. 13, No. .316, p. 2. — 1898. Camerano, Atti R. Ace. Sci. di 

 Torino (2), vol. 33, pp. 308-310, figs. A and B; p. 591. — 1905. Bouvier, 

 Ann. des. sci. nat. (9), vol. 2, p. 120, pi. 3, fig. 15 ; pi. 4, figs. 29, 30; text 

 figs. 6, p. 15; 18, p. 20; 42, p. 38; 63, p. 124; 64 and 65, p. 125 (the 

 complete synonymy is given). 



Oropcrifatiis corradoi nn3. A. H. Ci.ark, Proc. Biol. Soc. Washington, vol. 

 26, p. 16. 



Locality.- — Ancon, l\anama Canal Zone. 



Material. — Four specimens, two males and two females. 



Notes. — One of the females is 34 mm. long and 4 mm. broad, and 

 possesses twenty-seven pairs of ambulatory legs ; the other is 34 mm. 

 long and 3.5 mm. broad, with twenty-nine pairs of ambulatory legs. 



Of the males one is 19 mm. long and 2.3 mm. broad, with twenty- 

 four pairs of ambulatory legs, and the other is 19 mm. long and 2.5 

 mm. broad, with twenty-five pairs of ambulatory legs. 



All the specimens are dorsally dark brown in color, with a narrow 

 median line of darker, and ventrally light brown. 



The dorsal folds in the two females are all of approximately the 

 same width, but in the males there is a more or less distinct alterna- 

 tion of broader and narrower folds; there are no incomplete folds. 



Some of the primary papillae of the back are very much more 

 developed than the others, and lighter in color, and these enlarged 

 light colored papilUe show a more or less regular arrangement which, 

 however, is very much less evident in the females than in the males. 



Smithsonian Miscellaneous Collections, Vol. 63, No. 2. 



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