Vol. XI, pp. 93-99 April 26, 1897 



PROCEEDINGS ^^ 



OF THE / \ 



BIOLOGICAL SOCIETY OF WASHINGTON^"^ "■ 



J L I B R A "^ 



nj- 



SYNOPSIS OF THE AMERICAN SPECIES OF PALICL 

 PHILIPPIC (= CYMOPOLIAf ROUX), WITH 

 DESCRIPTIONS OF SIX NEW SPECIES. t 



BY MARY J. RATHBUN. 



'I'he following summary is based on a stucLy of the s})ecimens 

 collected In' the steamers ' Bache,' ' Blake,' § and 'Albatross,' 

 and is preliminary to a complete report on the gen us. 



The genus Palicus is remarkable not only as the sole repre- 

 sentative of a family, but as exhibiting two forms in the male of 

 at least one species (P. alternatus). 



Synopsis of American Species. 



A. Length of second ambulatory leg less than twice the width of the 

 carapace. 

 B. Crests on the second and third abdominal segments, and on the 

 fifth sternal segment not forming conspicuous laminiform expan- 

 sions visible in a dorsal view. 

 C. IMeri of ambulatory legs with strongly dentate anterior crest. 

 Lateral margin of carapace with 4 teeth besides the orbital. 



cristatipes A. Milne Edwards. 



*I have not seen the following paper l)y Philippi, "Palicus granulatus, 

 ein neues Genus der riickenfiissigen Krabben." <Zweiter Jahresber. d. 

 Vereins f. Naturk. in Cassel, 11, 1838. Specimens of Cymopolia caroidi 

 Roux, bearing the inscription 'Palicus graiiulatus,^ are preserved in the 

 Museum at Berlin, and are perhaps Philippi's types. 



■\ Cymopolia used by Lamouroux, Hist. Pol. Coral. Flex., 292, 1816, for 

 a genus of polyps. 



JPulilished with the permission of the Secretary of the Smithsonian 

 Institution. 



I Examined through the courtesy of Professor Agassiz. 



21 — Bior,. Soc. Wash., Vol. XI, 1897 (9:;) 



