VOL. XI, PP. 93-99 APRIL 26, 1897 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



SYNOPSIS OF THE AMERICAN SPECIES OF PALICUS 



PHILIPPIC (= CYMOPOLIA If ROUX), WITH 



DESCRIPTIONS OF SIX NEW SPECIES. J 



BY MARY J. EATHBUN. 



The following summary is based on a study of the specimens 

 collected by the steamers ' Bache,' ' Blake,' and 'Albatross,' 

 and is preliminary to a complete report on the genus. 



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. Meri 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 by Philippi, "Palicus granulatus, 

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

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

 Roux, bearing the inscription 'Palicus granulatus,' are preserved in the 

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



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

 a genus of polyps. 



t Published with the permission of the Secretary of the Smithsonian 

 Institution. 



% Examined through the courtesy of Professor Agassiz. 



21 BIOI,. Soc. WASH., VOL. XI, 1897 (93) 



