VOL. XIX, PP. 113-114 SEPTEMBER 6, 1906 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 





I 



V 



A NEW SCYLLARIDES FROM BRAZIL. 



BY MARY J. RATHBUN. 



By permission of the Secretary of the Smithsonian Institution. 



The specimen here described was among those taken by the 

 U. S. Fish Commission steamer Albatross during her voyage 

 around the Horn in 1887-88. 



Scyllarides brasiliensis sp. nov. 



Type. Female, in alcohol. Bahia, Brazil. U. S. Fish Commission 

 steamer Albatross, December 21, 1887. Cat. No. 21,612, U.S. National 

 Museum. 



Characters. Very hairy. Carapace varying little in width. Orbits near the 

 anterior corners ; distance from orbit to side margin f of distance from 

 orbit to middle of carapace ; transverse diameter of orbit much less than 

 longitudinal diameter. Inner margins of first three movable joints of 

 antennae dentate, teeth flattened, not erect; antepenult segment without 

 prominent teeth at the angles. 



First segment of abdomen with two circular and distant red spots, the 

 interspace greater than the distance from either spot to the outer margin 

 of the segment. Second to fifth segments medially carinate. 



Crests on the meropodites of the legs becoming successively less promi 

 nent from the first to the fifth pair; the same is true of their terminal 

 teeth. Very slight crests on the carpopodites ; propodites rounded above. 

 Legs of third to fifth pairs rather long and narrow. 



Measurements. Length of carapace, 86.5; greatest width, 80.5 mm. 



Remarks. Allied to S. xguinoctialis (Lund).* 



* Skrivt. Naturh. Selsk., Copenhagen, II, pt. 2, p. 21, 1793. 

 25 PKOC. BIOL. Soc. WASH., VOL. XIX, 1906. 



