484 STALK-EYED CRUSTACEA 



or four below. The second pair of legs is very long and 

 strong. — {B. Jmnaicensis^ 



b. Rostrum has thirteen teeth above and three or four 

 below. Second pair of legs is of moderate length. — {B. 

 aztecus^ 



c. Rostrum has ten to twelve teeth above and three 

 or four below. Second pair of legs short and thin. — {B, 

 viontezunicu.) 



d. Rostrum has eleven teeth above and four below. 



d}. There are no teeth on inner margia of fingers of 

 large hand. Sides of carapace below hepatic spine smooth. 

 — {B. brasiliensis. ) 



e^. There are some large teeth on inner margin of 

 fingers of large hand. Sides of carapace below hepatic 

 spine rough. — {B. 7iatterej'i.) 



B. Of the largest 

 leg the fifth joint is 

 longer than the palm. 



e. Rostrum armed with six or seven teeth above, upon 

 the posterior two-thirds, and with the same number below. 

 — {B. lamarrei.) 



f. Rostrum armed with eight to ten teeth above and 

 five or six below. — {B. forceps}) 



g. Rostrum armed with nine to twelve teeth above 

 and eight to twelve teeth below. — {B. ensiadtis.) 



h. Rostrum armed with six or seven teeth toward 

 the base and three at apex above, and with seven teeth 

 below. — {B. jelskii.) 



II. A wide space between fingers of large hand when 

 closed. 



i. Rostrum armed with thirteen or fourteen teeth 

 above and three or four below. — {B. spiniinajius^ 



