Boone, Crustacea, Cruises of ''Eagle" and "Ara," 1921-28 71 



The external maxillipeds have the ischium much longer and dis- 

 tinctly wider than the merus and the inner distal angle produced 

 into a rounded lobe which projects almost as far forward as the inner 

 distal angle of the merus; the merus has its inner lateral margin 

 rounded a little and is more oblique than excavate across the inner 

 margin for the reception of the palpi. 



Synonymy. — Cancer dorsettensis Pennant, Brit. Zool., vol. IV, p. 10, 

 fig. 1, 1777. 



Inachus dorsettensis Leach, Malac. Podophth. Brit., pi. 22, figs. 1-6, 

 1815. — J. BoNNiEE, Catal. des Crust, de Concarneau, p. 12, 1887 

 and synonymy). — ^A. Milne Edwards and Bouvier, E. L., Result, 

 des Camp Scient. de 1'" Hirondelle " (Supplement) et de la 

 "Princess AHce," Ease. XIII, p. 45, 1899; Exped. Sci. Travail- 

 leur et du Talisman Crust. Decap., part 1, p. 143, 1900. — 0. 

 Pesta, Die Decapoden Fauna der Adria, 1918, p. 321 and very 

 full synonymy. 



Cancer scorpio Fabricius, Entom. Syst., t. II, p. 462, 1793. 



Inachus scorpio Fabricius, Entom. Suppl., p. 358, 1798. 



Maia scorpio Bosc, Hist, nat des Crust., t. I, p. 352, 1802. 



Macropus scorpio Latreille, Hist. Nat. des Crust., t. VI, p. 109, 1803. 



Genus : PODOCHELA Stimpson. 

 Podocliela riisei Stimpson. 



Plate 19. 



Name : This species was named for a Mr. Riis, a Danish gentleman 

 associated with governmental work of the Danish West Indies, who 

 collected many new and rare forms of the West Indian fauna. 



Diagnostic characters: Carapace roughly triangulate, rostrum 

 rounded, with a median dorsal carina ; one hepatic tubercle ; two gas- 

 tric, and one cardiac. Propodi of leg unequal, that of second leg two 

 and one-half times as long as related dactyl. Dactyli falcate. 



Type : The type was collected in St. Thomas, Virgin Islands, but it 

 is no longer extant. 



Distribution : A rather abundant species from shallow water down 

 to 50 fms., from Beaufort, N. C, to the Florida Keys ; also taken in 

 Bermuda, the Bahamas, Cuba, Jamaica, Porto Rico, St. Thomas, and 



