378 BULLETIN 97, UNITED STATES NATIONAL MUSEUM. 



F'. No ol)Iiqiie stridulating ridge on inner surface of pnlin. Upper 



niargin of utliit HM.ro •.•.!• ■■•>. stoiodaci i/Iiik. \\. 4Hj. 



E*. Carapace strongly narrowed beliind Icptoddvlijhi, p. 420. 



D*. No abdominal segments fused. Fingers of large cheliped three or 



four times as long as palm fcalac, p. 420. 



C No obli(pie tuberculate ridge on inner surface of palm extending upward 

 from lower margin. 

 D\ Abdomen of male very wide, no segments fused. Antero-lateral 



angles obtuse and blunt subcj/Undrivd. p. 419. 



D*. Abdomen of male moderately wide, third to sixth segments 

 fused. Antei'o-laterul angles either acute or right angles. 



latinianus, p. 422. 



ANALOGOUS SPECIES ON OPPOSITE SIDES OB' THE CONTINENT. 

 Atlantic. raclflc. 



nwracoani. tnonilifcra. 



hctcroclttloa. piiiKcps. 



tpccinsn. crcnulafa. 



subcylindrica. ttcnodaciylus. 



Species on both sides of the continent : mordax. 



Species not determinable: 



^^ Gelasimus pugilator'''' Cano/ not (Bosc). Panama. 



^^ Gelasimus vocator'''' Cano.^ Gulf of Panama. 



Vca vocator Doflein.- Guayaquil, Ecuador. 



Vca vocator^ var., Nobili.^ Esmeraldas, Ecuador. 



UCA MARACOANI (Latreille). 

 Plate 130, Hgs. 2 and 3 ; plate 131, fig. 3. 



Maracoani Marcckave de Lierstad, Hist. Rer. Natur. Brazil, 1G48, p. 184, 



text-tig.; Brazil. 

 Cancer palnstris cvniculos snb terra agcns Sloane, Nat. Hist, Jamaica, 



vol. 2, 172o, p. 2G0; Jamaica. 

 Ocypodc maracoani Latkeille, Hist. Nat. Crust., vol. G (an 11) 1S02-1S03, 



p. 4G; Cayenne. 

 Ocypodc hctcrochclos Oliviee, Eucyc. M6Hi., lusectes, vol. 8, 1811, p. 417 



(part). 

 Gclasiina maracoani Latreille, Nouv. Diet. Hist. Nat., vol. 12, 1817, p. 519; 



Tabl. Encyc. Rl^th., Crust., vol. 24, 1818, pi. 29G, fig. 1. 

 Conoplax maracoani Lamakck, Hist. Nat. Anim. sans Vert., vol. 5, 1818, 



p. 2r)4. 

 Gelasimus maracoani Milne Edwards, Ann. Sci. Nat, ser. 3, vol. 18, 1852, 



p. 144 [lOSJ. pi. 3. figs. 1-1?;.— Ki.NGSi.EV, IMoc. Ac:id. Nat. Sci. I'hila- 



delphia, 18S0, p. 13G, pi. 9, fig. 1 (part) ; not G. armatus Smith, nor 



O. natalcnsis Wilson, MS. 



Diagnosis. — Front Aery narrovr, spatuliform. Movable finger of 

 large claw widest in distal half. Fingers rough. Carapace v^'ith 

 dorsal side-margins. 



J Poll. Soc. Nnt. Napoll. ser. 1. vol. 3. ISRft. p. 2.33. 



* .SUzungsl). k. iMiyiT. Akafl. Wiss.. niath.-ph.vs. CI., vol. 29. 1809. p. 191. 



•Boll, Alus. Zool. Auat. couip, R, Uuiv. Torluo, vol. lU, No. 415, 1901, p. 49. 



