THE SPECIES OF AEGLA — SCHMITT 453 



E^. All three hepatic lobes well marked in specimens of fair size; in 

 mature or adult specimens anterolateral angles of at least first 

 two and usually all three lobes acute and sharply spiued ; movable 

 finger without a lobe on outer margin near base; ischium of 

 chelipeds with a conspicuous sharp fairly slender spine at distal 



end of inner margin of ventral surface uruguayana (p. 467) 



(f. Front only moderately wide, extraorbital sinus less than, half width of 



orbital sinus, often only one-third or less than one-third its width ; 



a well-developed orbital spine intervenes between the two sinuses; 



fixed finger at least with a definite lobular tooth of good size on 



prehensile margin ; movable finger definitely and normally with a 



spined lobe on outer margin near base; anteroventral border of 



epimeron of second (in lateral view, apparent first) abdominal somite 



generally just about straight, may at times be very slightly concave. 



Z)\ All three hepatic lobes well marked, their anterolateral angles acute 



and spined, each forming a decided offset in lateral margin 



(forming three steps, as it were before the cervical groove) ; 



anterior margins of protogastric lobes acute-angled, more sharply 



peaked perhaps than in any other species of Aegla. 



prado" (p. 470) 

 D". The three hepatic lobes plainly indicated but only the first well 

 marked and acutely spined at its anterolateral angle alone, form- 

 ing a distinct offset in the lateral margin of the anterior margin 

 of the carapace (before the cervical groove) ; anterior margins 

 of protogastric lobes more or less rounded off, or broadly 

 obtuse-angled. 

 E'^. Carpus of cheliped with ridge parallel to and above inner spined 

 margin armed with conical tubercles, of which the greater part 

 take the form of acute-tipped conical spines ; orbital spines 

 well set off from anterolateral ; posteriorly dorsal margin of 

 rostrum merges with general surface of carapace on a level with 

 protogastric lobes; palmar crest somewhat approaching sub- 

 disciform, impressed, with upturned margins, reminiscent of 



odebrechtii (p. 455 below) castro (p. 473) 



E". Ridge above inner spined margin of carpus armed with neither 

 spines nor acute conical tubercles, but scabrous, being furnished 

 with more or less transverse rows of small corneous scales; 

 orbital spine small and placed fairly close to anterolateral ; 

 posteriorly dorsal margin of rostral carina ending between 

 protogastric lobes well below general level of carapace behind 

 this point; palmar crest not subdisciform, narrow, longitudinally 



somewhat troughed or excavate franca (p. 476) 



^ Hands very thick and inflated and, though scabrous, smooth appearing, 

 as they are rounded off in all directions; inner margin of palm neither 

 crested nor spined, thick and broadly rounded off; fingers with lobular 

 tooth not at all, or at most only very obscurely, indicated ; fixed finger 

 of large hand very short and stubby looking (more so perhaps than 

 in any other species of Acgla), no lobe on outer margin of movable 

 finger near base ; dorsal anterior angle of epimeron of second ( in 

 lateral view, apparent first) abdominal somite (based on the very few 



" The median line of A. prado is usually more or less definitely angled the full length 

 of the carapace, in effect carrying the carination of the rostrum back to the posterior border 

 of the carapace in the form of a prominent ridge ; carination of this sort is found only In 

 this species and in A. denticulata under A", B^, this key, p. 454, in which it is very 

 pronounced. 



