THE SPECIES OF AEGLA — SCHMITT 457 



G^ Orbital spine, or the orbital spiiuile usually taking its place, 

 generally present on one or both sides of front ; extraorbital 

 sinus well formed but narrow or reduced to a mere notch 

 between orbital spinule and anterolateral spine; in the 

 absence of a real orbital spine or spinule (as in about half 

 the representatives of A. laevis) virtually always a well- 

 marked, often abrupt, sometimes nearly right-angled offset 

 between inner slope or margin of anterolateral spine and 

 outer end of orbital margin ; rostrum somewhat narrowly 

 lingulate, subparallelism of margins of midsection often 

 rather pronounced." 

 H^. Movable finger with distinct and usually spined or spinu- 

 lated lobe on outer margin near base; palmar crest only 

 somewhat excavate or impressed with upturned and dis- 

 tinctly serrate spine or sharp-scaled tipped margins. 



laevis (p. 504) 

 IP. No lobe on outer margin of movable finger near base ; palmar 

 crest noticeably excavate, impressed, or longitudinally 

 troughed, margins upturned and more or less entire, obso- 

 lescently if at all serrate (remotely somewhat reminiscent 

 of the palmar crest in odebrechtii) . 



laevis talcahuano (p. 508) 

 I*'. Rostrum distinctly and sharply triangular, lateral margins taper- 

 ing from base to tip (in no part at all subparallel), rostrum 

 in lateral view running about or nearly straight forward, with 

 only slight if any upward inclination distally (neither upcurved 

 nor recurved) ; orbital spine or spinule and extraorbital sinus, 

 though sometimes small or narrow, always definitely present. 

 G\ Rostrum moderately broad and, though sharply triangular, 

 rather broadly so, gradually and not particularly narrowed 

 distally; rostral carina dorsally furnished with two more or 

 less distinct rows of corneous scales for greater part of 

 length, anterior to middle of free portion of rostrum two 

 rows or scales running together to form a single sometimes 

 somewhat scattered row, which continues about to the 



anterior extremity ; areola widening behind abtao (p. 510) 



Gl Rostrum narrowly and sharply acuminate (stilletolike) ; rostral 

 carina sharp crested for greater part of its length and fur- 

 nished with a single at times slightly wavering row of 

 corneous scales, which in some specimens tends to become a 

 double row of more or less closely juxtaposed scales a little 

 before distal extremity of rostrum ; areola narrowing 

 posteriorly riolimayana (p. 513) 



^ The rostra of the two species falling within this section of the key, in general, so far as 

 the specimens I have seen are concerned, look somewhat amorphous, as if they had been 

 partially melted and then solidified. 



