69 



concavity absent. Postero-proximal margin strongly convex. Articulation with PRR strong 

 along the entire length of the proximal arch; long and broad; strongly recurved. Antero- 

 dorsal surface concave. Postero-dorsal surface weakly concave. Posterior margin deeply 

 concave. Distal arch markedly reduced anteriorly and posteriorly; strikingly elongated 

 distally; curved ventrad along its entire length. Apex strongly curved ventrad and posteriad; 

 aciculate. Distal margin weakly convex; appears twisted. - Ventral view: Proximal arch 

 with a very broad ridge. Distal arch with a small ridge. Posterior margin with a broad 

 ridge: medially narrow. 



Second Axillary (Fig. 109) 

 Radial Fulcalare absent. 



Ridges - Dorsal view: Proximal ridge entire: indistinct from lobe: strongly sinuate. Anterior 

 section completely concealed by the distal ridge. Antero-median to postero-median section 

 strikingly enlarged above and laterad over the distal ridge; extremely slender; curves 

 abruptly postero-proximad from the antero-median to postero-median. Postero-median 

 section moderately broad and long; moderately extended past the posterior margin of the 

 lobe; curves abruptly postero-distad and ventrad over, and conceals, the distal ridge 

 posterior. Posterior section weakly enlarged above the distal ridge; oriented posteriad. 

 Distal ridge weakly distinct from lobe. Apex enlarged; strongly curved ventro-proximad; 

 convex; strikingly narrowly falcate; short. Anterior section moderately short; extended 

 antero-proximad; strongly recurved. Anterior to median section extends adjacent to, but 

 lies below, the proximal ridge. Posterior section concealed by the proximal ridge. - Ventral 

 view: Proximal ridge stout; curved distad; distinct from lobe. Apex broad and truncate. 

 Anterior to antero-median section broadly digitate; lies adjacent to the distal ridge. Median 

 to posterior section obscured by the distal ridge. Distal ridge broad; short. Anterior to 

 median section moderately broad; curved proximad. Median and posterior sections arise 

 from the posterior and proximal margins of the distal lobe; distinct from lobe; narrow and 

 short. Median section strongly convex. Postero-median section not waisted. Subalare 

 tendon attachment point weakly spatulate; moderately long and narrow; apically strongly 

 curved ventrad around the dorso-proximal ridge terminus; posterior margin rounded; 

 extends weakly postero-distad from the median; strongly recurved; visible dorsally. 



Body - Dorsal view: extremely short. Proximal lobe very long and narrow; Ungulate; 

 oriented postero-proximad; arises posteriorly from the ridge; enlarged to the same dorsal 

 plane as the ridge; weakly sclerotized; concave. Base narrow. Apex narrowly rounded; 

 weakly curved anteriad. Anterior margin concave. Posterior margin strikingly enlarged; 

 broadly convex. Distal lobe very long and narrow; Ungulate; longer than the proximal 

 lobe; arises anteriorly from the ridge; weakly sclerotized; planate. Apex rounded. Anterior 

 margin normal length; weakly concave. Posterior margin straight; reduced. - Ventral view: 

 Proximal lobe moderately large; convex. Posterior wing process junction formed as an 

 extremely long, ridge-like convexity; shifted posteriad to occupy the extreme postero- 

 proximal corner of the subalare tendon attachment point. Distal lobe moderately long and 

 narrow; discontinuous with ridge; planate. 



