476 PROCEEDIN'GS OF THE NATIONAL MUSEUM vol. 9i 



When turned over these specimens righted themselves very handily, 

 a faculty not so apparent in the larger parana specimens collected 

 at Rio Negro, Parana, Brazil. Small specimens would "freeze" 

 when taken hold of by one leg, but not the larger individuals. 



Distribution. — So far collected only in the general region about 

 the town of Castro, Parana, Brazil, chiefly in the Rio lapo near the 

 town, and for some distance up and down stream. In obtaining the 

 considerable series of specimens I brought back with me, I was 

 most helpfully assisted by the Harry Preston Midkiffs, of the Insti- 

 tuto Christao, by Camille Cunha and several of his nephews, and by 

 Werner Nickol, Conrado Pusch, Amacleto Baptista, and a friend of 

 theirs who took me on an all-day automobile trip to the Hacienda 

 Marumby, where we obtained additional material. Air and water 

 temperatures there were about 68° F. At Castro on October 20 at 

 about 9 : 30 a. m. the air was 72° F., water 66° F. 



AEGLA FRANCA, new species 



Figure 51 ; Plate 26, D 



Aeglea laevis (especie duvidosa) LuEOimwALDT, Rev. Mus. Paulista, vol. 11, p. 431 

 (Sep., p. 5), 1919. 



Descri'ption. — A small species; the largest so far seen attains a 

 length of carapace and rostrum together of 24 mm. 



Carapace moderately convex, front relatively narrow. Rostrum 

 moderately broad, ridge-roofed, lateral slopes of "roof" may be 

 slightly concave ; exceeds eyes by very little more than the length of 

 the cornea; carinated to tip, carina furnished with a few irregular, 

 fairly closely set rows of small corneous scales; posteriorly the 

 dorsal margin or carina of the rostrum ends in a depression between 

 and appreciably below the general level of the protogastric lobes of 

 the carapace ; front relatively narrow. 



Epigastric prominences not at all well marked, obsolescent; ante- 

 rior margins of protogastric lobes, on the other hand, are very 

 prominent, acute angled, and almost tuberculiform apically (some- 

 what as in ^. prado). 



Orbital sinus of moderate size; orbital spine small and set close 

 to anterolateral spine, making extraorbital sinus appear very small, 

 more a small U-shaped notch than a sinus. 



Anterolateral spine appears to be fairly short, yet it reaches at 

 least to level of middle of cornea, often beyond. Anterolateral angle 

 of first hepatic lobe acute, corneous-spine tipped, second and third 

 lobes fairly well marked, scabrous or minutely spinulated, but not 

 spined. 



Large hand only moderately inflated, moderately broad. Movable 

 finger has a small but definite spined lobe on outer margin near base. 



