14. NICORIA. 127 



with a broad yellow border. Head yellowish above, varicj^atcd with 

 blackish ; iicck and sides of head with pale and dark l)aiuls or 

 variegations. 



Length of shell 20 ccntim. 



Western South America. 



a. Hgr., spir. Esmeraldas, Ecuador. INIr. Fraser [C.]. I .m s 



b,c. d ? , shells. Esmeraldas, Ecuador. Mr. Fraser [C.]. ( ^^^'Pes.; 



d. $,sttta. Mendoza. 



c. (S , skel. i" Zoological Society. 



G. Nicoria ruhida. 



p. 659, fig., and 1871, p. :296, pi. xxviii. 

 (Jhelopus moxicaiuis, Bocoicrt, Joiirn. de Zool. v. p. 387(1870); Sumi- 



chrast, Bull. Soc. Zool. France, 1880, p. 166. 

 Emys rubida, Oimth. Biol. C.-Am., licpt. p. 8, pi. viii. fig. C (1885). 



Habit of a Testudo. Shell moderately depressed, with a mere 

 trace of a keel. Vertebral shields constantly much broader than 

 long, nearly as broad as the costals ; nuchal small, sometimes absent. 

 Plastron large ; the width of the bridge exceeds the length of the 

 posterior lobe, which is angularly emarginate ; front lobe truncate 

 or openly emarginate anteriorly. Axillary and inguinal shields 

 present, small ; the suture between the pectoral and abdominal 

 shield on each side forming a strong curve. Head moderately 

 large, with short vertically truncate snout ; upper jaw feebly hooked, 

 not notched ; the width of the mandible at the symphysis equals 

 the horizontal diameter of the orbit. No trace of web between the 

 digits. Tail not longer than the head. Carapace olive or brownish, 

 Avith a central ocellus and concentric yellowish lines on each shield, 

 these markings becoming more indistinct in the adult ; plastron 

 with broad yellow border, dark brown in the middle and on a band 

 across the bridge. Head and neck above pale brown, with large, 

 rather varial)le, bands and rings of red (yellow in spirit), edged 

 Avith blackish ; a large, horseshoe-shaped band on the crown ; limbs 

 yellowish, with black and red markings. 



Length of shell 15 centim. 



Mexico. 



a. $ , stflU. San Juan del Ptio. M. Kcboucli [C.]. ] (Types of 



h, c. 2 '^ yS-f "^'"^^^ Juan del Rio. M. Eebouch [C.]. > Ji. rnexi- 



shells. ) cana. ) 



d, e, f. 6 2} Tapana,Tehuantepec. F. Sumichrast [C.]. 



spir. 



(/. 5, shell. Tapana,Tebuan tepee. F. Sumichrast [C.]. 



