chamberlin: the chilopoda of brazil. 203 



Spiracles all circular; the first one much larger than the second and 

 the latter likewise considerably larger than the third; the others 

 gradually decreasing caudad, in the posterior region becoming minute. 



The first sixteen sternites with the caudal border produced at the 

 middle, the distinct process in each case fitting into a corresponding 

 exca\ation in the succeeding segment, ^>ntral pores present on all 

 sternites excepting the ultimate; on the sternite as far back as the 

 twenty-fifth or twenty-sixth, the pores are in a single distinct sub- 

 circular area; caudad of this the areas are more irregular, with a 

 distinct tendency for each to become longitudinally divided into two 

 areas or geminate. 



Last ventral plate very wide; sides nearly straight, strongly con- 

 verging caudad; caudal corners rounded; caudal margin a little 

 crenately incised a little each side of the middle. Rather densely 

 clothed with fine short hairs, especially on the caudal portion. 



Coxopleurae subdensely clothed over the ventral area with fine short 

 hairs. 



First pair of legs shorter and more slender than the second, the next 

 few pairs gradually attaining the full size; anterior pairs of legs con- 

 spicuously more robust than the posterior ones. 



Anal legs in the female much longer than the penult; very slender. 

 Ultimate joint longer than the penult, very slender and ending in a 

 minute membranous point but with no trace of a real claw. Hairs 

 long and sparse. (Plate 5, fig. 3). Pairs of legs fifty-nine. 



Length 40 mm. 



Locality. — -State of Parahyba: Independencia ! (Mann and Heath). 



The present species differs from plusiodonta (Attems) in the much 

 greater length and dift'erent shape of the cephalic plate, this in plusio- 

 donta being only about as long as wide; in having the prebasal plate 

 exposed; in the greater number of pairs of legs; in the character of 

 the ventral pore areas, etc. The two species are similar in regard 

 to the processes and pits of the anterior plates. 



Adenoschendyla plusiodonta (Attems). 



Pediniunguis plusiodontus Attems, Zool. jahrb. Syst., 1903, 18, p. 193, pi. 13, 

 fig. 18; Chamberlin, Proc. Acad. nat. sci. Phil., 1904, p. 654. 



Adenoschendyla plusiodonta Brolemann et Ribaut, Nouv. Arch. Mas. hist, nat,, 

 1912, ser. 5, 4, p. 106. 



Locality. — State of Santa Catherina: Blumenau. 



