chamberlin: the chilopoda of brazil. 201 



original description. It appears not to be a true Nannophilus under 

 which genus it was described, and is most probably a member of 

 Schendvlurus. 



Adenoschendyla Brolemann and Ribaut. 



Bull. Soc. cnt. France, 1911, p. 192; Nouv. Arch. Mus. hist, nat., 1912, ser. 5, 4, 

 p. 194. 



Three species and one variety of this genus, which is peculiar to 

 tropical and subtropical America, are known from Brazil. Of these, 

 one is here first described. 



The genus is close to Pectiniunguis. Pectiniunguis and Adeno- 

 schendyla lack claws on the anal legs in contrast with species of the 

 southwestern United States {montereus, heathi, etc.) The latter 

 species differ as well in other respects and may be placed under a 

 distinct genus to be known as Nyctunguis (P. montereus Chamb., 

 type). 



Key to Species. 



a. Prebasal plate not exposed; none of the pore areas of the sternites 



are divided A. plusiodonta (Attems). 



aa. Prebasal plate exposed; some of the sternites of the median or 

 posterior region of body longitudinally divided or geminate. 

 b. Head much longer than wide (ratio 4:3 to 4:3.5), pairs of 

 legs fifty-three to fifty-nine. 



c. Pores present on first sternite; head wider caudad than 

 cephalad, longer than wide in ratio 4:3; pairs of legs 



59 (9); length 40 mm A. parahybae, sp. nov. 



cc. No pores present on first sternite; head of same width 

 anteriorly and posteriori}^, longer than wide in ratio 4: 3.5; 

 pairs of legs 53 (cf )-55 ( 9 ) ; length 25 mm. 



A. geayi Brolemann and Ribaut. 

 bb. Head but slightly longer than wide (ratio not more than 

 10:9), widest cephalad; pairs of legs forty -seven to fifty- 

 three. 

 c. Claw of palpus of second maxillae of usual form. 



A. imperfossa (Brolemann). 

 cc. Claw of palpus of second maxillae globular at base. 



A. imperfossa holhonyx Brolemann and Ribaut. 



