THE MYRIAPODA OF NORTH AMERICA. 167 



ff. Claw of preliensorial legs with a basal tooth LIXOT.ENIA" Koch. 



ee. Penultimate pair of legs short and thick, attenuated, clawless; seg- 

 ments about 150 STYL< >i,.ic.Must Karsch 



cc. Exterior part of first maxilla- entire. 



h. Claw of prehensorial legs entire; dorsal plates silicate. 



Mi:iN'EKTiAt Bollman. 

 lih. Claw of prehensorial legs biincised ; dorsal plates not snicate. 



DIGXATHODOX Meinert. 



aa. Mandibles with a dental plate and several pectinate plates. 

 i. Dorsal plates sulcate. 

 j. Mandibles with several pectinate plates. 



STIGMATOGASTER Latzel. 

 jj. Mandibles with a single pectinate plate. 



fc. Claw of max. palpus pectinate; labrum free in the middle; 

 outer part of first maxilhe with trace of palpiform process. 



PEcxixirxGUisii Bollmau. 



kk. Claw of max. palpus not pectinate; labrum not free in the 

 middle; outer part of first maxilhe without trace of palpi. 



form process SCIIEXDYLA Bergsoe and Meinert. 



ii. Dorsal plates not sulcate BOTHRIOGASTER Szeliwauoff. 



Subfamily VII. HIMANTARIIN^E. 



Analysis of the yenern of Himantariince. 



a. Pleural plates between spiracle and dorsal plates in one row. 

 1>. Spiracle plate much larger than the prescutelluni; mandib*ular stipes with 



7 or 8 pectinate plates ORYA Meinert. 



bl>. Spiracle plate almost as large as the prescutellum ; mandibular stipes with 4 



or 5 pectinate plates ORPHN.EUS Meinert. 



aa. Pleural plates between spiracle and dorsal plates in two or three series. 

 t'. None of the posterior segments tuberculate. 

 (1. Spiracle plate larger than the prescntellum ; pleUr;e of anal segment 



small, not porous NOTIPHILIDES Latzel. 



dd. Spiracle plate smaller than the. prescutellum; pleune of anal segment 



very large, porous HIMANTAUIUM Koch. 



cc. Some of the posterior segments tuberculate (JOXIHREGMATTS Newport. 



IXDIAXA UNIVERSITY, .)/.// /,s', 



* Linolirii'ut Koch (--=ScoIi'>i>l<nn'n IJergsi'ie and Meinert). 



t This genus may not belong here. Knrseh's description is very indefinite and is 

 compared with I/nuitirnia and Himantamum. 



{ Meinertiu Noin. gen. nuv. for Hrt>l<i)>liiliiK Meinert, which is preoccupied. Named 

 after Dr. Fred. Meinert, of Copenhagen. 



vS r<'cti)iiuH</nix Hollman. [Bull Hi. I'. S. Nat. Mus., ]i. li:*.") This genus is'divisilile 

 into two subgenera : 



a. Anal pair of legs (!- join ted , Pectiniunguia. 



aa. Anal pair of legs fi-joiiited \iinnointx Hollman 



