THE MYRIAPODA OF NORTH AMERICA. 



159 



TABLE SHOWING THE VARIATIONS IN SOME OP THE MORE IMPORTANT SPECIFIC CHARACTERS. 



ft 





O cti w 



$ us 



« * Spines on la- 



i 

 ft 





0J « "J 



2 « 



o eg E 



* is , 



i M 



Spines on la- 



"' . 



rd 



.2 i? bo 



i — 7~ ^g 



S B 



teral anal 





■5 





°-^E° 



a =3 



teral anal 



s a 



a 



05 



O C) a t; 



■S s -1 i 



ft ffi .2, ft 



© O t_ 



W a ° 



•9 3 g i 



ft «j -^ ft 



* 2 ffl 



K » 



g aj g 

 'ft fl ft 



ppendages. 



s 



■ 



IS 



5 <~ ° 

 o o ^ 

 O 



« « a t 



ftS .2, ft 



EC 



si ° " 



CO « 4B 



a ^ .£ '3 



02 



° eS & 

 ED <u 



.g « £ 



'ft p ft 



QQ 



appendages. 



Api- 

 cal. 



Mar- 

 ginal. 



Api- 

 cal. 



Mar- 

 ginal. 





f 



4 



4 



2 2 4 1 4* 



3 



8 



1 





i 4 



4 



2 3 431 



4 



6 



i 



CO 



4 



5 



2 3 14 3 



3 



7 



1 







4 



3 



2 13 3 1 



Q 







6 



l 



&5 





4 



5 



13 3 3 



2 



(3 











4 



3 



2 3 4 3 



4 



5 



2 



-rj 





4 



5 



2 3 3 



2 



6 











4 



5 



2 3 8 3 



3 



6 







Cm 





4 



G 



2 3 5 13 



3 



5 



1 







4 



4 



2 3 4 3 



3 



7 



1 



° 





4 



5 



3 8 4 3 



4 



8 



1 







4 



5 



3 8 4 8 



4 



7 







*3 





4 



6 



2 12 4 1 



4 



6 







338 





4 



5 



3 3 4 3 



4 



6 







CJ 



* 



8 



5 



2 12 3 3 



4 



3 



2 



* 



A rep 

 lain. 



5 



8 3 5 3 



5 



G 



1 



p 





5 



5 



2 3 3 2 



4 



8 



1 







4 



5 



4 2 5 4 



3 



7 



1 



0} 





4 



4 



2 3 3 2 



5 



7 



1 







4 



5 



43514 



5 



7 



1 



a. 





4 



5 



2 3 4 12 



5 



5 











4 



7 



2 2 2 4 2 



6 



G 



1 







4 



5 



2 8 5 13 



4 



G 



2 







4 



6 



4 2 2 43 



4 



6 



1 



H 





8 



5 



3 2 4 8 



4 



G 











4 



G 



2 4 4 4 



4 



7 



1 





2 



5 



2 3 3 13 



4 



5 



1 







u 



f 



1 ? ? ? 



? 



7 



1 



'210 



(4 



5 



2 13 5 3 



3 



7 



1 







' 4 



5 



8 2 4 4 4 



5 



G 



1 



14 



5 



2 4 5 3 



8 



5 



1 







4 



5 



8 5 5 3 



4 



5 



1 





5 



11 



2 3 4 3 2 



8 







1 



339 



■ 



It 



6 



3 15 44 



4 



G 



1 



■f-837 



4 



'I 



? ? ? 



f 







1 







5 



3 4 54 



4 



6 



1 





4 



1 



2 2 1 



4 



7 



1 







f 4 



G 



8 8 5 4 



4 



7 



1 



242 



1 ^ 



14 



J 



1 4 



3 



4 3 4 3 



3 



7 



1 







4 



7 



2 3 14 3 



2 



8 



1 





6 



2 2 4 3 



4 



G 



1 







4 



5 



3 3 5 4 



4 



8 



1 





5 



2 3 5 5 



4 



4 



1 



227 





4 



10 



3 4 3 3 



6 



7 



1 



13S 



6 



2 4 2 4' 4 



4 



7 



1 



■ 



4 



5 



3 2 3 4 3 



2 



6 



1 





U 



5 



13 5 4 4 



4 



6 



1 







4 



5 



5 3 5 3 



2 



8 



1 





(4 



7 



32321 



4 



(i 



1 







4 



7 



3 3 5 5 



4 



8 







334 



{4 



5 



4 3 43 



1 



5 



1 







U 



4 



3 44 4 



4 



7 







Hub. Sonora, Kansas, N. Texas. 



S. vmims. 



S. viridi-brunnea ; sogmento ccphalioo late ovato, sparse leviter punctato ; pedibus flavis ; antenms 23 articu- 

 latis, plerumque haud pubescentibus ; dentibus labialibus 8, duobus intimis utrinquo arete coadunatis, externo 

 acuto, sejuneto; laminis dentalibus elongatis ; pedibus prostrorais subcylindricis, modicc robustis; artieulo basah 

 tibiali longiore, supra subconvexo, margine baud elevate, intus 2—5 spinis, subtus 7—12 spinis in serie vol tn- 

 plici vel quadruplici dispositis, proeessu angulari 1—2 spinis; appendicibus analibus lateralibus profunda denseque 

 punctatis, interdum elongatis, singula spinis apicalibus 2 — 5, ct interdum altera marginale armata. 



Greenish-brown ; cephalic segment broadly ovato, sparsely lightly punctate; feet yellow ; antenna 23 articulate, 

 generally not pubescent; labial teeth 8, the inmost two on each side closely coadnate, the external acute, distant; 

 dental lamina elongate; last pair of feet subcylindrical, rather robust; basal joint longer than the tibial, above 

 convex, its margin not elevate, within 2—5 spines, below 7—12 spines arranged in a threefold or fourfold series, 

 angular process 1—2 spines; lateral anal appendages profoundly densely punctato, sometimes elongate, each 

 armed with 2 — 5 apical spines, and sometimes another marginal. 



* The typical number of rows is four. The variations from this are caused by some of the spines being a 

 fraction of a line from their normal position ; they generally may bo placed in four crooked rows, 

 f Are the hind legs with the anal appendages the original ones, or are they reproduced? 



