THE MYRIAPODA OF NORTH AMERICA. 77 



moderately large. Ventral plates with a distinct median sulcus ; pores 

 on posterior part. First pair of legs moderately short, anterior and 

 posterior subequal. Posterior coxa? strongly inflated, pores large and 

 small, about twelve. Anal legs of the female slender, claw large. 

 Pairs of legs of female 43. Length of female 37 min . 



Habitat. — -Little Bock. 



This species iz named in honor of Dr. J. C. Branner, State geologist 

 of Arkansas. 



The collection contains one speeimen of this species. It is related 

 to bothriopa, but is distinguished by a smaller number of legs and its 

 large posterior coxa and pores. 



22. Geophilus perforatus (McNeill). 



Schendila perforata, McNeill, Proc. U. S. Nut. Mas., 325, 1887, (Pensacola, Fla.) 

 Abundant throughout the State. 



23. Geophilus okolonae, 8p. nov. 



Frontal plate absent ; anal pores absent. Fulvous, head and antennae 

 darkest. Bather slender, very slightly attenuated anteriorly and pos- 

 teriorly, smooth, very sparsely pilose and punctate. Prehensorial feet 

 smooth, punctate, sternum wider thau long (4:3.5); coxa of about equal 

 length and width, unarmed; claw moderately curved; teeth almost obso- 

 lete. Cephalic plate slightly longer than wide, suboval, posterior margin 

 truncate, sparsely punctate and pilose ; prebasal plate exposed ; basal 

 plate much wider than long (5:2). Antenna? short, penult and ante- 

 mult joints not noticeably shortened. Dorsal plates distinctly bisul- 

 cate. Anterior spiracle rather large, oval, oblique, median and pos- 

 terior smaller. Ventral plate with an indistinct median sulcus ; pores 

 not manifest. First pair of legs short, anterior and posterior subequal. 

 Posterior coxa scarcely inflated, pores absent; last ventral plate wide, 

 side moderately converging, not densely pilose. Anal legs produced, 

 armed, rather densely pilose beneath, crassate. Pairs of legs of male 

 61 ; of female 63. Length of body 40""". 

 Ha b itat. — Okolona. 



There are two adults of this species in the collection. It is separated 

 from other North American species by having no coxal pores and the 

 prebasal plate exposed. 



24. Geophilus salemensis Bollman. 



I have seen one specimen that was collected near Little Bock by Mr. 

 Hutcherson. 



25. Cryptops hyalinus Say. 



Cryptops hyalina Say, Journ. Phila. Acad. Nat. Sci., m, 1820 (E. Florida); Say, 

 Oeuvres Ent., sp. 3, 1822; Newport, Trans. Linn. Soc. 409, 1S44 ; Newport, 

 Cat. Myr. Brit, Mus. Chil. 60, 1856; Wood, Trans. Auier. Philos. Soc. 168, 

 1865; Underwood. Ent, Aruer., 65, 1887. 



Cryptops hyalinus Koch, Syst. d. Myr., 175, 1847; Gervais, Apteres, iv, 293, 

 1847. 



