—5— 



feet smooth, sparsely pilose ; sternum subcordiform, wider than long (5:3); cox?e 

 wider than long, unarmed ; tooth strong, acute ; claw large, curved. Cephalic plate 

 subquadrangular, sides rounded, slightly diverging posteriorly ; basal plate about 

 half as long as cephalic, twice as wide as long, anterior margin scarcely covered by 

 cephalic plate. Antennae long, joints moderate, penult and antepenult longer 

 than wide. Dorsal plates moderately smooth ; anterior and posterior prercuta 

 moderate, median larger. Spiracles round, moderately large. Ventral plates with 

 a distinct median sulcus ; pores on posterior part. First pair of legs moderately 

 short, anterior and posterior subequal. Posterior coxae 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 mm. 

 Hab. — Little Rock. 



This species is named in honor of Dr. j. C. Branner, State Geo- 

 logist of Arkansas. 



The collection contains one specimen 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 (McNiell). 



Scheiidila per/oraius, McNiell, Proc. U. S. Nat. ]\Ius., 325, 1887 

 (Pensacola, Fla. ). 



Abundant throughout the State. 



23. Geophilus okolonae sp. nov. 



Frontal plate absent ; anal pores absent. Fulvous, head and antennfe darkest^ 

 Rather slender, very slightly attenuated anteriorly and posteriorly, smooth, very 

 sparsely pilose and punctate. Prehensorial feet smooth, punctate, sternum wider 

 than long (4:3.5); coxa of about equal length and width, unarmed ; claw moderately 

 curved ; teeth almost obsolete. Cephalic plate slightly longer than wide, suboval, 

 posterior margin truncate, sparsely punctate and pilose ; prebasal plate expose:! ; 

 basal plate much wider than long (5:2). Antennae short, penult and antepenult 

 joints not noticeably shortened. Dorsal plates distinctly bisulcate. Anterior spiracle 

 rather large, oval, oblique, median and posterior 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 mm. 



Hab. — 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 pre- 

 basal plate exposed. 



24. Geophilus salemensis Bollman. 



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

 Hutcherson. 



25. Cryptops hyalinus Say. 



Cryptops hyalina Say, Journ. Phila. Acad. Nat. Sci., Ill, 1820 



