80 nULLKTLV It). UNITED STATES NATIONAL Ml:»*^'UM. 



35. Lithobius cedipes, sp. iiov . 



I*oateri(»r ii!ij;l('s of tlu' *.>, 11, l.'J dnisal plates pioUiicrd. Anal pair 

 of lt'<;s ariiu'd witli two claws, ('oxal pores few, in a siiijile series. 

 Penultimate [)aii' of lej;s armed witli two elaws. Posterior coxa^ un- 

 armed, lirowu, liea<l and antenme dark, lej^s aud ventral plates paler. 

 Robust, n(>t smooth, sparsely pilose; head smooth, of about e»pial 

 len<;th and breadth (.J.L*: .'{.<»i. Antenna' short, attenuate, L'4 to lli't 

 jointed { i , L*<», 9 , 24). Ocelli I) to 11, arranj^ed in -> or 4 series. Pro 

 sternal teeth 2 + 2 or 3 + .'>. Coxal pores .">, o. 4, li to 0, ."», 5, o round. 

 Spines of the tirst pair of iejis 1, 1, 1 ; penultimate pair 1, .'5, .'J, 2; anal 

 pair 1, .'», .{, 1. Posterior ]>air of lej;s short. Male: I'emur of the hist 

 pair of lej;s somewhat b«'nt inwardly ami swollen; tibia very stroiifjly 

 swollen, especially above, and having abuneh of hairs on the posterior 

 third; first tarsal Joint crassate. Penultimate ]»air of h'gs somewhat 

 swollen, i>iiiicipa!ly the tibia: first tarsal Joint produced into a short 

 lobe on tlie inner side. Female: Posterior pair of le<j;s scarcely swol- 

 len; claw of the genitalia entire; spines 2-2. Length of male 1.1.4"""; 

 of fennde 2v "". 



Jfnhitaf.—lAttW Itock. 



I have three specimens of this s[)ecies. This is the only Icnown 

 s]>ecies with both the ai:al and penultimate pairs of feet swollen or pro- 

 duced into lobes. 



36. Lithobius transniaiiuus Ktiih. 



Al)undant at Little liock, common ,\t other localities. 



37. Lithobius mordaz Kocli. 



Common from Little liock to L'ltima Thule. 



38. Lithobius vorax Moiii» it. 



Found at ;ill points wliere collections were made, but was more com- 

 mon at Jjittle liock. 



39. Lithobius multidentatus Nowpoit. 



In a vial of Mvriapods that were <'ollected near Little llix-k ])v Mr. 

 llutcherson, there is a single specinuMi of this species. 



40. Scutigera forceps (Raliiies(iue). 



()n(? adult was seen at Arkadelphia. and several y«>ung at Little 

 Kock. 



Indiana Univeusitv, March •>, /6's,S. 



