CAMBALOID MILLIPEDS LOOMIS 43 



Head with triangular eyes composed of 12 to 26 ocelli in three to 

 five series. Antennae short and stout with joints 2 and 6 subequal. 

 Clypeus with four setiferous punctures. Mandibulary stipes in- 

 flated, not recessed for the reception of the antennae. Gnathochi- 

 larium with the mentum in two parts. 



First segment long, usually equaling or exceeding in length the 

 next two segments together; anterior angles very broadly rounded 

 and not produced forward ; lateral margin with a raised rim ; lateral 

 surface with one or more longitudinal striae. 



Segments 2 to 4 not narrowed to form a necklike constriction. 



Pores beginning on segment 6; each pore surrounded by a 

 flattened rim. 



Last segment as long as the two preceding segments together, the 

 apex broadly rounded and with two setae. 



Segment 6 of the males with the pleurae overlapping at the middle 

 and produced caudad, partially covering the opening for the gono- 

 pods. Anterior margin of segment 7 distinctly raised and thickened 

 around the opening for the gonopods. 



First pair of male legs reduced in size, 6-jointed, the apical joint 

 short, rounded-conic, and without a claw. 



Sixth and seventh male legs with a hollow conic process on the 

 interior face of the penultimate joint. 



KEY TO THE SPECIES OF NANNOLENE IN THE UNITED STATES 



1. Size large, 25 mm in length ; eyes composed of about 26 ocelli. 



burkei (Bollman) 

 Size not exceeding 20 mm : eyes composed of not more than 22 ocelli 2 



2. Body almost white except for a few segments at either end. 



minor, new species 

 Body darker, more uniformly pigmented 3 



3. Length to 20 mm ; number of segments to 51 ; first segment longer 



than next two together violacea, new species 



Size somewhat smaller, number of segments less; first segment 

 shorter than next two segments together uta (Chamberlin) 



NANNOLENE BURKEI (Bollman) 



lulvs iurkel Bollman, Amer. Nat., vol. 21, p. 82, 1887. 



Namiolene burkei Bollman, Ann. New York Acad. Sci., vol. 4, p. 40, 1887. 



This species was described from two mature female and two imma- 

 ture male specimens from Ukiah, Calif., and no subsequent localities 

 have been reported. Chamberlin does not state the source of the 

 material from which his drawings were made.* 



This species is distinguished from our others by the greater num- 

 ber of ocelli — 26 in five series; the larger size of the body — 25 mm 



* Proc. U. S. Nat. Mus., vol. 61, art. 10, pi. 1, figs. 4-10, 1922. 

 85370—38 3 



