CHAMBERLIN: IfYRIOPODA OF THE AUSTRALIAN REGION. 416 



604. Spirobolellus bolttarius Carl. 



Rev. Suisse z.x.l. , L912, 20, p. 168, pi. 6, fig. 27. 1 

 Luc ujn . ( lelebes. 1 



(*)().">. Spirobolellus drymophilus, sp. qov. 



Type, -M. C. Z. 4,sf>.'{. Paratypes — 4,864. New Zealand: 

 kaori Forest, near Swainson (W. M. Wheeler). 



Body black; along cadi side of dorsum between level of pores and mid- 



doreum a series of light ferruginous spots, one on each segment; each spot 

 obliquely Bubtriangular or broadly T-shaped, (he apex of triangle or middle 

 pieee of the T rising obliquely dorsocaudad, the spot sometimes including a 

 dark mark. Base of anal scutum with a transverse hand of ferruginous in- 

 terrupted or not in the middorsal region. Anal valves also ferruginous on 

 each side along anterior border. Antennae and legs ferruginous. 



Setigerous foveolae 2 + 2. Antennae very short, fifth and sixth joints 

 moderately clavately thickened. Eye subtrapeziform with base caudad, a 

 little convex; ocelli typically in four transverse series, e. g., 7, 6, 5, 3; a little 

 less than twice their diameter apart. Sulcus widely interrupted in frontal 

 region. 



Collum strongly narrowed down the sides; lower corners rounded with 

 short lateral rising caudodorsad. Second tergite extending but slightly 

 below level of callum, flattened beneath. 



No segmental sutures, these represented only by a broad furrow especially 

 evident down the sides. Striate beneath, the anterior ends of the striae 

 running obliquely across the free prozonal region; on the sides are oblique 

 striae on prozonite but no striae on metazonite; near level of pore on prozonite 

 numerous fine wavy transverse striolations on the anterior part of the free 

 region and posterior part of the covered region, the latter otherwise smooth 

 and unmarked. Dorsal region marked with weak, short, and chiefly longi- 

 tudinal impressed lines. 



Anal scutum caudally rounded, just covering the valves. Valves not 

 margined. 



In the male the third to sixth legs with slight ventral coxal processes, those 

 of third, fourth, and fifth low and subconic, those of the last two pairs distally 

 broader. Anterior legs of male not padded. Anterior median plate of gono- 

 pods large, subtriangular but distally truncate, the distal edge typically a 

 little indented at the middle, much broader and less elongate than in Zygo- 

 strophus; supported on its caudal surface by a narrower, distally acute and 

 very thick, almost subcylindrical chitinous plate or thickening suggesting a 

 fused second median plate; proximal arms broad, on each side extending 

 ectoproximad against the gonopod but not coiled about the latter, not fused 



