130 bulletin: museum of comparative zoology. 



Keels of second segment below the keels of contiguous somites. Keels 

 in general narrow, but little raised from surface, high on sides, in no 

 case with posterior angles at all produced. Pores on segments five, 

 seven, nine, ten, twelve, thirteen, and fifteen to nineteen; on dorsal 

 surface. Segments strongly constricted or furrowed between meta- 

 zonite and prozonite, the latter in front of the furrow nearly as ele- 

 vated as the metazonite. Metazonites each with a transverse sulcus 

 caudad of which divided by finer sulci into large areas while on each 

 side the tergite is divided into numerous small slightly raised sub- 

 tubercular areas. Anal scutum triangularly narrowed caudad. Anal 

 valves margined. 



Small nodular elevations above bases of legs. In the male the first 

 legs much reduced; the second ones larger but obviously much more 

 slender than those succeeding. Tarsi of legs very long. 



Gonopods with telopodite not segmented; each su!)cylindrical, 

 excavated about base above coxa, narrowing distally into a more 

 chitinous, short, flattened unbranched portion; proximally densely 

 clothed with numerous subbacilliform bodies or stout setae; in front 

 of gonopods in genotype two peculiar flattened, oval or spoon-shaped 

 bodies, each on a slender flexible stalk. Gonopods extending caudo- 

 ventrad. 



Genotype. — A. wheeleri, sp. nov. 



357. Antisoma wheeleri, sp. nov. 



Type.— M. C. Z. 4,658. New Zealand: Wellington (W. M. 

 Wheeler). 



Dusky brown above, somewhat paler along transverse sulcus and in a median, 

 stripe in front of it. On the prozonites a yellow longitudinal mark on each 

 side of the middle. Paler along back. Lower part of side with a broad but 

 more or less irregular and interrupted longitudinal yellow stripe. Legs ful- 

 vous. Antennae brown. 



Vertex of head crossed by a short fine sulcus; surface marked off into 

 numerous small areas by a network of impressed lines or sulci; these also 

 covering the face down to the labral region. Hairs very short above, becoming 

 longer below level of the antennae. 



Collum laterally strongly rounded; distinctly margined. 



Second tergite with a low tooth projecting at anterior corner of each keel. 

 Caudolateral corners of posterior segments oblique, the median part of tergite 

 extending farther caudad than the lateral region; posterior angles of none of 

 the keels at all produced. Of the large areas caudad of the transverse suture 

 "there are mostly six or seven on each plate. 



