Harriman Alaska series . s deep. Postero-lateral angle of the third abdominal segment nearly a right angle, the posterior margin of the epimeral plate above the angle smooth and straight. Fourth abdominal segment but slightly concave dorsally. First joint of the first antennae very thick and somewhat produced dis- tally over the second joint; flagellum scarcely as long as the peduncle, and composed of six or seven joints, the first joint but little longer than the succeeding one; secondary flagellum short and rather stout, consisting of four joints, of which the first is nearly as long as the
Harriman Alaska series . s deep. Postero-lateral angle of the third abdominal segment nearly a right angle, the posterior margin of the epimeral plate above the angle smooth and straight. Fourth abdominal segment but slightly concave dorsally. First joint of the first antennae very thick and somewhat produced dis- tally over the second joint; flagellum scarcely as long as the peduncle, and composed of six or seven joints, the first joint but little longer than the succeeding one; secondary flagellum short and rather stout, consisting of four joints, of which the first is nearly as long as the three others. Second antenna? a little longer than the first pair; flagellum not so long as the peduncle. Molar tubercle of the mandibles situated about midway between the cutting edge and the insertion of the palp. Inner plate of the maxillipeds reaching nearly as far forward as the tip of the second joint of the palp, and armed distally with a few short teeth; outer plate reaching about to the middle of the third joint. FIG. 119. Tryphosa nugcix.
Size: 1873px × 1334px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthormerriamc, bookcentury1900, bookdecade1900, bookyear1904
