. Fig. 23. S. robustiis. a, Mastigopus i; b, Mastigopus 2; c, telson; d, telson, stage i. Eye about one-sixth length of body, with small, nearly round, eyeball, and no anterior papilla. Labral spine absent. Mandible without palp. Legs with small vestiges of exopods. Pleopods very long; i and 2 without endopods; 3-5 with very small rudiments of endopods. Uropods nearly seven times as long as wide (67 : i), the large outer spine in middle of margin. In stage 2 (Fig. 23 b, c) the carapace has lost its dorsal and lateral spines, and the dorsal spines on abdominal somites 1-3, but the antennal flag
. Fig. 23. S. robustiis. a, Mastigopus i; b, Mastigopus 2; c, telson; d, telson, stage i. Eye about one-sixth length of body, with small, nearly round, eyeball, and no anterior papilla. Labral spine absent. Mandible without palp. Legs with small vestiges of exopods. Pleopods very long; i and 2 without endopods; 3-5 with very small rudiments of endopods. Uropods nearly seven times as long as wide (67 : i), the large outer spine in middle of margin. In stage 2 (Fig. 23 b, c) the carapace has lost its dorsal and lateral spines, and the dorsal spines on abdominal somites 1-3, but the antennal flagellum is still short. The development of the telson is shown in Fig. 24. The youngest stage figured by Hansen (7-6 mm.) is probably stage 2, since he does not mention the vestigial exopods on the legs; also the lateral spines on the abdomen
Size: 2621px × 1907px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti
