. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. SOUTHERN AFRICAN CUMACEA: PART 3 185 about a third of total length from distal tip. Pereiopod 2 without exopod. Telson slightly rounder and broader. Rami similar but distal tips missing. Adult male, length 4,5 mm (SM 129). At first glance the two individuals from SM 129 and the ovigerous female from SM 151 look very different from the rest. However, these differences appear to be confined to the sculpturing of the carapace, and the appendages (except for the distal segments of pereiopod 1) are identi
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. SOUTHERN AFRICAN CUMACEA: PART 3 185 about a third of total length from distal tip. Pereiopod 2 without exopod. Telson slightly rounder and broader. Rami similar but distal tips missing. Adult male, length 4,5 mm (SM 129). At first glance the two individuals from SM 129 and the ovigerous female from SM 151 look very different from the rest. However, these differences appear to be confined to the sculpturing of the carapace, and the appendages (except for the distal segments of pereiopod 1) are identical in all important respects. The sizes of the individuals also vary quite considerably. But it does not seem possible to pinpoint any really signifi- cant differences which would allow specific differentiation and it would there- fore seem that we are dealing with a single polymorphic species. The adult male from SM 129 (Fig. 16A) differs from that figured in Fig. 15A as follows: the five posterior pairs of protuberances on the carapace are drawn out to form distinct points and the anterior pairs are either very much reduced or absent. The tips of these points are very delicate, almost transparent and very easily broken off, so that the apparent degree of development of these may not be of great significance. The expansions of the second and third pedi- gerous somites and the first four abdominal somites are very much better developed: these too are easily damaged and one is broken off. In dorsal view (Fig. 16B) the second lateral pair of protuberances from the anterior end is. Fig. 16. Ceratocuma horridum australe subsp. nov. (SM 129) Adult male. A. Lateral view. B. Dorsal view of carapace. C. Pereiopod 1. D. Distal tip of Scale line pereiopod 1. 2 mm for B; 1 mm for A, C; 0,5 mm for Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectl
Size: 1901px × 1314px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
