. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. Fig. 5. Microarcturus similis (Barnard). a. $, dorsal view; b. & dorsal view. Microarcturus laevis sp. nov. Figs 6a-l Description of$ Integument smooth. Body dorso-ventrally flattened, head and peraeonal segment I fused, but with lateral margins free. Body widest at peraeonal segments II and III; peraeonal segments V to VII and pleo-telson narrow, all of similar width. Pleon consisting of two free segments, with third segment indicated on pleo-telson. Head bearing two large dorso-lateral eyes sep


. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. Fig. 5. Microarcturus similis (Barnard). a. $, dorsal view; b. & dorsal view. Microarcturus laevis sp. nov. Figs 6a-l Description of$ Integument smooth. Body dorso-ventrally flattened, head and peraeonal segment I fused, but with lateral margins free. Body widest at peraeonal segments II and III; peraeonal segments V to VII and pleo-telson narrow, all of similar width. Pleon consisting of two free segments, with third segment indicated on pleo-telson. Head bearing two large dorso-lateral eyes separated by convex semicircular portion, antero-lateral corners slightly produced. Epistome produced into blunt tapering process, tip just visible in dorsal view. All epimeres distinct, those of peraeonal segments II and III evenly convex in dorsal view. Peraeonal segments all dorsally convex, segment III bearing two broadly convex submedian dorsal bulges. Rounded boss at base of pleo-telson. Antennule slightly less than one-third length of antenna, consisting of 3-segmented peduncle and one flagellar segment. Basal segment broad, bearing fine setae, flagellum equal in length to distal two peduncle segments. Antennal peduncle 4-segmented, 3rd segment longest, flagellum 2-segmented, tipped with single spine. Mandible with strongly chitinised quadridentate incisor process, lacinia mobilis tridentate with three penicils at its base, large broad molar process covered with fine 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 perfectly resemble the original South African Museum. Cape Town : The Museum


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky