. Annals of the South African Museum. Annale van die Suid-Afrikaanse Museum. 136 ANNALS OF THE SOUTH AFRICAN MUSEUM Spinarcturus natalensis sp. no v. Figs 7-8 Description Male. Body elongate, geniculate, with numerous short fine setules entrapping debris. Head with concave anterior margin, not fused with pereionite I. Latter bearing pair of slender spines. Pereionites II to IV with two pairs of dorsolateral spines. Pleon consisting of three fused segments, first pleonite unarmed, second pleonite with one pair dorsolateral spines, third pleonite with pair strong proximolateral spinose processes
. Annals of the South African Museum. Annale van die Suid-Afrikaanse Museum. 136 ANNALS OF THE SOUTH AFRICAN MUSEUM Spinarcturus natalensis sp. no v. Figs 7-8 Description Male. Body elongate, geniculate, with numerous short fine setules entrapping debris. Head with concave anterior margin, not fused with pereionite I. Latter bearing pair of slender spines. Pereionites II to IV with two pairs of dorsolateral spines. Pleon consisting of three fused segments, first pleonite unarmed, second pleonite with one pair dorsolateral spines, third pleonite with pair strong proximolateral spinose processes, rest of segment smooth, convex, terminally bluntly rounded. Coxae not dorsally visible. Eyes dorsolateral. Antennule 4-segmented, terminal article elongate, bearing aesthetascs. Antenna shorter than body, peduncle consisting of two short proximal segments and two more elongate distal segments, plus flagellum of three articles, slender terminal spine present; all segments with scattered setae. Mandible with tridentate incisor, tridentate lacinia, four setae in row, broad truncate molar process with four stout spines on ventral margin. Maxilla 1 with three fringed setae on inner ramus, several simple spines on outer ramus. Maxilla 2 with both lobes of outer ramus tipped with two sparsely fringed. 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 [etc. ] The Museu
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Keywords: ., bookauthorsouthafr, bookcentury1800, bookdecade1890, bookyear1898
