. Bonner zoologische Monographien. Zoology. PANESAR, EVOLUTION IN WATER jMITES Genus: MamersopsidesYitts, 1916 [2 spp.] Genon^e: Mamersopsides sigthoriYicis, 1916. Location of genou'pe: lost (not found in SMF). No material examined for this study. Definition (adults) Characters of the Anisitsiellinae as defined above and: • C4 with sharply pointed posterior end. Medially from this posterior tip, C4 closely impends at least the anterior half of GF and laterally from this point the edge leads straight towards the more anteriorly placed insertions of IV-L. A suture leads from in- sertion of IV-L
. Bonner zoologische Monographien. Zoology. PANESAR, EVOLUTION IN WATER jMITES Genus: MamersopsidesYitts, 1916 [2 spp.] Genon^e: Mamersopsides sigthoriYicis, 1916. Location of genou'pe: lost (not found in SMF). No material examined for this study. Definition (adults) Characters of the Anisitsiellinae as defined above and: • C4 with sharply pointed posterior end. Medially from this posterior tip, C4 closely impends at least the anterior half of GF and laterally from this point the edge leads straight towards the more anteriorly placed insertions of IV-L. A suture leads from in- sertion of IV-L to the insertions of III-L. • DS complete, oval and with a well-developed ridge on each side near the lateral margins. • Dorsal furrow with 5-7 pairs of medium-sized and +/- rectangular platelets. Sometimes two glands in the dorsal furrow are fused to a common platelet. Species included Mamersopsides sigthori Viets, 1916, was reported with a single male only from a stream near the street Bo- napupa-Lungasi in Cameroon (Africa). Mamersopsides vietsi Cook, 1966 was the second species discovered, with male and female, in a stream one mile north of Suehn (Liberia, Africa). Inventory (adults) DS/VS. For DS see definition. VS complete, including excretory pore. Two pairs of glands lateral to the excre- tory pore are presents in the VS in the male M. sigthori and in the female M. vietsi, but in the dorsal furrow the male of the latter species. Eye-region. Eye-lenses appear to be located in the ante- rolateral corners of the nasale, according to figures in Cook (1966), but no information is given in the text. Coxae. Coxal organization: posterior borders of C2 convex; medial sutures of Cl/Cl, C3/C3 and C4/ C4 forming a straight line between GF and gnatho- soma, with medial suture of Cl/Cl present or in- complete due to fusion. Cg4. Cg4 situated posterior to suture C2/C3 in semi- lateral position. GF. Anterior end of GF level with or posterior to insertions of IV-L. Ac. Acetabula e
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