. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. SOUTH AFRICAN PARASITIC COPEPODA 87. Fig. 11. Lepeophtheirus longispinosus Wilson. a. sternal furca; b. oral cone and 1st maxilla. Lepeophtheirus natalensis n. sp. (Figs 12, i$a-k) Description $. Carapace more than half total length, slightly longer than wide, cephalic region longer than thoracic area, with narrow membranous fringe. Eyes situated at posterior end of cephalic region. Posterior sinuses moderately wide. Free thoracic segment about \ length of genital segment. Latter roughly rectangular,


. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. SOUTH AFRICAN PARASITIC COPEPODA 87. Fig. 11. Lepeophtheirus longispinosus Wilson. a. sternal furca; b. oral cone and 1st maxilla. Lepeophtheirus natalensis n. sp. (Figs 12, i$a-k) Description $. Carapace more than half total length, slightly longer than wide, cephalic region longer than thoracic area, with narrow membranous fringe. Eyes situated at posterior end of cephalic region. Posterior sinuses moderately wide. Free thoracic segment about \ length of genital segment. Latter roughly rectangular, with rounded posterior lobes. Abdomen unsegmented, -J length of genital segment, longer than broad, with narrow posterior slit. 1st antenna with basal segment slightly longer than terminal segment, former bearing about 19 plumose setae, latter with 12 simple setae distally. 2nd antenna 3-segmented, middle segment bearing striated rounded process, terminal segment bearing simple seta, and tapering hook-like process. Postantennal process a simple stout hook. 1st maxilla flanking oral cone, consisting of simple stout posteriorly-directed hook. 2nd maxilla 3-segmented, 2 distal segments slender, 2nd bearing 2 fringed spines, terminal segment bearing single elongate fringed spine. Maxilliped 2-segmented, basal segment stout, 5 times longer than terminal segment, bearing strongly-curved apical process. Branches of sternal furca slender, divergent, apically rounded. 1st thoracic leg biramous, endopod reduced to tiny process on protopodite. Latter shorter than 1st segment of exopod, with. 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