. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. Text-fig. 19.—Apertural dentition of South African Afrodontidae, highly magnified. 1. A. bilamellaris M. & P., two processes, one on parietal -wall and one on base. 2. A. trilamellaris M. & P., three processes, one on paries, one on base, and one on labrum. 3. A. farquhari Bnp., six processes, two on paries, one on base, and three on labrum. 4. A. novemlamellaris Bnp., nine processes or more, two on paries, one on base, and from six to eight on outer wall. 5. A. inhluzaniensis Bnp., two proce
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. Text-fig. 19.—Apertural dentition of South African Afrodontidae, highly magnified. 1. A. bilamellaris M. & P., two processes, one on parietal -wall and one on base. 2. A. trilamellaris M. & P., three processes, one on paries, one on base, and one on labrum. 3. A. farquhari Bnp., six processes, two on paries, one on base, and three on labrum. 4. A. novemlamellaris Bnp., nine processes or more, two on paries, one on base, and from six to eight on outer wall. 5. A. inhluzaniensis Bnp., two processes, one on base and one on labrum. 6. A. unilamellar is Conn., one process on paries. 7. A. burnupi Conn., three processes, two on paries and an obscure tubercle on base. 8. A. acinaces Conn., four processes, two on paries and two, inrunning, on labrum. 9. A. introtuberculata Conn., two small deep-set tubercles within outer wall. 10. A. bimunita Conn., about twelve processes, formed in two vertical rows, one inset behind the other, of six minute denticles on parietal wall. of plical processes; in order, therefore, to portray these features as simply as possible I present rough diagrams showing their dis- position in each species: I deal with them hereunder in order according to the number of processes. A. Dentition apertural. Afrodonta unilamellaris Conn. (Text-fig. 19, 6.) 1933. Afrodonta unilamellaris Conn., Ann. Natal Mus., vii, p. 146, pi. vii, f. 2-4. Shell discoid, silky, corneous brown; spire nearly flat. Whorls 4, convex, first lj practically smooth, remainder sculptured all over with extremely close and fine transverse microscopic striae, which are crossed by equally close micro- spiral lines; suture impressed. Aperture lunate, dentition consisting of a single,. 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
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
