Annals of the South African MuseumAnnale van die Suid-Afrikaanse Museum . Fig. 12. Steinmanella herzogi (Goldfuss), x 1. Lateral, dorsal and anterior views of AM-2428in which the tubercles are diagonally elongate. Note the lack of tubercles to the anterior face. 24 ANNALS OF THE SOUTH AFRICAN MUSEUM 0,29-0,36). The straight dorsal and weakly curved anterior margins form anacute angle, with terminal umbones and weakly inturned, orthogyrous to slightlyopisthogyrous beaks. The ventral margin is very long, weakly convex, and thebroad respiratory margin subtruncate. The escutcheon is fairly narrow,
Annals of the South African MuseumAnnale van die Suid-Afrikaanse Museum . Fig. 12. Steinmanella herzogi (Goldfuss), x 1. Lateral, dorsal and anterior views of AM-2428in which the tubercles are diagonally elongate. Note the lack of tubercles to the anterior face. 24 ANNALS OF THE SOUTH AFRICAN MUSEUM 0,29-0,36). The straight dorsal and weakly curved anterior margins form anacute angle, with terminal umbones and weakly inturned, orthogyrous to slightlyopisthogyrous beaks. The ventral margin is very long, weakly convex, and thebroad respiratory margin subtruncate. The escutcheon is fairly narrow, and about two-thirds the length of theshell. It is ornamented by irregular oblique rows of elongate tubercles that varyin size and follow the growth striae. Posteriorly these tubercles are continuouswith the growth rugae of the area. There is a very narrow lunule, about 40 percent of the shell height. The ligament pit is moderately developed, lanceolate,and about 40 per cent of the length of the escutcheon. There are three rows oftubercles to the area, corresponding t
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Keywords: ., bookauthorsouthafr, bookcentury1800, bookdecade1890, bookyear1898
