. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. i74 ANNALS OF THE SOUTH AFRICAN MUSEUM Remarks. These specimens, with strong median keel and deeply indented sutures do not belong to any of the other species represented in the Pieter Faure collection. Turton's eucosmia (1932, p. 130, pi. 27, no. 944) is much smaller, with a peculiar aperture, and is probably not a turritellid (see Anabathron, p. 188). Turritella ferruginea Rve. Figs. 32 c, 33 a Turritella ferruginea Reeve, 1849, pi. 7, fig. 32. Tomlin, 1925, p. 309. Protoconch i-| whorls, slightly
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. i74 ANNALS OF THE SOUTH AFRICAN MUSEUM Remarks. These specimens, with strong median keel and deeply indented sutures do not belong to any of the other species represented in the Pieter Faure collection. Turton's eucosmia (1932, p. 130, pi. 27, no. 944) is much smaller, with a peculiar aperture, and is probably not a turritellid (see Anabathron, p. 188). Turritella ferruginea Rve. Figs. 32 c, 33 a Turritella ferruginea Reeve, 1849, pi. 7, fig. 32. Tomlin, 1925, p. 309. Protoconch i-| whorls, slightly bulbous, alt. 0-5, diam. o-6 mm., smooth. Postnatal whorls 19-20. Profile of whorls evenly convex. Growth-lines distinct, crossing the spiral lirae, which are thereby crimped or beaded, and forming with the lirae a fine cancellate Fig. 32. Radula teeth of: a, Planaxis sulcatus (Born). c, T. ferruginea Rve. b, Turritella sanguinea Rve. First and following whorls with 2 peripheral lirae; at about the 5th whorl an intermediary develops between these two, and at 6th whorl one between suture and upper lira; at 10th whorl there are 2-3 intermediaries above the upper peripheral lira, and one below the lower lira; additional intermediaries develop above and below, and between the peripheral lirae, on later whorls there may be up to c. 15 lirae of various strengths; from about 12th whorl the 2 peripheral lirae, though distinguishable, lose their initial predominence. Base with 7-10 thin (but variable) lirae, and a stronger one forming the margin. 111 (protoconch and 4 whorls missing) X 27 mm. Operculum smooth, each whorl with very oblique growth-lines, margins entire, not scarious. Cream or buff, with orange-brown axial streaks following the curve of the growth-lines; on later whorls streaks closer together, the stronger lirae may interrupt the streaks producing a somewhat maculate pattern. Operculum chestnut-brown. Snout and left side of foot around operculum speckled or li
Size: 2564px × 975px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky