 | United States National Museum - Science - 1915 - 488 pages
...specimens from Port Alfred (Coll. No. 595). Cat. No. 227740, USNM, three specimens from the same locality (Coll. No. 835). In addition to these, I have seen...about as strong as the last. On the penultimate whorl 1 2, equal and equally spaced, spiral cords appear between the summit and the posterior termination... | |
 | William Healey Dall, Paul Bartsch - Pyramidellidae - 1909 - 486 pages
...Sutures channeled; periphery and base of the last whorl well rounded, the latter marked by six equal spiral cords, which are about as wide as the spaces that separate them. The impressed grooves are crossed by numerous slender axial threads. Aperture ovate; posterior angle... | |
 | United States National Museum - Science - 1909 - 942 pages
...Sutures channeled; periphery and base of the last whorl well rounded, the latter marked by six equal spiral cords, which are about as wide as the spaces that separate them. The impressed grooves are crossed by numerous slender axial threads. Aperture ovate; posterior angle... | |
 | United States National Museum - Anthropology - 1911 - 848 pages
...and twenty-four upon the remaining whorls. In addition to these ribs, the whorls are marked by seven spiral cords, which are about as wide as the spaces that separate them and render the axial ribs nodulose. The cord at the summit is a little wider than the rest, likewise... | |
 | United States National Museum - Science - 1915 - 696 pages
...these, I have seen 40 specimens in Colonel Turton's collection (Coll. No. 1586). ALVANIA AXFREDENSIS, new species. Plate 21, fig. 8. Shell elongate-conic,...last. On the penultimate whorl 12, equal and equally spaced,spiral cords appear between the summit and the posterior termination of the outer lip, and six... | |
 | William Healey Dall - Science - 1915 - 734 pages
...ALFREDENSIS, new species. Plate 21, fig. 8. Shell elongate-conic, white. The nucleus consists of a single tura which appears to be smooth. The succeeding turn is...being marked by a stronger spiral cord, while the spwe j anterior to it beat's three about as strong as the last. On the penultimate whorl 12, equal... | |
 | United States National Museum - Anthropology - 1917 - 822 pages
...at the summit to the suture. The spiral sculpture consists of four equally strong and equally spaced cords, which are about as wide as the spaces that separate them. On the last two turns a slender intercalated spiral thread appears between the second and third and the third... | |
 | Ida Shepard Oldroyd - Mollusks - 1927 - 406 pages
...(Nuclear whorls decollated.) Post-nuclear whorls appressed at the summit, ornamented with three nodulose, spiral cords which are about as wide as the spaces that separate them. The first of these is at the summit, the third is on the anterior fourth between the sutures, while... | |
 | United States National Museum - Anthropology - 1912 - 872 pages
...narrowly umbilicated, very slightly attenuated anteriorly, marked by eight equal and equally spaced spiral cords which are about as wide as the spaces that separate them. Aperture broadly oval; posterior angle obtuse; outer lip thick, reenforced immediately behind the edge... | |
 | Science - 1909 - 352 pages
...Sutures channeled; periphery and base of the last whorl well rounded, the latter marked by six equal spiral cords, which are about as wide as the spaces that separate them. The impressed grooves are crossed by numerous slender axial threads. Aperture ovate; posterior angle... | |
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ALFREDENSIS. new species. Plate 21, fig. 8. Shell elongate-conic, white. The nucleus consists of a single turn which appears to be smooth. The succeeding turn is well rounded, the next, strongly shouldered on the middle, while the last is slightly concave... 