Cerithiopsis fayalensis Watson, 1880 |
Azores to Mediterranean. Predator on sponges in the infralittoral. « Shell. - Small, narrow, conical, not contracted on the base, reticulated, tubercled, with a marked sutural furrow, of a light ruddy brown. Sculpture. Longitudinals - there are on the last whorl from 15 to 25 small, straight, longitudinal ridges, parted by narrow deepish furrows; they cross the whorls a little obliquely, and run pretty straight down the spire from whorl to whorl, with a slight sinistral twist. […] The bottom of each whorl is very slightly constricted into the sutural furrow, which is thus a little more distinct than the other furrows; and from this the succeeding whorl projects with a very straight and perpendicular edge. This furrow encircles the edge of the base, which is sharply defined and contracted by a spiral thread, whose rounded edge projects a little prominently on the inner side of the furrow. On the base the microscopic markings, irregular hair-like lines of growth, and very faint spirals are most visible. Colour uniform light ruddy brown. Spire high, narrow, pointed, very slightly scalar, with very slightly convex contour lines. » – R. B. Watson: “ Mollusca of H.M.S. ‘Challenger’ Expedition”, Journal of the Linnean Society of London vol.15, London 1880, p.125-126. 35m deep, Circeo, Latina, Lazio, W. Italy. 4,9mm. Original pictures provided by A. Nappo (IT). – (CC BY-NC-SA) – |
« Whorls […] very slightly convex on the side; the base is very flat and hardly conical. Suture only recognizable from the furrow in which it lies. Mouth very small, narrowly oval, with a small, but well marked sinus at its upper outer corner, and with a largish and deepish canal turning in benind the pillar. Outer lip not expanded above, and but little so on the base; strongly furrowed by the spirals of the sculpture. Pillar short, stoutish, well rounded, fine-edged, obliquely truncate, and sharp-pointed. […] From C. tubercularis, Mont., which it resembles in sculpture, it differs not only in its slender form, but in the absence of the circumcolumnar thread on the base. » – Ibid. 80-100m deep, Porto Cesareo, Lecce, Puglia, S. Italy. 4,4mm. Original pictures provided by F. Vitale (IT). – (CC BY-NC-SA) – |
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