| 词条 | Pilsbryspira leucocyma |
| 释义 |
| taxon= Pilsbryspira leucocyma | image = Pilsbryspira leucocyma 001.jpg | image_caption = Shell of Pilsbryspira leucocyma | authority= (Dall, 1884) | synonyms_ref = [1] | synonyms =
| display_parents=3 }}Pilsbryspira leucocyma, common name the white-knobbed turret, is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.[1] DescriptionThe length of the shell varies between 12 mm and 20 mm. Compared with Drillia albomaculata, (d'Orbigny, 1842) (now synonym of Pilsbryspira nodata (C. B. Adams, 1850) ), it is more slender, with the periphery-angle bearing a pair of close revolving ribs, more conspicuous than the rest of the spiral sculpture and tipped with white where crossing the jongitudinal ribs. In the typical Drillia albomaculata the coloring is similar, but a single broader rib revolves at the periphery. In some specimens, however, there is a more or less distinct impressed line on the middle of the rib, so approximating it to this variety. [2] DistributionP. leucocyma can be found in Atlantic waters, ranging from the eastern coast of Florida south to Brazil.[3]References1. ^1 {{WRMS species|420409|Pilsbryspira leucocyma (Dall, 1884)||5 April 2010}} 2. ^ [https://ia600307.us.archive.org/10/items/manualconch06tryorich/manualconch06tryorich.pdf G.W. Tryon (1884) Manual of Conchology, structural and systematic, with illustrations of the species, vol. VI; Philadelphia, Academy of Natural Sciences {{PD-notice}}] 3. ^Tunnell, John W., Jr., Felder, Darryl L., & Earle, Sylvia A., eds. Gulf of Mexico Origin, Waters, and Biota, Volume 1: Biodiversity. Texas A&M University Press, 2009. 669. External links
2 : Pilsbryspira|Gastropods described in 1884 |
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