| 词条 | Mitromorpha substriata |
| 释义 |
| taxon = Mitromorpha substriata | image = Mitromorpha substriata 001.jpg | image_caption = Original image of a shell of Mitromorpha substriata | authority = (Suter, 1899) | synonyms_ref = [1] | synonyms = Daphnella substriata Suter, 1899 | display_parents = 3 }}Mitromorpha substriata is a species of sea snail, a marine gastropod mollusk in the family Mitromorphidae.[1] DescriptionThe length of the shell attains 5.5 mm, its diameter 2.25 mm. (Original description) The small, thin and fragile shell has a mitriform shape. it is white with a violet apex, finely spirally striated. The sculpture consists of delicate equal and numerous fine spiral striae, extending over the whole shell except the protoconch. The spiral below the suture is a little stronger than the others; frequent inequidistant faint growth periods form the only axial sculpture. The colour of the shell is whitish, the protoconch light violet. The spire is elevated, conic, about 1½ times the height of the aperture. The protoconch consists of 1¾ whorls, smooth, globose, the nucleus flatly convex, slightly lateral. The shell contains 6 whorls, regularly increasing, moderately convex. The base of the shell is slightly contracted. The suture is not deep, margined by the spirals. The aperture is very little oblique, subrhomboidal, angled above, produced below into a very short broad recurved siphonal canal, its base lightly emarginate. The outer lip is regularly convex, somewhat thickened inside, minutely crenate. The columella is vertical, slightly arcuate, excavated on meeting the parietal wall, twisted below with a slightly raised edge. The inner lip is thin and narrow, smooth. The operculum is unknown. [2] DistributionThis marine species is endemic to New Zealand and occurs off Foyaux Strait, North Island. References1. ^1 {{WRMS species|434444|Mitromorpha substriata (Suter, 1899)||29 March 2010}} 2. ^ [https://www.biodiversitylibrary.org/item/16786#page/5/mode/1up Henry Suter (1913): Manual of the New Zealand Mollusca; Government of New Zealand, Wellington, N.Z.{{PD-notice}}]
External links
3 : Mitromorpha|Gastropods described in 1899|Gastropods of New Zealand |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。