Description A. Verduin: « The lower two or three whorls of the great majority of the shells are uniformly covered with punctate spiral striae, which also cover the base of the shell. In ribless shells this sculpture may be weak or absent. Such shells may be easily mistaken for R. parva forma interrupta (Adams,1798). »
In this form, the shell, more or less slender, is often adorned with suprasutural and subsutural flamules ("interrupted"). Generally weak and thin, almost obsolete in some specimens, the spiral striae become stronger near the suture and at the base. Anse Bernardi, Port-Vendres, Eastern Pyrenees, S. France. 2,75mm. Raymond Huet legit.
JPG file - 123.14 kB - 580 x 580 pixels
added on 2019-05-11443 viewsWoRMS taxaDigital photo, entire species Rissoa similis Scacchi, 1836
This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 4.0 License
Disclaimer: WoRMS does not exercise any editorial control over the information displayed here. However, if you come across any misidentifications, spelling mistakes or low quality pictures, your comments would be very much appreciated. You can reach us by emailing firstname.lastname@example.org, we will correct the information or remove the image from the website when necessary or in case of doubt.