Popis
Autor: Jan Delsing
Text ID: 93411
Text Type: 1
Page: 0
Založeno: 12.05.2019 23:01:23 - Uživatel Delsing Jan
Language: EN
Odkazová funkce: [[t:492801,textblock=93411,elang=EN;Popis]]
Shell forming a slender cone with flat sides. Colour rose-brown to yellowish brown. Embryonic whorls planorbid, of type B. Teleoconch consisting of three to four flat whorls, angled at the periphery. Suture clear, but not deeply incised. Growthlines clearly prosocline; without additional sculpture. Outer lip almost straight adapically, abruptly curved at the periphery and gently rounded basally. The columellar part of the inner lip is straight. Umbilicus lacking. Tooth clearly developed at the adapical side of the columella.
Dimensions: H. 1.8-2.5 mm, W. 0.9-1.4 mm; holotype 1.8 x 0.9 mm.
Aartsen, J.J. , Gittenberger, E. & Goud, J., 1998. Pyramidellidae (Mollusca, Gastropoda, Heterobranchia) collected during the Dutch CANCAP and MAURITANIA expeditions in the south-eastern part of the North Atlantic Ocean (part 1)
Možné záměny
Autor: Jan Delsing
Text ID: 93412
Text Type: 19
Page: 0
Založeno: 12.05.2019 23:02:06 - Uživatel Delsing Jan
Language: EN
Odkazová funkce: [[t:492801,textblock=93412,elang=EN;Možné záměny]]
With its prosocline growthlines, the flat and peripherally angled whorls, and a straight columellar border of the aperture, the present species is similar to Odostomia unidentata (Montagu, 1803). However, the latter species has a helicoid protoconch of type A-II, indicative of a different embryonic development.
Aartsen, J.J. , Gittenberger, E. & Goud, J., 1998. Pyramidellidae (Mollusca, Gastropoda, Heterobranchia) collected during the Dutch CANCAP and MAURITANIA expeditions in the south-eastern part of the North Atlantic Ocean (part 1)