Turbonilla nanseni Lygre & Kongsrud & Schander 2011, sp. n. ...
Turbonilla nanseni sp. n. Fig. 2 Etymology: This species is named in honour of the research vessel R/V Dr Fridtjof Nansen, used for the collection of all the material used in this study (http://www.imr. no/om_havforskningsinstituttet/fasiliteter/fartoy/dr._fridtjof_nansen/en). Diagnosis: Tall, high...
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| Format: | Text |
| Language: | unknown |
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Zenodo
2011
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| Online Access: | https://dx.doi.org/10.5281/zenodo.7921002 https://zenodo.org/record/7921002 |
| Summary: | Turbonilla nanseni sp. n. Fig. 2 Etymology: This species is named in honour of the research vessel R/V Dr Fridtjof Nansen, used for the collection of all the material used in this study (http://www.imr. no/om_havforskningsinstituttet/fasiliteter/fartoy/dr._fridtjof_nansen/en). Diagnosis: Tall, high spired with large protoconch, convex whorls, and strong axial ribs crossed by microstriae. Description: Shell tall, slender, conical towards subcylindrical, milky white and shiny with rounded apex. Protoconch of type A-II, diameter 380 μm, protruding nucleus. Teleoconch whorls slightly convex. Suture incised, not deep, slightly undulating, noticeably oblique. Axial ribs not very elevated, thin, straight or slightly curved, opisthocline; closely set, broader than interspaces; disappearing at periphery of ultimate whorl. Base smooth. Microsculpture of undulating spiral striae in interspaces and on ribs. Aperture subrectangular. Inner lip slightly folded. Columellar tooth absent. No umbilicus. Holotype: GABON:station ... : Published as part of Lygre, Frøydis, Kongsrud, Jon Anders & Schander, Christoffer, 2011, Four new species of Turbonilla (Gastropoda, Pyramidellimorpha, Turbonillidae) from the Gulf of Guinea, West Africa, pp. 243 in African Invertebrates 52 (2) on page 247, DOI: 10.5733/afin.052.0202, http://zenodo.org/record/7917236 ... |
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