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Maxwellinatica
Taxonomy
Maxwellinatica was named by Beu and Marshall (2011).
It was assigned to Naticidae by Beu and Marshall (2011).
It was assigned to Naticidae by Beu and Marshall (2011).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 2011 | Maxwellinatica Beu and Marshall pp. 20 - 21 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. †Maxwellinatica Beu and Marshall 2011
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†Maxwellinatica phillipi Beu and Marshall 2011
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. G. Beu and B. A. Marshall 2011 | A genus of Naticidae; protoconch low, almost planispiral; teleoconch poliniciform, slightly lower than wide, with weakly flattened area of outline below sutural ramp producing slight taper towards apex. Inner lip bearing huge, thick, wide, smoothly rounded parietal callus extending down to cover upper half of umbilical area, protruding anteriorly in front of remainder of shell in both dorsal and lateral views, left margin sharply defined (in conventional spire-up apertural view); narrowing to low, wide, flat, inner lip callus, a smooth zone margining apertural edge of lower umbilical area. Lower half of umbilical area revealed, a rather narrow but clearly defined, shallow, ridge-margined zone of fine, irregular axial ridgelets; central straight, narrow chink possibly either an umbilical remnant or an individual character. Exterior sculpture of many narrow, shallow, widely spaced spiral grooves, prominent and very similar to those of Eunaticina papilla (Gmelin, 1791) in zones on sutural ramp and outside circum-umbilical ridge, weaker between, scarcely discernible around central third of last whorl. |