Nepotilla

Nepotilla amoena, copyright Anders Warén.

Belongs within: Raphitomidae.

Nepotilla is a primarily Australasian genus of conoids with a shell bearing sharply raised spiral keels and a deep, slit-like sutural sinus (Powell 1966).

Characters (from Powell 1966): Shell very small, 1.5–6 mm, fusiform-biconic, angulate at periphry, sculptured with sharply raised spiral keels, usually crossed by rather distant lamellate axials, producing a coarse reticulation. Protoconch paucispiral of 1.5 whorls, tip smooth, oblique, acuminate, followed by cylindrical spirally lirate whorl. Sutural sinus exceedingly deep, slit-like.

<==Nepotilla Hedley 1918BW80
    |--*N. bathentoma (Verco 1909) [=Daphnella bathentoma]BW80
    |--N. aculeata (May 1915) [=Taranis aculeata]P66
    |--N. amoena (Sars 1878) [=Raphitoma amoena, Teretia amoena]BW80
    |--N. bartrumi Laws 1939P66
    |--N. carinata Laseron 1954P66
    |--N. diaphana May 1919P66
    |--N. excavata (Gatliff 1906) [=Daphnella excavata]P66
    |--N. fenestrata (Verco 1909) [=Daphnella fenestrata]P66
    |--N. finlayi Powell 1937P66
    |--N. lamellosa (Sowerby 1896)P66 [=Clathurella lamellosaP66, Daphnella lamellosaH22]
    |--N. legrandiL54
    |--N. microscopica (May 1915)P66 [=Taranis microscopicaP66, Daphnella microscopicaH22]
    |--N. nitidula Powell 1940P66
    |--N. powelli Dell 1956P66
    |--N. ‘powelli’ Ludbrook 1958 non Dell 1956P66
    |--N. serrata Laseron 1954P66
    |--N. tasmanicaL54
    |--N. triseriata (Verco 1909) [=Daphnella triseriata]P66
    |--N. tropicalis Hedley 1922P66
    `--N. vera Powell 1940P66

*Type species of generic name indicated

References

[BW80] Bouchet, P., & A. Waren. 1980. Revision of the north-east Atlantic bathyal and abyssal Turridae (Mollusca, Gastropoda). Journal of Molluscan Studies Supplement 8: 1–119.

[H22] Hedley, C. 1922. A revision of the Australian Turridae. Records of the Australian Museum 13 (6): 213–359, pls 42–56.

]L54] Laseron, C. F. 1954. Revision of the New South Wales Turridae (Mollusca). Royal Zoological Society of New South Wales: Sydney.

[P66] Powell, A. W. B. 1966. The molluscan families Speightiidae and Turridae: an evaluation of the valid taxa, both Recent and fossil, with lists of characteristic species. Bulletin of the Auckland Institute and Museum 5: 1–184, pls 1–23.

Leave a comment

Your email address will not be published. Required fields are marked *