Antiplanes catalinae, copyright Peter Egerton.

Belongs within: Conoidea.

Antiplanes is a genus of conoid gastropods found in moderate to deep waters of the North Pacific (Powell 1966).

See also: A whole new twist on things, or just shifting back and forth?

Characters (from Powell 1966): Shell dextral or sinistral, often rather large, up to 55 mm, with tall narrow spire of rounded whorls and relatively short, flexed, unnotched or weakly notched anterior canal. Protoconch small, smooth, paucispiral and globular with asymmetric inrolled tip. Adult sculpture of more or less well developed spiral striations, or weak sigmoid growth threads with obscure spireal on base; whole surface covered by thick periostracum. Sinus moderately deep, broadly open, extending from suture to below periphery, with apex of sinus immediately above greatest peripheral convexity. Operculum leaf-shaped or claw-shaped with terminal nucleus. Radula with vestigial central tooth, and pair of wishbone-shaped marginals with distal basal limb severed.

<==Antiplanes Dall 1902 [incl. Rectiplanes Bartsch 1944, Rectisulcus Habe 1958] BK11
    |--*A. voyi (Gabb 1866) P66 (see below for synonymy)
    |--A. abarbarea Dall 1919 O27
    |--A. agamedea Dall 1919 O27
    |--A. amphitrite Dall 1919 O27
    |    |--A. a. amphitrite O27
    |    `--A. a. beroe Dall 1919 O27
    |--A. antigone Dall 1919 O27
    |--A. beringi Aurivillius 1885 O27
    |--A. bulimoides Dall 1919 O27
    |--A. catalinae (Raymond 1904) [=Pleurotoma (A.) catalinae] O27
    |--A. contraria (Yokoyama 1928) [=Pleurotoma contraria] P66
    |--A. diaulax (Dall 1908) [=Turris diaulax] O27
    |--A. hyperia Dall 1919 O27
    |--A. inflatus (Otuka 1949) [=Surcula (Typhlomangelia) kazusensis inflatus, A. (Rectiplanes) inflatus] P66
    |--A. isaotakii (Habe 1958) [=Rectiplanes (Rectisulcus) isaotakii] P66
    |--A. kamchatica Dall 1919 P66
    |--A. kawamurai (Habe 1958) [=Rectiplanes kawamurai] P66
    |--A. kazusensis (Otuka 1949) [=Surcula (Typhlomangelia) kazusensis, A. (Rectiplanes) kazusensis] P66
    |--A. litus Dall 1919 O27
    |--A. macfarlandi Berry 1847 [=A. (Rectiplanes) macfarlandi] P66
    |--A. major Bartsch 1944 P66
    |--A. motojimai (Habe 1958) [=Rectiplanes (*Rectisulcus) motojimai] P66
    |--A. muirensis Clark & Arnold 1923 [=A. (Rectiplanes) muirensis] P66
    |--A. rotula Dall 1919 [=Pleurotoma smithi Arnold 1903 non Forbes 1840, A. smithi] O27
    |--A. sanctiioannis (Smith 1875) (see below for synonymy) P66
    |--A. santarosana (Dall 1902) [=Pleurotoma (Antiplanes) santarosana, A. (*Rectiplanes) santarosana] P66
    |--A. thalaea Dall 1902 P66 [=Pleurotoma (Antiplanes) thalaea O27, A. (Rectiplanes) thalaea P66]
    |--A. vinosa (Dall 1874) [=Pleurotoma vinosa] O27
    `--A. willeti Berry 1953 [=A. (Rectiplanes) willeti] P66

Antiplanes sanctiioannis (Smith 1875) [=Pleurotoma sanctiioannis, A. (Rectiplanes) sanctiioannis; incl. P. sadoensis Yokoyama 1926, Antiplanes yessoensis Dall 1925] P66

*Antiplanes voyi (Gabb 1866) P66 [=Pleurotoma voyi P66; incl. P. (Surcula) perversa Gabb 1865 non Philippi 1847 P66, Antiplanes perversa O27]

*Type species of generic name indicated


[BK11] Bouchet, P., Y. I. Kantor, A. Sysoev & N. Puillandre. 2011. A new operational classification of the Conoidea (Gastropoda). Journal of Molluscan Studies 77: 273–308.

[O27] Oldroyd, I. S. 1927. The Marine Shells of the West Coast of North America vol. II pt I. Stanford University Press: Stanford University (California).

[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.

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