Cyclopyxis

Cyclopyxis Deflandre, 1929 (ref. ID; 3686)

Testacealobosia: Rhizopoda (ref. ID; 2848, 2851)
Centropyxidae Deflandre (ref. ID; 7501)

[ref. ID; 3686]
Shell brown; circular or hemispherical; composed of agglutinated mineral particles; aperture central, invaginated, circular. (ref. ID; 3686)

  1. Cyclopyxis aculeata (ref. ID; 4718)
  2. Cyclopyxis algaephila Decloitre, 1983 (ref. ID; 2533 original paper) or Decloitre, 1986 (ref. ID; 4718 original paper)
  3. Cyclopyxis ambigua Bonnet & Thomas, 1960 (ref. ID; 2054, 2238, 2466 original paper, 2538, 2539, 2541, 2862) reported year? (ref. ID; 3383)
  4. Cyclopyxis ambigua var. aplanata Decloitre (ref. ID; 3383)
  5. Cyclopyxis amplecta Schonborn, 1966 (ref. ID; 2066 original paper) reported year? (ref. ID; 3383)
  6. Cyclopyxis aplanata (Penard) Deflandre, 1929 (ref. ID; 2421, 2522)
  7. Cyclopyxis aplanata var. microstoma Schonborn, 1966 (ref. ID; 2066 original paper) reported year? (ref. ID; 3383)
  8. Cyclopyxis arboricola Chardez, 1976 (ref. ID; 2146 original paper) or 1974 (ref. ID; 4673)
  9. Cyclopyxis arcelloides (Penard, 1902) (ref. ID; 3686) reported year? (ref. ID; 5034), (Penard) Deflandre, 1929 (ref. ID; 2160, 2441) or Penard? sensu Wailes, 1919 (ref. ID; 4664)
  10. Cyclopyxis arcelloides var. gibbosa Van Oye, 1949 (ref. ID; 3223 original paper)
  11. Cyclopyxis arcelloides var. minima Van Oye (ref. ID; 2235, 2329 original paper)
    See; Cyclopyxis deflandrei (ref. ID; 2235)
  12. Cyclopyxis armata Van Oye (ref. ID; 2564 original paper)
  13. Cyclopyxis bacillifera Chardez, 1965 (ref. ID; 2259 original paper)
  14. Cyclopyxis bathystoma Chibisova, 1967 (ref. ID; 2034, 4673) reported year? (ref. ID; 3710)
    See; Cyclopyxis intermedia (ref. ID; 2034)
  15. Cyclopyxis crucistomas Bartos (ref. ID; 2160)
  16. Cyclopyxis deflandre Van Oye (ref. ID; 2235)
    Syn; Cyclopyxis arcelloides var. minima Van Oye (ref. ID; 2235)
  17. Cyclopyxis deflandrei Van Oye (ref. ID; 2564 original paper)
  18. Cyclopyxis dulcis Couteaux & Munsch, 1978 (ref. ID; 2034, 4673) reported year? (ref. ID; 3710)
  19. Cyclopyxis eurystoma Deflandre, 1929 (ref. ID; 2110, 2147, 2160, 2236, 2329, 2441, 2532, 2538, 2852, 3686, 5461) reported year? (ref. ID; 4737, 5034), (Deflandre, 1929) Deflandre, 1929 (ref. ID; 4755) or (Deflandre) Van Oye (ref. ID; 3223)
  20. Cyclopyxis eurystoma var. gauthieriana Bonnet & Thomas, 1960 (ref. ID; 2466) reported year? (ref. ID; 3383)
  21. Cyclopyxis eurystoma var. parvula Bonnet & Thomas, 1960 (ref. ID; 2087, 2155, 2160, 2420, 2466 original paper, 3279) reported year? (ref. ID; 3383)
  22. Cyclopyxis eurystoma var. sinuosa Decloitre (ref. ID; 2584 original paper)
  23. Cyclopyxis eurystoma var. stenostoma Decloitre, 1949 (ref. ID; 2066) or Decloitre, 1953/1956 (ref. ID; 2034) reported year? (ref. ID; 2532)
  24. Cyclopyxis gigantea Bartos, 1963 (ref. ID; 2090)
    See; Cyclopyxis intermedia (ref. ID; 2034)
  25. Cyclopyxis grospietschi Schonborn, 1962 (ref. ID; 2051 original paper)
  26. Cyclopyxis humilis Bonnet (ref. ID; 2160, 2549 original paper, 3383)
  27. Cyclopyxis inpressa (ref. ID; 2087)
  28. Cyclopyxis insolitus Decloitre, 1969 (ref. ID; 2034)
  29. Cyclopyxis intermedia Kufferath, 1932 (ref. ID; 2034)
    Syn; Cyclopyxis bathystoma Chibisova, 1967 (ref. ID; 2034); Cyclopyxis gigantea Bartos, 1963 (ref. ID; 2034); Cyclopyxis kahli var. grandis Chibisova, 1967 (ref. ID; 2034); Cyclopyxis lithostoma Bonnet, 1974 (ref. ID; 2034)
  30. Cyclopyxis kahli Deflandre, 1912 (ref. ID; 661, 2089, 2110) or 1929 (ref. ID; 2034, 2441, 2848, 2851, 3279, 3619, 3686, 4737, 5461) reported year? (ref. ID; 2235, 2852)
  31. Cyclopyxis kahli var. cyclotosma Bonnet & Thomas, 1960 (ref. ID; 2034, 2090, 2466 original paper) reported year? (ref. ID; 3383)
  32. Cyclopyxis kahli var. grandis Chibisova, 1967 (ref. ID; 2034, 4673) reported year? (ref. ID; 3710)
    See; Cyclopyxis intermedia (ref. ID; 2034)
  33. Cyclopyxis kahli var. obliqua Decloitre, 1969 (ref. ID; 2034)
  34. Cyclopyxis leclercqi Beyens, Chardez & De Bock, 1986 (ref. ID; 2122 original paper)
  35. Cyclopyxis lithostoma Bonnet, 1974 (ref. ID; 2090, 2160, 2471 original paper, 4673)
    See; Cyclopyxis intermedia
  36. Cyclopyxis machadoi Bonnet, 1965 (ref. ID; 2087, 2146, 2219 original paper, 2485) reported year? (ref. ID; 3539)
  37. Cyclopyxis marinus Decloitre, 1977 (ref. ID; 2520 original paper, 4673)
  38. Cyclopyxis microstoma Decloitre (ref. ID; 2525 original paper, 2532, 3710)
  39. Cyclopyxis minuscula Decloitre (ref. ID; 2524 original paper, 2532, 3710)
  40. Cyclopyxis mutabilis Decloitre (ref. ID; 2532, 3710)
  41. Cyclopyxis penardi Deflandre (ref. ID; 2147, 2152)
  42. Cyclopyxis penardi Deflandre var. minor Chibisova, 1967 (ref. ID; 4673) reported year? (ref. ID; 3710)
  43. Cyclopyxis pirini Golemansky, 1974 (ref. ID; 2034, 2152, 2428 original paper, 2436) reported year? (ref. ID; 7505)
  44. Cyclopyxis plana var. microstoma Schonborn, 1966 (ref. ID; 2065 original paper)
  45. Cyclopyxis profundistoma Bartos, 1963 (ref. ID; 2034)
  46. Cyclopyxis pseudolaevigata Van Oye (ref. ID; 2564 original paper)
  47. Cyclopyxis puteus Thomas, 1960 (ref. ID; 4737) reported year? (ref. ID; 2087, 2090, 2402, 3383) reported author and year? (ref. ID; 2401, 3416)
  48. Cyclopyxis quadratus Decloitre (ref. ID; 2524 original paper, 3710)
  49. Cyclopyxis radiata Van Oye (ref. ID; 2235)
  50. Cyclopyxis radiusii Decloitre (ref. ID; 2524 original paper, 3710)
  51. Cyclopyxis stellata Wailes (ref. ID; 2090)
  52. Cyclopyxis stenostoma (Bunescu & Matic, 1982) Decloitre, 1986 (ref. ID; 4718 redescribed paper)
  53. Cyclopyxis stephanostoma Bonnet (ref. ID; 2160, 2482 original paper, 3710)
  54. Cyclopyxis triangularistoma Decloitre (ref. ID; 2526 original paper, 3710)
  55. Cyclopyxis trilobata var. maxima Chardez, 1971 (ref. ID; 2450 original paper)

Cyclopyxis dulcis Couteaux & Munsch, 1978 (ref. ID; 2034, 4673) reported year? (ref. ID; 3710)

Descriptions

Xenosomes small. (ref. ID; 2034)

Measurements

Shell diameter 108-117; shell depth 59-67; pseudostome diameter 12-30 um. (ref. ID; 2034)

Cyclopyxis eurystoma Deflandre, 1929 (ref. ID; 2110, 2147, 2160, 2236, 2329, 2441, 2532, 2538, 2852, 3686, 5461) reported year? (ref. ID; 4737, 5034), (Deflandre, 1929) Deflandre, 1929 (ref. ID; 4755) or (Deflandre) Van Oye (ref. ID; 3223)

Descriptions

The shell is yellow or brown, circular, and hemispherical in lateral view. The shell surface is rough except for the apertural collar. The aperture is circular, central and bordered by a smooth band of organic cement. (ref. ID; 3686)
Shell yellowish-brownish, hemispheric with a circular, slightly invaginated aperture (distinction between C. eurystoma and Phryganella acropodia!). As a rule, aperture in relation to the diameter of the shell greater than in P. acropodia. (ref. ID; 4755)

Measurements

Diameter of shell 69-80; depth of shell 46-55; diameter of aperture 34-46 um (n=6). (ref. ID; 3686)

Cyclopyxis eurystoma var. stenostoma Decloitre, 1949 (ref. ID; 2066) or Decloitre, 1953/1956 (ref. ID; 2034) reported year? (ref. ID; 2532)

Measurements

Shell diameter 64-70; shell depth 50; pseudostome diameter 10-12; pseudostome invagination 16-20 um. (ref. ID; 2034)

Cyclopyxis insolitus Decloitre, 1969 (ref. ID; 2034)

Descriptions

Pseudostome edge with small specialized xenostomes. (ref. ID; 2034)

Measurements

Shell diameter 70; shell depth 60; pseudostome diameter 25 um. (ref. ID; 2034)

Cyclopyxis intermedia Kufferath, 1932 (ref. ID; 2034)

Synonym

Cyclopyxis bathystoma Chibisova, 1967 (ref. ID; 2034); Cyclopyxis gigantea Bartos, 1963 (ref. ID; 2034); Cyclopyxis kahli var. grandis Chibisova, 1967 (ref. ID; 2034); Cyclopyxis lithostoma Bonnet, 1974 (ref. ID; 2034)

Descriptions

Shell circular in ventral and dorsal view, more than hemispherical (depth/diameter=0.72), lateral and dorsal sides evenly rounded, rarely slightly irregular by protruding xenosomes; dark-brown to black at low magnification due to large size, opaque; composed of small to medium-sized quartz particles very flat and covered by thin organic layer in ventral half of shell which is thus usually very smooth. Pseudostome in centre of ventral surface, distinctly and evenly invaginated, circular, edge irregular because formed by ordinary body xenosomes and never by specialized, knobby particles as in C. kahli; often partially or completely closed by irregular, membranoid structure, possibly detritus and chitinoid material. (ref. ID; 2034)

Measurements

Diameter 210-220 um. (ref. ID; 2034)

Cyclopyxis kahli Deflandre, 1912 (ref. ID; 661, 2089, 2110) or 1929 (ref. ID; 2034, 2441, 2848, 2851, 3279, 3619, 3686, 4737, 5461) reported year? (ref. ID; 2235, 2852)

Descriptions

Shell usually circular in ventral and dorsal view, very rarely slightly elliptical, more than hemispherical, lateral sides evenly rounded, in large size class sometimes almost parallel making shells barrel shaped, dorsal side usually slightly flattened and often very uneven by large, protruding assortment of mineral particles; greyish to dark-brown, opaque; composed of xenosomes more distinct and rough on dorsal surface than on smoother ventral half, which appears covered by thin, organic layer. Pseudostome in or near centre of ventral surface, distinctly and evenly invaginated, perfectly or roughly circular, with edge completely or partially covered by rather regularly arranged, roundish xenosomes ("dents") in about 60% and 10% of specimens from small and large size class, respectively; often plugged by detritus giving impression of very deep pseudostome invagination. (ref. ID; 2034)
The shell is brown, circular, and hemispherical in lateral view. The apertural surface is slightly invaginated and smooth, whereas the aboral surface is rough. The aperture is circular, central and surrounded by small rough particles. This species is similar to C. arcelloides (Penard, 1902) but differs from it in size and the diameter of the aperture. (ref. ID; 3686)

Measurements

Diameter of shell 77-105; depth of shell 43-61; diameter of aperture 24-36 um (n=7). (ref. ID; 3686)

Cyclopyxis kahli var. cyclotosma Bonnet & Thomas, 1960 (ref. ID; 2034, 2090, 2466 original paper) reported year? (ref. ID; 3383)

Descriptions

Pseudostome edge without specialized xenostomes. (ref. ID; 2034)

Measurements

Shell diameter 80-100; shell depth 50-60; pseudostome diameter 12-30 um. (ref. ID; 2034)

Cyclopyxis kahli var. obliqua Decloitre, 1969 (ref. ID; 2034)

Descriptions

Pseudostome obligue; possibly described from single, terratogenic specimen. (ref. ID; 2034)

Measurements

Shell diameter 75; shell depth 50; pseudostome diameter 25 um. (ref. ID; 2034)

Cyclopyxis leclercqi Beyens, Chardez & De Bock, 1986 (ref. ID; 2122 original paper)

Descriptions

The shell is circular in apertural view, dorso-ventrally compressed with a swollen rim. It is composed of small polymorphous mineral particles. The aperture is slightly invaginated, circular and central, with three of four internal extensions reaching the dorsal part of the shell. (ref. ID; 2122)

Measurements

Diameter of shell 116-118, diameter of aperture 55-58, depth of shell 33-38 um (n=5). (ref. ID; 2122)

Cyclopyxis pirini Golemansky, 1974 (ref. ID; 2034, 2152, 2428 original paper, 2436) reported year? (ref. ID; 7505)

Descriptions

The specimens are mostly covered with diatoms, and have a slightly invaginated aperture, surrounded by large irregular particles. (ref. ID; 7505)

Cyclopyxis profundistoma Bartos, 1963 (ref. ID; 2034)

Descriptions

Without specialized xenosomes around pseudostome. (ref. ID; 2034)

Measurements

Shell diameter 85; shell depth 40 um. (ref. ID; 2034)