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Eucecryphalus gegenbaueri Haeckel, 1860

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Eucecryphalus gegenbauri, Haeckel 1887, p. 1222
Eucecryphalus gegenbauri, Haeckel, 1862, Monogr. d. Radiol., p. 308, Taf. v. figs. 12-15.
Eucecryphalus gegenbauri, R. Hertwig, 1879, Organism. d. Radiol., p. 76, Taf. viii. figs. 5, 5a, 5b.

Shell flatly conical, campanulate, with slight collar stricture. Length of the two joints = 1: 4, breadth = 1: 8. Cephalis hemispherical, with a conical horn of the same length, and very small pores. Thorax about twice as broad as high, with large, subregular, hexagonal meshes, increasing in size downwards. In the upper half of the thorax the meshes are filled up by an extremely delicate arachnoidal network. From the collar stricture there arise three divergent bristle-shaped spines half as long as the thorax. Peristome with a double coronal of small square pores (the inner smaller and more numerous than the outer), and with a single coronal of divergent marginal spines. This cosmopolitan species is rather variable.

Dimensions
Cephalis 0.02 to 0.03 diameter; thorax 0.1 to 0.12 long, 0.02 [probably 0.20] to 0.25 broad.

Habitat
Cosmopolitan; Mediterranean, Atlantic, Indian, Pacific, surface.

Haeckel 1887


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