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Cryptotrochus

Cairns, 1988, p. 709

Type Species

C. carolinensis Cairns, 1988, p. 711, figs. 1-9; Original Designation

Type Specimen: Holotype; USNM 46914; Verified; Dry Preserved

Type Locality: Recent: off North Carolina, 320 m

Paratypes also deposited at USNM

Classification

Diagnosis

Corallum ceratoid to trochoid, with a pointed base and circular in cross section; GCD up to 10 mm; theca imperforate; costae ridged and serrate, originating by trifurcation; septa hexamerally arranged in 4 cycles; one crown of 6P2; columella papillose.

Comparisons

Differs from Alveolocyathus in having an imperforate theca.

Remarks

This genus and family was monographed by Cairns (1997), which included a phylogenetic analysis based on morphology.

Distribution

  • Western Pacific; Recent
  • Western Atlantic; Recent
Depth: 320-700 m Cairns, 1997: figs. 2a, 5c, 7j (trifurcation)

This page has been in preparation since 18-Jul-2008 18:26

This version was contributed by Stephen D. Cairns on 18-Nov-2008 20:24.

Page authors are: Stephen D. Cairns. Please contact the editor if you would like to contribute to the diagnosis of this taxon.

The editor is: Stephen D. Cairns


view of serrate costal ornamentation
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View of costal trifurcation
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Calicular view of corallum
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Lateral view of corallum
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