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Taxon profile

species

Inglisella nympha T. A. Garrard, 1975

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  order Neogastropoda »  family Cancellariidae »  genus Inglisella

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Inglisella nympha

Author: Garrard, T.A.

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Description

Protoconch large and prominent, 1,5transparent shining deviated whorls, terminating abruptly at adult sculpture, nucleus slightly submerged. Teleoconch 3 translucent, convex, bi-carinated whorls, body-whorl 60 per cent of total length. Sutures strongly impressed. Sculpture of two fine sharp transverse threads, bicarinating whorls, a third thread on body-whorl at suture line; heavy growth lines, simulating narrow axial ribs, occur at irregular intervals, conforming to shape of outer-lip; commencing at third thread near suture line, and crossing a further vague flattened thread below it, occur a multitude of very fine sharp crowded growth lines extending to base of shell; these lines are completely absent above the third thread, where only a few finer growth lines occur spasmodically between the much heavier pseudo "ribs". Umbilicus absent. Aperture widely ovate, tapering sharply posteriorly, opening anteriorly into a short broad siphonal canal, inclined to left under columella; columella arcuate, one very weak flattened central ridge hehind columella, inner-lip not calloused; outer-lip thin and regularly curved. Colour translucent off-white. Dimensions. Holotype, length 6,6 mm, breadth 3,2 mm. Apparently mature.
Garrard, T.A., 1975. A revision of Australian Cancellariidae (Gastropoda: Mollusca).

Interchangeable taxa

Compared with Inglisella fischeri A. Adams, this species has a protoconch twice the size, less transverse striations, no axial ribbing, the aperture widens out considerably more anteriorly, it has no internal lirae, and only one barely discernible columella plait; it is also a thinner and frailer shell. Fortunately the holotype and larger paratype are in fine condition.
Garrard, T.A., 1975. A revision of Australian Cancellariidae (Gastropoda: Mollusca).

Distribution

Distribution. Type locality, and 61 km S. of Tamboon Inlet, Victoria, off Gippsland coast (38° 24' S., 149° 08' 50" E.), 987 metres. Type locality. 53 km E. x S. of Green Cape, New South Wales (37° 18' S. 150° 34' E.), 860 metres.
Garrard, T.A., 1975. A revision of Australian Cancellariidae (Gastropoda: Mollusca).
Author: Jan Delsing

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