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Coronadena mutabilis Hyman 1940
Life   Platyhelminthes   Rhabditophora   Discocelidae   Coronadena

Coronadena mutabilis
© Copyright Marian K. Litvaitis, University of New Hampshire, 2005-2007 · 1
Coronadena mutabilis

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Coronadena mutabilis
© Copyright Marian K. Litvaitis, University of New Hampshire, 2005-2007 · 1
Coronadena mutabilis
Overview
Coronadena mutabilis is the type and only species of this genus.

Kinds
Type Material deposited at the US National Museum. Neotype: USNM No 20186, Pearse's type of Discocelis grisea selected as the neotype of Discocelis mutabilis Verrill, now Coronoadena mutabilis by Hyman (1940). Two sets of serial sections also at the USNM.

Identification
Oval or oboval body shape, max dimensiosn 18 x 5 mm, no tentacles. Marginal band of small eyes around anterior half, cerebral and tentacular eyes as four conspicuous clusters. Florida specimens gray with faintly radiating light streaks; NC specimens northward yellowish brown or tan with brown speckles. Central, elongate pharynx, highly ruffled. Male system with large prostatoids; typical seminal vesicle and prostatic vesicle absent. Common gonopore. Female system with numerous cement glands and Lang's vesicle.

Names
Scientific source:

Polycelis mutabilis Verrill 1873, Discocelis mutabilis Verrill 1893, Discocelis grisea Pearse 1938


Geographic distribution
Florida northward to Massachusetts, rare in northern part of range. Among red algae in 3-5 m, off Thimble Island, Connecticut, USA.

References
Verrill AE (1873) Report upon the invertebrate animals of Vineyard Sound and adjacent waters, with an account of the physical characters of the region. Rept US Comm Fish and Fisher 1871-72, pp 296-778, 4 fig, 38 pls
Verrill AE (1892-1893) Marine planarians of New England. Trans Connecticut Acad Arts Sci 8: 459-520, 2 fig, 5 pls
Pearse AS (1938) Polyclads of the east coast of North America. Proc US natn Mus 86: 67-98
Hyman LH (1940) The polyclad flatworms of the Atlantic coast of the United States and Canada. Proc US natn Mus 89: 449-495

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Updated: 2018-09-22 13:33:14 gmt
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