Overview

Comprehensive Description

Original Description: Chromodoris maculosa Pease 1871

Animal subcylindrical, elongate, narrow, smooth, flaccid, sub-
pellucid. Mantle dilated in front and rounded behind, sides nearly parallel. Cervical tentacles large, sub-erect on stout bases, elongate oval, laminae deeply incised, retractile into simple cavities. Branchial star moderately developed, consisting of eight sub-erect, lanceolate, narrow pinnate plumules, connate at their bases, and retractile into a common simple cavity. Vent, a simple orifice. Labial tentacles small, finger-shaped. Foot elongate, narrow, truncately rounded and fissured in front; acutely rounded and projecting far beyond the body posteriorly.
Color cream yellow, margined with fulvous, on which there is a series of abbreviate reddish lines, three irregular radiating, fulvous lines, extending from the front margin of the mantle toward the tentacles; lineated longitudinally with opaque white, line four, the two median encircle the branchiae and pass between the dorsal tentacles, which they partly encircle, the two lateral lines extend from the tentacles to the posterior end of the body; the spaces between the lines dotted with purple. Cervical tentacles pale, a broad brownish red zone just below the apex. Branchial plumules pale slate color tipped with red. Upper surface of the foot and under sides of the mantle lineated same as above, and dotted with violet, the former shaded with violet beneath and along the upper margin, and the latter marginated with dingy red.
Length, one and a half inch.
Habitat, Tahiti.
Station, (under stones at low water. A.G.)

  • Pease, W.H., 1871 Descriptions of new species of nudibranchiate Mollusca inhabiting Polynesia No.2, American Journal of Conchology, 7 11-19, pls 3-9.
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Supplier: Rebecca Johnson

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Ecology

Habitat

Depth range based on 3 specimens in 1 taxon.
Water temperature and chemistry ranges based on 1 sample.

Environmental ranges
  Depth range (m): 2 - 10
  Temperature range (°C): 26.803 - 26.803
  Nitrate (umol/L): 0.090 - 0.090
  Salinity (PPS): 34.975 - 34.975
  Oxygen (ml/l): 4.666 - 4.666
  Phosphate (umol/l): 0.131 - 0.131
  Silicate (umol/l): 1.005 - 1.005

Graphical representation

Depth range (m): 2 - 10
 
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Wikipedia

Hypselodoris maculosa

Hypselodoris maculosa is a species of sea slug or dorid nudibranch, a marine gastropod mollusk in the family Chromodorididae.[2]

Contents

Distribution [edit]

This nudibranch is found in the tropical Indo-Pacific Ocean.

Description [edit]

Hypselodoris maculosa has a white and red body with white spots and lines on its dorsum. Its anterior end is often light-purple in colour and the gills and rhinophores are white, lined with red bands. There is a large range of colour variation between individuals of this species.

This species can reach a total length of at least 20 mm and has been observed feeding on yellow sponges from the genus Euryspongia.[3]

References [edit]

  1. ^ Pease, W.H. (1871). "Descriptions of new species of nudibranchiate Mollusca inhabiting Polynesia". American Journal of Conchology 7(1): 11-19, Pls. 3-9.
  2. ^ http://www.seaslugforum.net/find/hypmacu
  3. ^ http://www.seaslugforum.net/find/20944
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