Bathykorus bouilloni
GBIF:124956139
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Descriptions(4)
Export occurrence data
Darwin Core Archive (ZIP)
CLASSIFICATION
Taxonomic Classification Tree
MULTIMEDIA
Media Files(4)
FIGURE 1. Bathykorus bouilloni. All photographs obtained from a live specimen. A. Entire swimming medusa showing the positions of the primary and secondary tentacles, as well as the three interradial manubrial pouches per quadrant. B. Close up view of the base of the secondary tentacle and statocyst showing the 7 statoliths. sc, statocyst; st, secondary tentacle (scale bar = 200 µm). C. Close up view of the entire secondary tentacle (scale bar = 200 µm). D. Aboral view of one full quadrant of the medusa. m, mouth; mp, manubrial pouch; pt, primary tentacle; st, secondary tentacle; rt, tentacular root (scale bar = 1000 µm). E. Close up of the primary tentacular root (rt) (scale bar = 1000 µm).
FIGURE 2. Cnidome of Bathykorus bouilloni. A. Primary tentacle showing the characteristic endodermal chordal cells (ch) inside the tentacle and the asymmetrical distribution of the nematocysts on the aboral (right) side of the tentacle (nc). B. Close up view of chordal cells and cellular matrix at the core of the tentacle. C. Undischarged nematocysts on tentacle showing the two main size classes. Coiled threads can be seen inside the capsules. D. Discharged large and small apotrichous isorhizae nematocysts. All scale bars = 50 µm.
FIGURE 3. Histogram of nematocyst sizes in Bathykorus bouilloni. Nematocyst diameters (n = 105) were measured from a random assortment of microscopic video stills taken of a live specimen. There are two statistically different size classes (Mann-Whitney rank sum, P = <0.001).
FIGURE 4. Horizontal and vertical distribution of Bathykorus bouilloni in the Canada Basin, Northwind Ridge and Chukchi Plateau Region, summer 2005. The number of individuals observed per hour by the ROV is presented in 100 m depth bin intervals, from the surface to the maximum depth achieved for a particular station (see Table 1). The bottom depth, when within the ROV’s depth range, is shown in gray.
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